./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0e25d8-8c8b-4b49-a071-323844cc11c8/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0e25d8-8c8b-4b49-a071-323844cc11c8/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0e25d8-8c8b-4b49-a071-323844cc11c8/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0e25d8-8c8b-4b49-a071-323844cc11c8/bin/utaipan-Q6hlc19bkW/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0e25d8-8c8b-4b49-a071-323844cc11c8/bin/utaipan-Q6hlc19bkW/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0e25d8-8c8b-4b49-a071-323844cc11c8/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f6b55d0b1c42ab7aaefa2efb35454af77e64d43e1c106bfebef7445a043c9409 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:07:39,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:07:39,132 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:07:39,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:07:39,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:07:39,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:07:39,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:07:39,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:07:39,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:07:39,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:07:39,194 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:07:39,195 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:07:39,196 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:07:39,197 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:07:39,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:07:39,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:07:39,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:07:39,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:07:39,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:07:39,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:07:39,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:07:39,217 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:07:39,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:07:39,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:07:39,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:07:39,231 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:07:39,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:07:39,233 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:07:39,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:07:39,235 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:07:39,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:07:39,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:07:39,238 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:07:39,239 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:07:39,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:07:39,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:07:39,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:07:39,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:07:39,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:07:39,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:07:39,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:07:39,247 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0e25d8-8c8b-4b49-a071-323844cc11c8/bin/utaipan-Q6hlc19bkW/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-23 14:07:39,271 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:07:39,272 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:07:39,272 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:07:39,273 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:07:39,273 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:07:39,274 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:07:39,274 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:07:39,274 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:07:39,275 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:07:39,275 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:07:39,275 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:07:39,276 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:07:39,276 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:07:39,276 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:07:39,277 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:07:39,277 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:07:39,277 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:07:39,278 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:07:39,278 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 14:07:39,279 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 14:07:39,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:07:39,280 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:07:39,280 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:07:39,280 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:07:39,280 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:07:39,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:07:39,281 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-23 14:07:39,281 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-23 14:07:39,282 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-23 14:07:39,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:07:39,282 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 14:07:39,282 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:07:39,283 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:07:39,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:07:39,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:07:39,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:07:39,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:07:39,284 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:07:39,285 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:07:39,285 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:07:39,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:07:39,286 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:07:39,286 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0e25d8-8c8b-4b49-a071-323844cc11c8/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0e25d8-8c8b-4b49-a071-323844cc11c8/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6b55d0b1c42ab7aaefa2efb35454af77e64d43e1c106bfebef7445a043c9409 [2022-11-23 14:07:39,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:07:39,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:07:39,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:07:39,629 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:07:39,630 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:07:39,631 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0e25d8-8c8b-4b49-a071-323844cc11c8/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c [2022-11-23 14:07:42,654 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:07:42,987 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:07:42,994 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0e25d8-8c8b-4b49-a071-323844cc11c8/sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c [2022-11-23 14:07:43,003 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0e25d8-8c8b-4b49-a071-323844cc11c8/bin/utaipan-Q6hlc19bkW/data/190088181/62905c11a8bc413aa0c13f1dde60f90a/FLAGd91689ad3 [2022-11-23 14:07:43,020 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0e25d8-8c8b-4b49-a071-323844cc11c8/bin/utaipan-Q6hlc19bkW/data/190088181/62905c11a8bc413aa0c13f1dde60f90a [2022-11-23 14:07:43,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:07:43,025 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:07:43,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:07:43,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:07:43,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:07:43,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:07:43" (1/1) ... [2022-11-23 14:07:43,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67160523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:43, skipping insertion in model container [2022-11-23 14:07:43,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:07:43" (1/1) ... [2022-11-23 14:07:43,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:07:43,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:07:43,255 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0e25d8-8c8b-4b49-a071-323844cc11c8/sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c[5426,5439] [2022-11-23 14:07:43,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:07:43,270 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:07:43,301 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0e25d8-8c8b-4b49-a071-323844cc11c8/sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c[5426,5439] [2022-11-23 14:07:43,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:07:43,317 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:07:43,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:43 WrapperNode [2022-11-23 14:07:43,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:07:43,319 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:07:43,319 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:07:43,319 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:07:43,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:43" (1/1) ... [2022-11-23 14:07:43,335 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:43" (1/1) ... [2022-11-23 14:07:43,363 INFO L138 Inliner]: procedures = 22, calls = 110, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 255 [2022-11-23 14:07:43,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:07:43,364 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:07:43,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:07:43,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:07:43,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:43" (1/1) ... [2022-11-23 14:07:43,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:43" (1/1) ... [2022-11-23 14:07:43,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:43" (1/1) ... [2022-11-23 14:07:43,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:43" (1/1) ... [2022-11-23 14:07:43,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:43" (1/1) ... [2022-11-23 14:07:43,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:43" (1/1) ... [2022-11-23 14:07:43,390 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:43" (1/1) ... [2022-11-23 14:07:43,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:43" (1/1) ... [2022-11-23 14:07:43,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:07:43,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:07:43,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:07:43,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:07:43,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:43" (1/1) ... [2022-11-23 14:07:43,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:07:43,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0e25d8-8c8b-4b49-a071-323844cc11c8/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:07:43,432 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0e25d8-8c8b-4b49-a071-323844cc11c8/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:07:43,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0e25d8-8c8b-4b49-a071-323844cc11c8/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:07:43,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:07:43,481 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-23 14:07:43,482 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-23 14:07:43,482 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-23 14:07:43,482 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-23 14:07:43,482 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-23 14:07:43,482 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-23 14:07:43,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:07:43,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:07:43,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:07:43,483 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 14:07:43,483 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 14:07:43,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:07:43,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:07:43,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:07:43,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:07:43,486 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 14:07:43,609 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:07:43,613 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:07:44,160 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:07:44,349 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:07:44,349 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 14:07:44,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:07:44 BoogieIcfgContainer [2022-11-23 14:07:44,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:07:44,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:07:44,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:07:44,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:07:44,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:07:43" (1/3) ... [2022-11-23 14:07:44,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5683b191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:07:44, skipping insertion in model container [2022-11-23 14:07:44,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:43" (2/3) ... [2022-11-23 14:07:44,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5683b191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:07:44, skipping insertion in model container [2022-11-23 14:07:44,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:07:44" (3/3) ... [2022-11-23 14:07:44,371 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-3.wvr.c [2022-11-23 14:07:44,397 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:07:44,398 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-23 14:07:44,398 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 14:07:44,588 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-23 14:07:44,643 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 14:07:44,667 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 176 places, 168 transitions, 360 flow [2022-11-23 14:07:44,670 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 176 places, 168 transitions, 360 flow [2022-11-23 14:07:44,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 168 transitions, 360 flow [2022-11-23 14:07:44,758 INFO L130 PetriNetUnfolder]: 2/165 cut-off events. [2022-11-23 14:07:44,759 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-23 14:07:44,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 165 events. 2/165 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 158 event pairs, 0 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 114. Up to 2 conditions per place. [2022-11-23 14:07:44,767 INFO L119 LiptonReduction]: Number of co-enabled transitions 2688 [2022-11-23 14:07:53,217 INFO L134 LiptonReduction]: Checked pairs total: 17048 [2022-11-23 14:07:53,217 INFO L136 LiptonReduction]: Total number of compositions: 138 [2022-11-23 14:07:53,228 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 70 places, 60 transitions, 144 flow [2022-11-23 14:07:53,530 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6387 states, 6373 states have (on average 3.360426800564883) internal successors, (21416), 6386 states have internal predecessors, (21416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:53,563 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:07:53,572 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@29b6efb0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:07:53,573 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2022-11-23 14:07:53,599 INFO L276 IsEmpty]: Start isEmpty. Operand has 6387 states, 6373 states have (on average 3.360426800564883) internal successors, (21416), 6386 states have internal predecessors, (21416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:53,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-23 14:07:53,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:07:53,606 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-23 14:07:53,607 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:07:53,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:07:53,616 INFO L85 PathProgramCache]: Analyzing trace with hash 786, now seen corresponding path program 1 times [2022-11-23 14:07:53,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:07:53,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541442962] [2022-11-23 14:07:53,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:53,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:07:53,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:07:53,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:07:53,756 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:07:53,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541442962] [2022-11-23 14:07:53,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541442962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:07:53,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:07:53,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-23 14:07:53,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181641142] [2022-11-23 14:07:53,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:07:53,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:07:53,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:07:53,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:07:53,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:07:53,831 INFO L87 Difference]: Start difference. First operand has 6387 states, 6373 states have (on average 3.360426800564883) internal successors, (21416), 6386 states have internal predecessors, (21416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:54,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:07:54,099 INFO L93 Difference]: Finished difference Result 6384 states and 21413 transitions. [2022-11-23 14:07:54,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:07:54,103 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-23 14:07:54,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:07:54,180 INFO L225 Difference]: With dead ends: 6384 [2022-11-23 14:07:54,180 INFO L226 Difference]: Without dead ends: 6384 [2022-11-23 14:07:54,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:07:54,185 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:07:54,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:07:54,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6384 states. [2022-11-23 14:07:54,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6384 to 6384. [2022-11-23 14:07:54,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6384 states, 6373 states have (on average 3.3599560646477324) internal successors, (21413), 6383 states have internal predecessors, (21413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:54,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6384 states to 6384 states and 21413 transitions. [2022-11-23 14:07:54,566 INFO L78 Accepts]: Start accepts. Automaton has 6384 states and 21413 transitions. Word has length 1 [2022-11-23 14:07:54,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:07:54,567 INFO L495 AbstractCegarLoop]: Abstraction has 6384 states and 21413 transitions. [2022-11-23 14:07:54,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:54,568 INFO L276 IsEmpty]: Start isEmpty. Operand 6384 states and 21413 transitions. [2022-11-23 14:07:54,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-23 14:07:54,569 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:07:54,569 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-23 14:07:54,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:07:54,570 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:07:54,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:07:54,571 INFO L85 PathProgramCache]: Analyzing trace with hash 774108, now seen corresponding path program 1 times [2022-11-23 14:07:54,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:07:54,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423724150] [2022-11-23 14:07:54,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:54,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:07:54,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:07:55,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:07:55,191 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:07:55,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423724150] [2022-11-23 14:07:55,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423724150] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:07:55,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:07:55,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 14:07:55,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725128418] [2022-11-23 14:07:55,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:07:55,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:07:55,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:07:55,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:07:55,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:07:55,205 INFO L87 Difference]: Start difference. First operand 6384 states and 21413 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:55,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:07:55,396 INFO L93 Difference]: Finished difference Result 6252 states and 21051 transitions. [2022-11-23 14:07:55,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:07:55,397 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-23 14:07:55,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:07:55,464 INFO L225 Difference]: With dead ends: 6252 [2022-11-23 14:07:55,464 INFO L226 Difference]: Without dead ends: 6252 [2022-11-23 14:07:55,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:07:55,467 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 49 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:07:55,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 9 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:07:55,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6252 states. [2022-11-23 14:07:55,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6252 to 6252. [2022-11-23 14:07:55,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6252 states, 6243 states have (on average 3.3719365689572323) internal successors, (21051), 6251 states have internal predecessors, (21051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:55,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6252 states to 6252 states and 21051 transitions. [2022-11-23 14:07:55,765 INFO L78 Accepts]: Start accepts. Automaton has 6252 states and 21051 transitions. Word has length 3 [2022-11-23 14:07:55,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:07:55,766 INFO L495 AbstractCegarLoop]: Abstraction has 6252 states and 21051 transitions. [2022-11-23 14:07:55,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:55,766 INFO L276 IsEmpty]: Start isEmpty. Operand 6252 states and 21051 transitions. [2022-11-23 14:07:55,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-23 14:07:55,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:07:55,767 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-23 14:07:55,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:07:55,768 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:07:55,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:07:55,768 INFO L85 PathProgramCache]: Analyzing trace with hash 774109, now seen corresponding path program 1 times [2022-11-23 14:07:55,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:07:55,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500847011] [2022-11-23 14:07:55,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:55,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:07:55,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:07:55,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:07:55,888 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:07:55,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500847011] [2022-11-23 14:07:55,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500847011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:07:55,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:07:55,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 14:07:55,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402448215] [2022-11-23 14:07:55,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:07:55,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:07:55,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:07:55,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:07:55,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:07:55,892 INFO L87 Difference]: Start difference. First operand 6252 states and 21051 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:56,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:07:56,020 INFO L93 Difference]: Finished difference Result 6120 states and 20689 transitions. [2022-11-23 14:07:56,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:07:56,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-23 14:07:56,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:07:56,169 INFO L225 Difference]: With dead ends: 6120 [2022-11-23 14:07:56,170 INFO L226 Difference]: Without dead ends: 6120 [2022-11-23 14:07:56,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:07:56,174 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 47 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:07:56,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 9 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:07:56,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6120 states. [2022-11-23 14:07:56,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6120 to 6120. [2022-11-23 14:07:56,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6120 states, 6113 states have (on average 3.3844266317683624) internal successors, (20689), 6119 states have internal predecessors, (20689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:56,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6120 states to 6120 states and 20689 transitions. [2022-11-23 14:07:56,424 INFO L78 Accepts]: Start accepts. Automaton has 6120 states and 20689 transitions. Word has length 3 [2022-11-23 14:07:56,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:07:56,426 INFO L495 AbstractCegarLoop]: Abstraction has 6120 states and 20689 transitions. [2022-11-23 14:07:56,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:56,426 INFO L276 IsEmpty]: Start isEmpty. Operand 6120 states and 20689 transitions. [2022-11-23 14:07:56,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 14:07:56,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:07:56,427 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 14:07:56,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:07:56,428 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:07:56,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:07:56,428 INFO L85 PathProgramCache]: Analyzing trace with hash 743936482, now seen corresponding path program 1 times [2022-11-23 14:07:56,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:07:56,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007960265] [2022-11-23 14:07:56,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:56,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:07:56,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:07:56,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:07:56,596 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:07:56,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007960265] [2022-11-23 14:07:56,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007960265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:07:56,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:07:56,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 14:07:56,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407225885] [2022-11-23 14:07:56,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:07:56,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:07:56,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:07:56,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:07:56,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:07:56,598 INFO L87 Difference]: Start difference. First operand 6120 states and 20689 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:56,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:07:56,734 INFO L93 Difference]: Finished difference Result 5988 states and 20327 transitions. [2022-11-23 14:07:56,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:07:56,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-23 14:07:56,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:07:56,763 INFO L225 Difference]: With dead ends: 5988 [2022-11-23 14:07:56,764 INFO L226 Difference]: Without dead ends: 5988 [2022-11-23 14:07:56,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:07:56,765 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 43 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:07:56,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 9 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:07:56,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5988 states. [2022-11-23 14:07:56,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5988 to 5988. [2022-11-23 14:07:56,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5988 states, 5983 states have (on average 3.3974594684940667) internal successors, (20327), 5987 states have internal predecessors, (20327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:57,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5988 states to 5988 states and 20327 transitions. [2022-11-23 14:07:57,015 INFO L78 Accepts]: Start accepts. Automaton has 5988 states and 20327 transitions. Word has length 5 [2022-11-23 14:07:57,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:07:57,016 INFO L495 AbstractCegarLoop]: Abstraction has 5988 states and 20327 transitions. [2022-11-23 14:07:57,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:57,016 INFO L276 IsEmpty]: Start isEmpty. Operand 5988 states and 20327 transitions. [2022-11-23 14:07:57,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 14:07:57,016 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:07:57,017 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 14:07:57,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:07:57,017 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:07:57,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:07:57,018 INFO L85 PathProgramCache]: Analyzing trace with hash 743936484, now seen corresponding path program 1 times [2022-11-23 14:07:57,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:07:57,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607006122] [2022-11-23 14:07:57,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:57,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:07:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:07:57,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:07:57,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:07:57,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607006122] [2022-11-23 14:07:57,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607006122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:07:57,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:07:57,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 14:07:57,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002476405] [2022-11-23 14:07:57,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:07:57,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:07:57,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:07:57,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:07:57,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:07:57,085 INFO L87 Difference]: Start difference. First operand 5988 states and 20327 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:57,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:07:57,181 INFO L93 Difference]: Finished difference Result 5856 states and 19965 transitions. [2022-11-23 14:07:57,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:07:57,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-23 14:07:57,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:07:57,209 INFO L225 Difference]: With dead ends: 5856 [2022-11-23 14:07:57,209 INFO L226 Difference]: Without dead ends: 5856 [2022-11-23 14:07:57,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:07:57,210 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 41 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:07:57,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 9 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:07:57,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5856 states. [2022-11-23 14:07:57,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5856 to 5856. [2022-11-23 14:07:57,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5856 states, 5853 states have (on average 3.4110712455151204) internal successors, (19965), 5855 states have internal predecessors, (19965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:57,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5856 states to 5856 states and 19965 transitions. [2022-11-23 14:07:57,592 INFO L78 Accepts]: Start accepts. Automaton has 5856 states and 19965 transitions. Word has length 5 [2022-11-23 14:07:57,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:07:57,592 INFO L495 AbstractCegarLoop]: Abstraction has 5856 states and 19965 transitions. [2022-11-23 14:07:57,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:57,593 INFO L276 IsEmpty]: Start isEmpty. Operand 5856 states and 19965 transitions. [2022-11-23 14:07:57,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 14:07:57,593 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:07:57,594 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:07:57,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:07:57,594 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:07:57,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:07:57,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1958408803, now seen corresponding path program 1 times [2022-11-23 14:07:57,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:07:57,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855123067] [2022-11-23 14:07:57,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:57,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:07:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:07:57,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:07:57,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:07:57,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855123067] [2022-11-23 14:07:57,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855123067] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:07:57,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:07:57,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:07:57,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104132264] [2022-11-23 14:07:57,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:07:57,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:07:57,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:07:57,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:07:57,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:07:57,833 INFO L87 Difference]: Start difference. First operand 5856 states and 19965 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:58,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:07:58,012 INFO L93 Difference]: Finished difference Result 4525 states and 15004 transitions. [2022-11-23 14:07:58,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:07:58,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-23 14:07:58,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:07:58,038 INFO L225 Difference]: With dead ends: 4525 [2022-11-23 14:07:58,039 INFO L226 Difference]: Without dead ends: 4525 [2022-11-23 14:07:58,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:07:58,040 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 84 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:07:58,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 9 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:07:58,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4525 states. [2022-11-23 14:07:58,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4525 to 4525. [2022-11-23 14:07:58,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4525 states, 4523 states have (on average 3.3172673004642936) internal successors, (15004), 4524 states have internal predecessors, (15004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:58,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4525 states to 4525 states and 15004 transitions. [2022-11-23 14:07:58,316 INFO L78 Accepts]: Start accepts. Automaton has 4525 states and 15004 transitions. Word has length 7 [2022-11-23 14:07:58,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:07:58,316 INFO L495 AbstractCegarLoop]: Abstraction has 4525 states and 15004 transitions. [2022-11-23 14:07:58,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:58,317 INFO L276 IsEmpty]: Start isEmpty. Operand 4525 states and 15004 transitions. [2022-11-23 14:07:58,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 14:07:58,318 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:07:58,318 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:07:58,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 14:07:58,318 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:07:58,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:07:58,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1958408804, now seen corresponding path program 1 times [2022-11-23 14:07:58,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:07:58,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312148526] [2022-11-23 14:07:58,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:58,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:07:58,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:07:58,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:07:58,374 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:07:58,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312148526] [2022-11-23 14:07:58,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312148526] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:07:58,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:07:58,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 14:07:58,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967276663] [2022-11-23 14:07:58,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:07:58,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:07:58,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:07:58,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:07:58,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:07:58,377 INFO L87 Difference]: Start difference. First operand 4525 states and 15004 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:58,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:07:58,460 INFO L93 Difference]: Finished difference Result 3194 states and 10043 transitions. [2022-11-23 14:07:58,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:07:58,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-23 14:07:58,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:07:58,474 INFO L225 Difference]: With dead ends: 3194 [2022-11-23 14:07:58,475 INFO L226 Difference]: Without dead ends: 3194 [2022-11-23 14:07:58,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:07:58,476 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 37 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:07:58,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 9 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:07:58,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3194 states. [2022-11-23 14:07:58,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3194 to 3194. [2022-11-23 14:07:58,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3194 states, 3193 states have (on average 3.1453178828687753) internal successors, (10043), 3193 states have internal predecessors, (10043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:58,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3194 states to 3194 states and 10043 transitions. [2022-11-23 14:07:58,571 INFO L78 Accepts]: Start accepts. Automaton has 3194 states and 10043 transitions. Word has length 7 [2022-11-23 14:07:58,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:07:58,572 INFO L495 AbstractCegarLoop]: Abstraction has 3194 states and 10043 transitions. [2022-11-23 14:07:58,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:58,572 INFO L276 IsEmpty]: Start isEmpty. Operand 3194 states and 10043 transitions. [2022-11-23 14:07:58,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:07:58,585 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:07:58,586 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:07:58,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 14:07:58,586 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:07:58,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:07:58,587 INFO L85 PathProgramCache]: Analyzing trace with hash 920798555, now seen corresponding path program 1 times [2022-11-23 14:07:58,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:07:58,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850116001] [2022-11-23 14:07:58,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:58,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:07:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:07:59,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:07:59,165 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:07:59,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850116001] [2022-11-23 14:07:59,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850116001] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:07:59,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:07:59,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:07:59,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280435333] [2022-11-23 14:07:59,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:07:59,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:07:59,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:07:59,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:07:59,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:07:59,168 INFO L87 Difference]: Start difference. First operand 3194 states and 10043 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:07:59,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:07:59,899 INFO L93 Difference]: Finished difference Result 3947 states and 11894 transitions. [2022-11-23 14:07:59,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 14:07:59,900 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:07:59,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:07:59,914 INFO L225 Difference]: With dead ends: 3947 [2022-11-23 14:07:59,914 INFO L226 Difference]: Without dead ends: 3846 [2022-11-23 14:07:59,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:07:59,915 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 174 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:07:59,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 71 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 824 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 14:07:59,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3846 states. [2022-11-23 14:08:00,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3846 to 3226. [2022-11-23 14:08:00,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3226 states, 3225 states have (on average 3.133953488372093) internal successors, (10107), 3225 states have internal predecessors, (10107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:00,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3226 states to 3226 states and 10107 transitions. [2022-11-23 14:08:00,094 INFO L78 Accepts]: Start accepts. Automaton has 3226 states and 10107 transitions. Word has length 43 [2022-11-23 14:08:00,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:00,095 INFO L495 AbstractCegarLoop]: Abstraction has 3226 states and 10107 transitions. [2022-11-23 14:08:00,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:00,096 INFO L276 IsEmpty]: Start isEmpty. Operand 3226 states and 10107 transitions. [2022-11-23 14:08:00,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:00,112 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:00,112 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:00,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 14:08:00,112 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:00,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:00,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1643607425, now seen corresponding path program 2 times [2022-11-23 14:08:00,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:00,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797890013] [2022-11-23 14:08:00,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:00,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:00,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:01,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:01,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:01,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797890013] [2022-11-23 14:08:01,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797890013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:01,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:01,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:08:01,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228898249] [2022-11-23 14:08:01,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:01,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:08:01,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:01,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:08:01,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:08:01,520 INFO L87 Difference]: Start difference. First operand 3226 states and 10107 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:01,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:01,881 INFO L93 Difference]: Finished difference Result 4134 states and 12726 transitions. [2022-11-23 14:08:01,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:08:01,882 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:01,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:01,899 INFO L225 Difference]: With dead ends: 4134 [2022-11-23 14:08:01,899 INFO L226 Difference]: Without dead ends: 4134 [2022-11-23 14:08:01,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:08:01,902 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 114 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:01,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 59 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:08:01,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4134 states. [2022-11-23 14:08:02,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4134 to 3914. [2022-11-23 14:08:02,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3914 states, 3913 states have (on average 3.1298236647073856) internal successors, (12247), 3913 states have internal predecessors, (12247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:02,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3914 states to 3914 states and 12247 transitions. [2022-11-23 14:08:02,032 INFO L78 Accepts]: Start accepts. Automaton has 3914 states and 12247 transitions. Word has length 43 [2022-11-23 14:08:02,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:02,032 INFO L495 AbstractCegarLoop]: Abstraction has 3914 states and 12247 transitions. [2022-11-23 14:08:02,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:02,033 INFO L276 IsEmpty]: Start isEmpty. Operand 3914 states and 12247 transitions. [2022-11-23 14:08:02,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:02,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:02,047 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:02,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 14:08:02,048 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:02,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:02,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1153057785, now seen corresponding path program 3 times [2022-11-23 14:08:02,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:02,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629158574] [2022-11-23 14:08:02,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:02,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:02,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:02,603 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:02,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629158574] [2022-11-23 14:08:02,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629158574] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:02,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:02,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:08:02,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164228757] [2022-11-23 14:08:02,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:02,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:08:02,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:02,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:08:02,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:08:02,610 INFO L87 Difference]: Start difference. First operand 3914 states and 12247 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:03,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:03,359 INFO L93 Difference]: Finished difference Result 4771 states and 14380 transitions. [2022-11-23 14:08:03,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 14:08:03,361 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:03,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:03,383 INFO L225 Difference]: With dead ends: 4771 [2022-11-23 14:08:03,384 INFO L226 Difference]: Without dead ends: 4508 [2022-11-23 14:08:03,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:08:03,385 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 181 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:03,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 72 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 14:08:03,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4508 states. [2022-11-23 14:08:03,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4508 to 3852. [2022-11-23 14:08:03,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3852 states, 3851 states have (on average 3.1197091664502725) internal successors, (12014), 3851 states have internal predecessors, (12014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:03,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3852 states to 3852 states and 12014 transitions. [2022-11-23 14:08:03,559 INFO L78 Accepts]: Start accepts. Automaton has 3852 states and 12014 transitions. Word has length 43 [2022-11-23 14:08:03,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:03,560 INFO L495 AbstractCegarLoop]: Abstraction has 3852 states and 12014 transitions. [2022-11-23 14:08:03,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:03,560 INFO L276 IsEmpty]: Start isEmpty. Operand 3852 states and 12014 transitions. [2022-11-23 14:08:03,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:03,576 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:03,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:03,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 14:08:03,576 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:03,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:03,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1091789715, now seen corresponding path program 4 times [2022-11-23 14:08:03,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:03,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747594848] [2022-11-23 14:08:03,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:03,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:03,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:04,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:04,465 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:04,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747594848] [2022-11-23 14:08:04,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747594848] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:04,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:04,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:08:04,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588659755] [2022-11-23 14:08:04,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:04,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:08:04,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:04,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:08:04,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:08:04,467 INFO L87 Difference]: Start difference. First operand 3852 states and 12014 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:04,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:04,844 INFO L93 Difference]: Finished difference Result 4712 states and 14672 transitions. [2022-11-23 14:08:04,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:08:04,845 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:04,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:04,862 INFO L225 Difference]: With dead ends: 4712 [2022-11-23 14:08:04,862 INFO L226 Difference]: Without dead ends: 4712 [2022-11-23 14:08:04,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:08:04,863 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 64 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:04,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 76 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:08:04,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4712 states. [2022-11-23 14:08:04,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4712 to 4480. [2022-11-23 14:08:04,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4480 states, 4479 states have (on average 3.107390042420183) internal successors, (13918), 4479 states have internal predecessors, (13918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:04,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4480 states to 4480 states and 13918 transitions. [2022-11-23 14:08:04,994 INFO L78 Accepts]: Start accepts. Automaton has 4480 states and 13918 transitions. Word has length 43 [2022-11-23 14:08:04,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:04,995 INFO L495 AbstractCegarLoop]: Abstraction has 4480 states and 13918 transitions. [2022-11-23 14:08:04,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:04,995 INFO L276 IsEmpty]: Start isEmpty. Operand 4480 states and 13918 transitions. [2022-11-23 14:08:05,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:05,009 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:05,010 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:05,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 14:08:05,010 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:05,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:05,011 INFO L85 PathProgramCache]: Analyzing trace with hash 333176367, now seen corresponding path program 5 times [2022-11-23 14:08:05,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:05,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864987546] [2022-11-23 14:08:05,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:05,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:05,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:05,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:05,927 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:05,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864987546] [2022-11-23 14:08:05,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864987546] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:05,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:05,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:08:05,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584134691] [2022-11-23 14:08:05,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:05,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:08:05,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:05,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:08:05,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:08:05,930 INFO L87 Difference]: Start difference. First operand 4480 states and 13918 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:06,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:06,502 INFO L93 Difference]: Finished difference Result 5380 states and 16437 transitions. [2022-11-23 14:08:06,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:08:06,503 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:06,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:06,525 INFO L225 Difference]: With dead ends: 5380 [2022-11-23 14:08:06,525 INFO L226 Difference]: Without dead ends: 5380 [2022-11-23 14:08:06,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:08:06,526 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 60 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:06,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 88 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 14:08:06,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5380 states. [2022-11-23 14:08:06,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5380 to 5148. [2022-11-23 14:08:06,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5148 states, 5147 states have (on average 3.074217991062755) internal successors, (15823), 5147 states have internal predecessors, (15823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:06,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5148 states to 5148 states and 15823 transitions. [2022-11-23 14:08:06,735 INFO L78 Accepts]: Start accepts. Automaton has 5148 states and 15823 transitions. Word has length 43 [2022-11-23 14:08:06,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:06,736 INFO L495 AbstractCegarLoop]: Abstraction has 5148 states and 15823 transitions. [2022-11-23 14:08:06,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:06,736 INFO L276 IsEmpty]: Start isEmpty. Operand 5148 states and 15823 transitions. [2022-11-23 14:08:06,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:06,753 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:06,753 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:06,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-23 14:08:06,754 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:06,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:06,754 INFO L85 PathProgramCache]: Analyzing trace with hash 846489201, now seen corresponding path program 6 times [2022-11-23 14:08:06,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:06,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204418124] [2022-11-23 14:08:06,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:06,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:06,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:07,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:07,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:07,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204418124] [2022-11-23 14:08:07,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204418124] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:07,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:07,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:08:07,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468614763] [2022-11-23 14:08:07,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:07,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:08:07,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:07,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:08:07,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:08:07,233 INFO L87 Difference]: Start difference. First operand 5148 states and 15823 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:07,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:07,975 INFO L93 Difference]: Finished difference Result 6131 states and 18226 transitions. [2022-11-23 14:08:07,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 14:08:07,975 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:07,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:07,998 INFO L225 Difference]: With dead ends: 6131 [2022-11-23 14:08:07,998 INFO L226 Difference]: Without dead ends: 5604 [2022-11-23 14:08:07,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:08:07,999 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 209 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:08,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 70 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 14:08:08,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5604 states. [2022-11-23 14:08:08,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5604 to 4900. [2022-11-23 14:08:08,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4900 states, 4899 states have (on average 3.0704225352112675) internal successors, (15042), 4899 states have internal predecessors, (15042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:08,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4900 states to 4900 states and 15042 transitions. [2022-11-23 14:08:08,166 INFO L78 Accepts]: Start accepts. Automaton has 4900 states and 15042 transitions. Word has length 43 [2022-11-23 14:08:08,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:08,167 INFO L495 AbstractCegarLoop]: Abstraction has 4900 states and 15042 transitions. [2022-11-23 14:08:08,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:08,167 INFO L276 IsEmpty]: Start isEmpty. Operand 4900 states and 15042 transitions. [2022-11-23 14:08:08,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:08,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:08,184 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:08,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-23 14:08:08,184 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:08,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:08,185 INFO L85 PathProgramCache]: Analyzing trace with hash -927129233, now seen corresponding path program 7 times [2022-11-23 14:08:08,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:08,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245945109] [2022-11-23 14:08:08,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:08,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:08,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:08,614 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:08,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245945109] [2022-11-23 14:08:08,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245945109] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:08,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:08,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:08:08,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374051339] [2022-11-23 14:08:08,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:08,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:08:08,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:08,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:08:08,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:08:08,617 INFO L87 Difference]: Start difference. First operand 4900 states and 15042 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:09,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:09,325 INFO L93 Difference]: Finished difference Result 5803 states and 17245 transitions. [2022-11-23 14:08:09,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 14:08:09,325 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:09,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:09,345 INFO L225 Difference]: With dead ends: 5803 [2022-11-23 14:08:09,345 INFO L226 Difference]: Without dead ends: 5658 [2022-11-23 14:08:09,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:08:09,346 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 200 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:09,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 72 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 14:08:09,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5658 states. [2022-11-23 14:08:09,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5658 to 4952. [2022-11-23 14:08:09,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4952 states, 4951 states have (on average 3.0591799636437083) internal successors, (15146), 4951 states have internal predecessors, (15146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:09,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4952 states to 4952 states and 15146 transitions. [2022-11-23 14:08:09,569 INFO L78 Accepts]: Start accepts. Automaton has 4952 states and 15146 transitions. Word has length 43 [2022-11-23 14:08:09,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:09,569 INFO L495 AbstractCegarLoop]: Abstraction has 4952 states and 15146 transitions. [2022-11-23 14:08:09,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:09,570 INFO L276 IsEmpty]: Start isEmpty. Operand 4952 states and 15146 transitions. [2022-11-23 14:08:09,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:09,587 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:09,587 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:09,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-23 14:08:09,587 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:09,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:09,588 INFO L85 PathProgramCache]: Analyzing trace with hash -450799249, now seen corresponding path program 8 times [2022-11-23 14:08:09,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:09,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778495042] [2022-11-23 14:08:09,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:09,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:11,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:11,024 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:11,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778495042] [2022-11-23 14:08:11,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778495042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:11,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:11,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:08:11,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476238427] [2022-11-23 14:08:11,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:11,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:08:11,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:11,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:08:11,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:08:11,027 INFO L87 Difference]: Start difference. First operand 4952 states and 15146 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:11,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:11,738 INFO L93 Difference]: Finished difference Result 6886 states and 20733 transitions. [2022-11-23 14:08:11,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 14:08:11,739 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:11,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:11,768 INFO L225 Difference]: With dead ends: 6886 [2022-11-23 14:08:11,768 INFO L226 Difference]: Without dead ends: 6256 [2022-11-23 14:08:11,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:08:11,771 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 95 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:11,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 141 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 14:08:11,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6256 states. [2022-11-23 14:08:11,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6256 to 5892. [2022-11-23 14:08:11,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5891 states have (on average 3.052452894245459) internal successors, (17982), 5891 states have internal predecessors, (17982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:11,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 17982 transitions. [2022-11-23 14:08:11,983 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 17982 transitions. Word has length 43 [2022-11-23 14:08:11,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:11,984 INFO L495 AbstractCegarLoop]: Abstraction has 5892 states and 17982 transitions. [2022-11-23 14:08:11,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:11,984 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 17982 transitions. [2022-11-23 14:08:12,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:12,006 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:12,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:12,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-23 14:08:12,007 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:12,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:12,008 INFO L85 PathProgramCache]: Analyzing trace with hash 2009835373, now seen corresponding path program 9 times [2022-11-23 14:08:12,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:12,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655327833] [2022-11-23 14:08:12,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:12,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:12,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:12,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:12,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:12,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655327833] [2022-11-23 14:08:12,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655327833] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:12,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:12,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:08:12,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636797598] [2022-11-23 14:08:12,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:12,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:08:12,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:12,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:08:12,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:08:12,874 INFO L87 Difference]: Start difference. First operand 5892 states and 17982 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:13,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:13,474 INFO L93 Difference]: Finished difference Result 6108 states and 18590 transitions. [2022-11-23 14:08:13,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:08:13,475 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:13,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:13,499 INFO L225 Difference]: With dead ends: 6108 [2022-11-23 14:08:13,499 INFO L226 Difference]: Without dead ends: 6108 [2022-11-23 14:08:13,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:08:13,500 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 78 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:13,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 114 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 14:08:13,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6108 states. [2022-11-23 14:08:13,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6108 to 5788. [2022-11-23 14:08:13,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5788 states, 5787 states have (on average 3.0589251771211337) internal successors, (17702), 5787 states have internal predecessors, (17702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:13,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5788 states to 5788 states and 17702 transitions. [2022-11-23 14:08:13,669 INFO L78 Accepts]: Start accepts. Automaton has 5788 states and 17702 transitions. Word has length 43 [2022-11-23 14:08:13,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:13,670 INFO L495 AbstractCegarLoop]: Abstraction has 5788 states and 17702 transitions. [2022-11-23 14:08:13,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:13,671 INFO L276 IsEmpty]: Start isEmpty. Operand 5788 states and 17702 transitions. [2022-11-23 14:08:13,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:13,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:13,691 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:13,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-23 14:08:13,692 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:13,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:13,694 INFO L85 PathProgramCache]: Analyzing trace with hash -383835857, now seen corresponding path program 10 times [2022-11-23 14:08:13,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:13,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364050697] [2022-11-23 14:08:13,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:13,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:14,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:14,559 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:14,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364050697] [2022-11-23 14:08:14,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364050697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:14,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:14,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:08:14,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691279369] [2022-11-23 14:08:14,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:14,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:08:14,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:14,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:08:14,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:08:14,561 INFO L87 Difference]: Start difference. First operand 5788 states and 17702 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:15,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:15,260 INFO L93 Difference]: Finished difference Result 7424 states and 22542 transitions. [2022-11-23 14:08:15,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:08:15,261 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:15,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:15,297 INFO L225 Difference]: With dead ends: 7424 [2022-11-23 14:08:15,297 INFO L226 Difference]: Without dead ends: 7136 [2022-11-23 14:08:15,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:08:15,298 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 98 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:15,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 146 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 829 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 14:08:15,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7136 states. [2022-11-23 14:08:15,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7136 to 5716. [2022-11-23 14:08:15,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5716 states, 5715 states have (on average 3.054068241469816) internal successors, (17454), 5715 states have internal predecessors, (17454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:15,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5716 states to 5716 states and 17454 transitions. [2022-11-23 14:08:15,491 INFO L78 Accepts]: Start accepts. Automaton has 5716 states and 17454 transitions. Word has length 43 [2022-11-23 14:08:15,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:15,493 INFO L495 AbstractCegarLoop]: Abstraction has 5716 states and 17454 transitions. [2022-11-23 14:08:15,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:15,493 INFO L276 IsEmpty]: Start isEmpty. Operand 5716 states and 17454 transitions. [2022-11-23 14:08:15,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:15,512 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:15,512 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:15,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-23 14:08:15,513 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:15,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:15,513 INFO L85 PathProgramCache]: Analyzing trace with hash -123317107, now seen corresponding path program 11 times [2022-11-23 14:08:15,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:15,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353813215] [2022-11-23 14:08:15,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:15,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:16,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:16,096 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:16,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353813215] [2022-11-23 14:08:16,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353813215] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:16,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:16,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:08:16,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222185713] [2022-11-23 14:08:16,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:16,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:08:16,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:16,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:08:16,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:08:16,099 INFO L87 Difference]: Start difference. First operand 5716 states and 17454 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:16,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:16,569 INFO L93 Difference]: Finished difference Result 6194 states and 18525 transitions. [2022-11-23 14:08:16,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:08:16,569 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:16,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:16,592 INFO L225 Difference]: With dead ends: 6194 [2022-11-23 14:08:16,592 INFO L226 Difference]: Without dead ends: 5958 [2022-11-23 14:08:16,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:08:16,594 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 86 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:16,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 87 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:08:16,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5958 states. [2022-11-23 14:08:16,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5958 to 5660. [2022-11-23 14:08:16,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5660 states, 5659 states have (on average 3.050715674147376) internal successors, (17264), 5659 states have internal predecessors, (17264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:16,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5660 states to 5660 states and 17264 transitions. [2022-11-23 14:08:16,764 INFO L78 Accepts]: Start accepts. Automaton has 5660 states and 17264 transitions. Word has length 43 [2022-11-23 14:08:16,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:16,765 INFO L495 AbstractCegarLoop]: Abstraction has 5660 states and 17264 transitions. [2022-11-23 14:08:16,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:16,765 INFO L276 IsEmpty]: Start isEmpty. Operand 5660 states and 17264 transitions. [2022-11-23 14:08:16,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:16,780 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:16,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:16,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-23 14:08:16,782 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:16,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:16,783 INFO L85 PathProgramCache]: Analyzing trace with hash 107040365, now seen corresponding path program 12 times [2022-11-23 14:08:16,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:16,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394273240] [2022-11-23 14:08:16,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:16,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:16,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:17,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:17,590 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:17,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394273240] [2022-11-23 14:08:17,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394273240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:17,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:17,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:08:17,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860137363] [2022-11-23 14:08:17,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:17,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:08:17,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:17,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:08:17,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:08:17,593 INFO L87 Difference]: Start difference. First operand 5660 states and 17264 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:18,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:18,383 INFO L93 Difference]: Finished difference Result 8664 states and 26350 transitions. [2022-11-23 14:08:18,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 14:08:18,384 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:18,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:18,418 INFO L225 Difference]: With dead ends: 8664 [2022-11-23 14:08:18,418 INFO L226 Difference]: Without dead ends: 8132 [2022-11-23 14:08:18,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:08:18,419 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 122 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 1024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:18,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 158 Invalid, 1024 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 993 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-23 14:08:18,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8132 states. [2022-11-23 14:08:18,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8132 to 6490. [2022-11-23 14:08:18,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6490 states, 6489 states have (on average 3.0527045769764216) internal successors, (19809), 6489 states have internal predecessors, (19809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:18,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6490 states to 6490 states and 19809 transitions. [2022-11-23 14:08:18,625 INFO L78 Accepts]: Start accepts. Automaton has 6490 states and 19809 transitions. Word has length 43 [2022-11-23 14:08:18,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:18,626 INFO L495 AbstractCegarLoop]: Abstraction has 6490 states and 19809 transitions. [2022-11-23 14:08:18,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:18,626 INFO L276 IsEmpty]: Start isEmpty. Operand 6490 states and 19809 transitions. [2022-11-23 14:08:18,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:18,648 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:18,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:18,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-23 14:08:18,649 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:18,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:18,650 INFO L85 PathProgramCache]: Analyzing trace with hash -184029463, now seen corresponding path program 13 times [2022-11-23 14:08:18,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:18,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609737923] [2022-11-23 14:08:18,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:18,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:18,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:19,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:19,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:19,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609737923] [2022-11-23 14:08:19,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609737923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:19,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:19,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:08:19,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859637931] [2022-11-23 14:08:19,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:19,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:08:19,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:19,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:08:19,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:08:19,497 INFO L87 Difference]: Start difference. First operand 6490 states and 19809 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:20,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:20,171 INFO L93 Difference]: Finished difference Result 9280 states and 28152 transitions. [2022-11-23 14:08:20,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 14:08:20,172 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:20,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:20,205 INFO L225 Difference]: With dead ends: 9280 [2022-11-23 14:08:20,206 INFO L226 Difference]: Without dead ends: 8662 [2022-11-23 14:08:20,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:08:20,207 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 135 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:20,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 124 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 14:08:20,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8662 states. [2022-11-23 14:08:20,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8662 to 6354. [2022-11-23 14:08:20,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6354 states, 6353 states have (on average 3.0521013694317647) internal successors, (19390), 6353 states have internal predecessors, (19390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:20,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6354 states to 6354 states and 19390 transitions. [2022-11-23 14:08:20,406 INFO L78 Accepts]: Start accepts. Automaton has 6354 states and 19390 transitions. Word has length 43 [2022-11-23 14:08:20,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:20,406 INFO L495 AbstractCegarLoop]: Abstraction has 6354 states and 19390 transitions. [2022-11-23 14:08:20,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:20,407 INFO L276 IsEmpty]: Start isEmpty. Operand 6354 states and 19390 transitions. [2022-11-23 14:08:20,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:20,422 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:20,422 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:20,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-23 14:08:20,423 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:20,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:20,424 INFO L85 PathProgramCache]: Analyzing trace with hash 152330313, now seen corresponding path program 14 times [2022-11-23 14:08:20,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:20,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172337984] [2022-11-23 14:08:20,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:20,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:20,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:21,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:21,112 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:21,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172337984] [2022-11-23 14:08:21,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172337984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:21,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:21,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:08:21,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724941080] [2022-11-23 14:08:21,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:21,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:08:21,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:21,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:08:21,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:08:21,118 INFO L87 Difference]: Start difference. First operand 6354 states and 19390 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:21,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:21,659 INFO L93 Difference]: Finished difference Result 6466 states and 19654 transitions. [2022-11-23 14:08:21,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:08:21,659 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:21,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:21,684 INFO L225 Difference]: With dead ends: 6466 [2022-11-23 14:08:21,684 INFO L226 Difference]: Without dead ends: 6270 [2022-11-23 14:08:21,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:08:21,686 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 60 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:21,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 123 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 14:08:21,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6270 states. [2022-11-23 14:08:21,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6270 to 6270. [2022-11-23 14:08:21,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6270 states, 6269 states have (on average 3.0527994895517625) internal successors, (19138), 6269 states have internal predecessors, (19138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:21,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6270 states to 6270 states and 19138 transitions. [2022-11-23 14:08:21,919 INFO L78 Accepts]: Start accepts. Automaton has 6270 states and 19138 transitions. Word has length 43 [2022-11-23 14:08:21,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:21,921 INFO L495 AbstractCegarLoop]: Abstraction has 6270 states and 19138 transitions. [2022-11-23 14:08:21,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:21,921 INFO L276 IsEmpty]: Start isEmpty. Operand 6270 states and 19138 transitions. [2022-11-23 14:08:21,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:21,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:21,937 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:21,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-23 14:08:21,937 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:21,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:21,938 INFO L85 PathProgramCache]: Analyzing trace with hash 865617501, now seen corresponding path program 15 times [2022-11-23 14:08:21,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:21,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131545909] [2022-11-23 14:08:21,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:21,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:21,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:22,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:22,642 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:22,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131545909] [2022-11-23 14:08:22,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131545909] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:22,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:22,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-23 14:08:22,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029144532] [2022-11-23 14:08:22,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:22,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 14:08:22,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:22,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 14:08:22,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:08:22,644 INFO L87 Difference]: Start difference. First operand 6270 states and 19138 transitions. Second operand has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:23,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:23,324 INFO L93 Difference]: Finished difference Result 6652 states and 20181 transitions. [2022-11-23 14:08:23,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 14:08:23,325 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:23,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:23,345 INFO L225 Difference]: With dead ends: 6652 [2022-11-23 14:08:23,346 INFO L226 Difference]: Without dead ends: 6328 [2022-11-23 14:08:23,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:08:23,347 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 82 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:23,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 125 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 894 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 14:08:23,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6328 states. [2022-11-23 14:08:23,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6328 to 6182. [2022-11-23 14:08:23,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6182 states, 6181 states have (on average 3.0541983497815886) internal successors, (18878), 6181 states have internal predecessors, (18878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:23,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6182 states to 6182 states and 18878 transitions. [2022-11-23 14:08:23,518 INFO L78 Accepts]: Start accepts. Automaton has 6182 states and 18878 transitions. Word has length 43 [2022-11-23 14:08:23,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:23,519 INFO L495 AbstractCegarLoop]: Abstraction has 6182 states and 18878 transitions. [2022-11-23 14:08:23,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:23,519 INFO L276 IsEmpty]: Start isEmpty. Operand 6182 states and 18878 transitions. [2022-11-23 14:08:23,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:23,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:23,535 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:23,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-23 14:08:23,535 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:23,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:23,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1379153489, now seen corresponding path program 16 times [2022-11-23 14:08:23,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:23,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572202881] [2022-11-23 14:08:23,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:23,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:23,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:24,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:24,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:24,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572202881] [2022-11-23 14:08:24,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572202881] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:24,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:24,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 14:08:24,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654165709] [2022-11-23 14:08:24,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:24,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 14:08:24,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:24,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 14:08:24,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-11-23 14:08:24,266 INFO L87 Difference]: Start difference. First operand 6182 states and 18878 transitions. Second operand has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 11 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:25,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:25,171 INFO L93 Difference]: Finished difference Result 8730 states and 26362 transitions. [2022-11-23 14:08:25,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 14:08:25,172 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 11 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:25,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:25,198 INFO L225 Difference]: With dead ends: 8730 [2022-11-23 14:08:25,198 INFO L226 Difference]: Without dead ends: 8290 [2022-11-23 14:08:25,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-23 14:08:25,200 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 133 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:25,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 207 Invalid, 1206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1181 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-23 14:08:25,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8290 states. [2022-11-23 14:08:25,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8290 to 6100. [2022-11-23 14:08:25,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6100 states, 6099 states have (on average 3.0505000819806525) internal successors, (18605), 6099 states have internal predecessors, (18605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:25,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6100 states to 6100 states and 18605 transitions. [2022-11-23 14:08:25,398 INFO L78 Accepts]: Start accepts. Automaton has 6100 states and 18605 transitions. Word has length 43 [2022-11-23 14:08:25,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:25,399 INFO L495 AbstractCegarLoop]: Abstraction has 6100 states and 18605 transitions. [2022-11-23 14:08:25,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 11 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:25,399 INFO L276 IsEmpty]: Start isEmpty. Operand 6100 states and 18605 transitions. [2022-11-23 14:08:25,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:25,413 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:25,414 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:25,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-23 14:08:25,414 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:25,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:25,415 INFO L85 PathProgramCache]: Analyzing trace with hash 232865745, now seen corresponding path program 17 times [2022-11-23 14:08:25,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:25,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207458750] [2022-11-23 14:08:25,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:25,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:26,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:26,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:26,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207458750] [2022-11-23 14:08:26,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207458750] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:26,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:26,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 14:08:26,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81500726] [2022-11-23 14:08:26,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:26,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:08:26,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:26,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:08:26,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:08:26,074 INFO L87 Difference]: Start difference. First operand 6100 states and 18605 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:26,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:26,689 INFO L93 Difference]: Finished difference Result 11830 states and 36419 transitions. [2022-11-23 14:08:26,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 14:08:26,690 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:26,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:26,735 INFO L225 Difference]: With dead ends: 11830 [2022-11-23 14:08:26,735 INFO L226 Difference]: Without dead ends: 11538 [2022-11-23 14:08:26,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:08:26,736 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 319 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:26,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 92 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 14:08:26,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11538 states. [2022-11-23 14:08:27,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11538 to 6424. [2022-11-23 14:08:27,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6424 states, 6423 states have (on average 3.0727074575743423) internal successors, (19736), 6423 states have internal predecessors, (19736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:27,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6424 states to 6424 states and 19736 transitions. [2022-11-23 14:08:27,093 INFO L78 Accepts]: Start accepts. Automaton has 6424 states and 19736 transitions. Word has length 43 [2022-11-23 14:08:27,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:27,093 INFO L495 AbstractCegarLoop]: Abstraction has 6424 states and 19736 transitions. [2022-11-23 14:08:27,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:27,094 INFO L276 IsEmpty]: Start isEmpty. Operand 6424 states and 19736 transitions. [2022-11-23 14:08:27,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:27,116 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:27,116 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:27,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-23 14:08:27,117 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:27,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:27,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1051837689, now seen corresponding path program 18 times [2022-11-23 14:08:27,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:27,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009196391] [2022-11-23 14:08:27,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:27,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:27,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:27,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:27,564 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:27,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009196391] [2022-11-23 14:08:27,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009196391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:27,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:27,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:08:27,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163884144] [2022-11-23 14:08:27,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:27,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:08:27,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:27,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:08:27,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:08:27,567 INFO L87 Difference]: Start difference. First operand 6424 states and 19736 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:28,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:28,312 INFO L93 Difference]: Finished difference Result 7183 states and 21593 transitions. [2022-11-23 14:08:28,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 14:08:28,312 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:28,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:28,331 INFO L225 Difference]: With dead ends: 7183 [2022-11-23 14:08:28,336 INFO L226 Difference]: Without dead ends: 6840 [2022-11-23 14:08:28,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:08:28,337 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 195 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:28,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 73 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 14:08:28,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6840 states. [2022-11-23 14:08:28,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6840 to 6376. [2022-11-23 14:08:28,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6376 states, 6375 states have (on average 3.0591372549019606) internal successors, (19502), 6375 states have internal predecessors, (19502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:28,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6376 states to 6376 states and 19502 transitions. [2022-11-23 14:08:28,532 INFO L78 Accepts]: Start accepts. Automaton has 6376 states and 19502 transitions. Word has length 43 [2022-11-23 14:08:28,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:28,533 INFO L495 AbstractCegarLoop]: Abstraction has 6376 states and 19502 transitions. [2022-11-23 14:08:28,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:28,533 INFO L276 IsEmpty]: Start isEmpty. Operand 6376 states and 19502 transitions. [2022-11-23 14:08:28,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:28,553 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:28,553 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:28,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-23 14:08:28,554 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:28,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:28,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1164476137, now seen corresponding path program 19 times [2022-11-23 14:08:28,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:28,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103148465] [2022-11-23 14:08:28,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:28,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:29,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:29,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:29,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103148465] [2022-11-23 14:08:29,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103148465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:29,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:29,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:08:29,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915094481] [2022-11-23 14:08:29,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:29,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:08:29,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:29,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:08:29,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:08:29,679 INFO L87 Difference]: Start difference. First operand 6376 states and 19502 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:30,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:30,269 INFO L93 Difference]: Finished difference Result 8464 states and 25294 transitions. [2022-11-23 14:08:30,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 14:08:30,269 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:30,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:30,304 INFO L225 Difference]: With dead ends: 8464 [2022-11-23 14:08:30,305 INFO L226 Difference]: Without dead ends: 7984 [2022-11-23 14:08:30,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-23 14:08:30,307 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 192 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:30,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 112 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 14:08:30,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7984 states. [2022-11-23 14:08:30,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7984 to 6934. [2022-11-23 14:08:30,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6934 states, 6933 states have (on average 3.061445261791432) internal successors, (21225), 6933 states have internal predecessors, (21225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:30,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6934 states to 6934 states and 21225 transitions. [2022-11-23 14:08:30,518 INFO L78 Accepts]: Start accepts. Automaton has 6934 states and 21225 transitions. Word has length 43 [2022-11-23 14:08:30,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:30,518 INFO L495 AbstractCegarLoop]: Abstraction has 6934 states and 21225 transitions. [2022-11-23 14:08:30,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:30,519 INFO L276 IsEmpty]: Start isEmpty. Operand 6934 states and 21225 transitions. [2022-11-23 14:08:30,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:30,538 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:30,538 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:30,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-23 14:08:30,538 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:30,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:30,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1611994375, now seen corresponding path program 20 times [2022-11-23 14:08:30,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:30,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527735431] [2022-11-23 14:08:30,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:30,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:30,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:31,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:31,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:31,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527735431] [2022-11-23 14:08:31,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527735431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:31,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:31,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 14:08:31,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381705787] [2022-11-23 14:08:31,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:31,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:08:31,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:31,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:08:31,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:08:31,182 INFO L87 Difference]: Start difference. First operand 6934 states and 21225 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:31,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:31,762 INFO L93 Difference]: Finished difference Result 7636 states and 23238 transitions. [2022-11-23 14:08:31,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:08:31,763 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:31,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:31,786 INFO L225 Difference]: With dead ends: 7636 [2022-11-23 14:08:31,787 INFO L226 Difference]: Without dead ends: 7408 [2022-11-23 14:08:31,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:08:31,788 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 59 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:31,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 110 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 14:08:31,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7408 states. [2022-11-23 14:08:31,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7408 to 7246. [2022-11-23 14:08:31,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7246 states, 7245 states have (on average 3.0541062801932366) internal successors, (22127), 7245 states have internal predecessors, (22127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:32,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7246 states to 7246 states and 22127 transitions. [2022-11-23 14:08:32,001 INFO L78 Accepts]: Start accepts. Automaton has 7246 states and 22127 transitions. Word has length 43 [2022-11-23 14:08:32,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:32,001 INFO L495 AbstractCegarLoop]: Abstraction has 7246 states and 22127 transitions. [2022-11-23 14:08:32,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:32,002 INFO L276 IsEmpty]: Start isEmpty. Operand 7246 states and 22127 transitions. [2022-11-23 14:08:32,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:32,020 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:32,020 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:32,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-23 14:08:32,023 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:32,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:32,024 INFO L85 PathProgramCache]: Analyzing trace with hash 351688775, now seen corresponding path program 21 times [2022-11-23 14:08:32,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:32,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99917632] [2022-11-23 14:08:32,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:32,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:32,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:32,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:32,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99917632] [2022-11-23 14:08:32,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99917632] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:32,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:32,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 14:08:32,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109397772] [2022-11-23 14:08:32,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:32,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:08:32,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:32,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:08:32,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:08:32,674 INFO L87 Difference]: Start difference. First operand 7246 states and 22127 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:33,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:33,227 INFO L93 Difference]: Finished difference Result 7662 states and 23225 transitions. [2022-11-23 14:08:33,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:08:33,228 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:33,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:33,252 INFO L225 Difference]: With dead ends: 7662 [2022-11-23 14:08:33,252 INFO L226 Difference]: Without dead ends: 7400 [2022-11-23 14:08:33,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:08:33,253 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 59 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:33,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 110 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 14:08:33,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7400 states. [2022-11-23 14:08:33,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7400 to 7212. [2022-11-23 14:08:33,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7212 states, 7211 states have (on average 3.0481209263625018) internal successors, (21980), 7211 states have internal predecessors, (21980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:33,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7212 states to 7212 states and 21980 transitions. [2022-11-23 14:08:33,460 INFO L78 Accepts]: Start accepts. Automaton has 7212 states and 21980 transitions. Word has length 43 [2022-11-23 14:08:33,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:33,461 INFO L495 AbstractCegarLoop]: Abstraction has 7212 states and 21980 transitions. [2022-11-23 14:08:33,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:33,461 INFO L276 IsEmpty]: Start isEmpty. Operand 7212 states and 21980 transitions. [2022-11-23 14:08:33,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:33,478 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:33,478 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:33,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-23 14:08:33,479 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:33,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:33,479 INFO L85 PathProgramCache]: Analyzing trace with hash 121290529, now seen corresponding path program 22 times [2022-11-23 14:08:33,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:33,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290355305] [2022-11-23 14:08:33,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:33,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:33,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:34,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:34,205 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:34,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290355305] [2022-11-23 14:08:34,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290355305] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:34,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:34,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-23 14:08:34,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208658428] [2022-11-23 14:08:34,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:34,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 14:08:34,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:34,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 14:08:34,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:08:34,207 INFO L87 Difference]: Start difference. First operand 7212 states and 21980 transitions. Second operand has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:34,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:34,823 INFO L93 Difference]: Finished difference Result 8404 states and 25638 transitions. [2022-11-23 14:08:34,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 14:08:34,824 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:34,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:34,849 INFO L225 Difference]: With dead ends: 8404 [2022-11-23 14:08:34,849 INFO L226 Difference]: Without dead ends: 8068 [2022-11-23 14:08:34,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-23 14:08:34,850 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 132 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:34,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 115 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 14:08:34,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8068 states. [2022-11-23 14:08:35,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8068 to 7306. [2022-11-23 14:08:35,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7306 states, 7305 states have (on average 3.05160848733744) internal successors, (22292), 7305 states have internal predecessors, (22292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:35,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7306 states to 7306 states and 22292 transitions. [2022-11-23 14:08:35,064 INFO L78 Accepts]: Start accepts. Automaton has 7306 states and 22292 transitions. Word has length 43 [2022-11-23 14:08:35,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:35,065 INFO L495 AbstractCegarLoop]: Abstraction has 7306 states and 22292 transitions. [2022-11-23 14:08:35,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:35,065 INFO L276 IsEmpty]: Start isEmpty. Operand 7306 states and 22292 transitions. [2022-11-23 14:08:35,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:35,082 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:35,083 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:35,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-23 14:08:35,083 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:35,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:35,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1812898871, now seen corresponding path program 23 times [2022-11-23 14:08:35,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:35,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966399439] [2022-11-23 14:08:35,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:35,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:35,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:35,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:35,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:35,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966399439] [2022-11-23 14:08:35,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966399439] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:35,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:35,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:08:35,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858718550] [2022-11-23 14:08:35,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:35,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:08:35,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:35,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:08:35,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:08:35,213 INFO L87 Difference]: Start difference. First operand 7306 states and 22292 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:35,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:35,386 INFO L93 Difference]: Finished difference Result 6886 states and 20705 transitions. [2022-11-23 14:08:35,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:08:35,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:35,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:35,406 INFO L225 Difference]: With dead ends: 6886 [2022-11-23 14:08:35,406 INFO L226 Difference]: Without dead ends: 6850 [2022-11-23 14:08:35,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:08:35,407 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 19 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:35,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 23 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:08:35,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6850 states. [2022-11-23 14:08:35,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6850 to 6838. [2022-11-23 14:08:35,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6838 states, 6837 states have (on average 3.012724879333041) internal successors, (20598), 6837 states have internal predecessors, (20598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:35,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6838 states to 6838 states and 20598 transitions. [2022-11-23 14:08:35,588 INFO L78 Accepts]: Start accepts. Automaton has 6838 states and 20598 transitions. Word has length 43 [2022-11-23 14:08:35,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:35,588 INFO L495 AbstractCegarLoop]: Abstraction has 6838 states and 20598 transitions. [2022-11-23 14:08:35,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:35,589 INFO L276 IsEmpty]: Start isEmpty. Operand 6838 states and 20598 transitions. [2022-11-23 14:08:35,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:35,605 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:35,605 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:35,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-23 14:08:35,606 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:35,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:35,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1361691513, now seen corresponding path program 24 times [2022-11-23 14:08:35,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:35,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146853972] [2022-11-23 14:08:35,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:35,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:35,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:36,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:36,200 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:36,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146853972] [2022-11-23 14:08:36,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146853972] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:36,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:36,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 14:08:36,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918592347] [2022-11-23 14:08:36,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:36,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 14:08:36,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:36,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 14:08:36,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:08:36,204 INFO L87 Difference]: Start difference. First operand 6838 states and 20598 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:36,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:36,547 INFO L93 Difference]: Finished difference Result 8922 states and 27135 transitions. [2022-11-23 14:08:36,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:08:36,548 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:36,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:36,575 INFO L225 Difference]: With dead ends: 8922 [2022-11-23 14:08:36,575 INFO L226 Difference]: Without dead ends: 8778 [2022-11-23 14:08:36,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:08:36,576 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 56 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:36,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 56 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:08:36,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8778 states. [2022-11-23 14:08:36,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8778 to 7022. [2022-11-23 14:08:36,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7022 states, 7021 states have (on average 3.01296111665005) internal successors, (21154), 7021 states have internal predecessors, (21154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:36,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7022 states to 7022 states and 21154 transitions. [2022-11-23 14:08:36,787 INFO L78 Accepts]: Start accepts. Automaton has 7022 states and 21154 transitions. Word has length 43 [2022-11-23 14:08:36,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:36,788 INFO L495 AbstractCegarLoop]: Abstraction has 7022 states and 21154 transitions. [2022-11-23 14:08:36,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:36,789 INFO L276 IsEmpty]: Start isEmpty. Operand 7022 states and 21154 transitions. [2022-11-23 14:08:36,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:36,805 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:36,805 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:36,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-23 14:08:36,806 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:36,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:36,806 INFO L85 PathProgramCache]: Analyzing trace with hash 94981799, now seen corresponding path program 25 times [2022-11-23 14:08:36,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:36,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314220057] [2022-11-23 14:08:36,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:36,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:36,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:36,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:36,941 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:36,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314220057] [2022-11-23 14:08:36,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314220057] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:36,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:36,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:08:36,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246098549] [2022-11-23 14:08:36,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:36,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:08:36,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:36,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:08:36,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:08:36,945 INFO L87 Difference]: Start difference. First operand 7022 states and 21154 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:37,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:37,078 INFO L93 Difference]: Finished difference Result 6384 states and 18894 transitions. [2022-11-23 14:08:37,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:08:37,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:37,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:37,098 INFO L225 Difference]: With dead ends: 6384 [2022-11-23 14:08:37,098 INFO L226 Difference]: Without dead ends: 6344 [2022-11-23 14:08:37,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:08:37,099 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:37,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 23 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:08:37,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6344 states. [2022-11-23 14:08:37,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6344 to 6290. [2022-11-23 14:08:37,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6290 states, 6289 states have (on average 2.967085387183972) internal successors, (18660), 6289 states have internal predecessors, (18660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:37,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6290 states to 6290 states and 18660 transitions. [2022-11-23 14:08:37,266 INFO L78 Accepts]: Start accepts. Automaton has 6290 states and 18660 transitions. Word has length 43 [2022-11-23 14:08:37,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:37,267 INFO L495 AbstractCegarLoop]: Abstraction has 6290 states and 18660 transitions. [2022-11-23 14:08:37,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:37,268 INFO L276 IsEmpty]: Start isEmpty. Operand 6290 states and 18660 transitions. [2022-11-23 14:08:37,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:37,283 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:37,283 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:37,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-23 14:08:37,284 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:37,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:37,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1614820575, now seen corresponding path program 26 times [2022-11-23 14:08:37,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:37,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610645193] [2022-11-23 14:08:37,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:37,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:37,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:37,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:37,789 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:37,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610645193] [2022-11-23 14:08:37,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610645193] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:37,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:37,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:08:37,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075059470] [2022-11-23 14:08:37,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:37,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:08:37,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:37,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:08:37,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:08:37,792 INFO L87 Difference]: Start difference. First operand 6290 states and 18660 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:38,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:38,220 INFO L93 Difference]: Finished difference Result 7744 states and 23101 transitions. [2022-11-23 14:08:38,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:08:38,220 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:38,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:38,244 INFO L225 Difference]: With dead ends: 7744 [2022-11-23 14:08:38,244 INFO L226 Difference]: Without dead ends: 7512 [2022-11-23 14:08:38,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:08:38,245 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 53 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:38,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 78 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:08:38,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7512 states. [2022-11-23 14:08:38,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7512 to 6186. [2022-11-23 14:08:38,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6186 states, 6185 states have (on average 2.9647534357316085) internal successors, (18337), 6185 states have internal predecessors, (18337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:38,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6186 states to 6186 states and 18337 transitions. [2022-11-23 14:08:38,425 INFO L78 Accepts]: Start accepts. Automaton has 6186 states and 18337 transitions. Word has length 43 [2022-11-23 14:08:38,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:38,425 INFO L495 AbstractCegarLoop]: Abstraction has 6186 states and 18337 transitions. [2022-11-23 14:08:38,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:38,426 INFO L276 IsEmpty]: Start isEmpty. Operand 6186 states and 18337 transitions. [2022-11-23 14:08:38,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:38,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:38,441 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:38,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-23 14:08:38,442 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:38,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:38,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1378845329, now seen corresponding path program 27 times [2022-11-23 14:08:38,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:38,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562067941] [2022-11-23 14:08:38,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:38,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:39,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:39,096 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:39,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562067941] [2022-11-23 14:08:39,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562067941] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:39,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:39,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:08:39,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656470060] [2022-11-23 14:08:39,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:39,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:08:39,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:39,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:08:39,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:08:39,100 INFO L87 Difference]: Start difference. First operand 6186 states and 18337 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:39,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:39,679 INFO L93 Difference]: Finished difference Result 7626 states and 22244 transitions. [2022-11-23 14:08:39,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 14:08:39,680 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:39,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:39,701 INFO L225 Difference]: With dead ends: 7626 [2022-11-23 14:08:39,701 INFO L226 Difference]: Without dead ends: 7518 [2022-11-23 14:08:39,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-23 14:08:39,702 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 219 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:39,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 70 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 14:08:39,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7518 states. [2022-11-23 14:08:39,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7518 to 6194. [2022-11-23 14:08:39,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6194 states, 6193 states have (on average 2.963184240271274) internal successors, (18351), 6193 states have internal predecessors, (18351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:39,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6194 states to 6194 states and 18351 transitions. [2022-11-23 14:08:39,868 INFO L78 Accepts]: Start accepts. Automaton has 6194 states and 18351 transitions. Word has length 43 [2022-11-23 14:08:39,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:39,868 INFO L495 AbstractCegarLoop]: Abstraction has 6194 states and 18351 transitions. [2022-11-23 14:08:39,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:39,869 INFO L276 IsEmpty]: Start isEmpty. Operand 6194 states and 18351 transitions. [2022-11-23 14:08:39,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:39,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:39,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:39,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-23 14:08:39,886 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:39,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:39,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1087775501, now seen corresponding path program 28 times [2022-11-23 14:08:39,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:39,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600692615] [2022-11-23 14:08:39,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:39,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:39,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:40,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:40,906 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:40,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600692615] [2022-11-23 14:08:40,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600692615] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:40,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:40,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:08:40,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359165312] [2022-11-23 14:08:40,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:40,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:08:40,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:40,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:08:40,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:08:40,907 INFO L87 Difference]: Start difference. First operand 6194 states and 18351 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:41,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:41,426 INFO L93 Difference]: Finished difference Result 6464 states and 19020 transitions. [2022-11-23 14:08:41,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:08:41,427 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:41,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:41,445 INFO L225 Difference]: With dead ends: 6464 [2022-11-23 14:08:41,446 INFO L226 Difference]: Without dead ends: 6348 [2022-11-23 14:08:41,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:08:41,447 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 60 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:41,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 68 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 14:08:41,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6348 states. [2022-11-23 14:08:41,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6348 to 6186. [2022-11-23 14:08:41,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6186 states, 6185 states have (on average 2.9634599838318514) internal successors, (18329), 6185 states have internal predecessors, (18329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:41,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6186 states to 6186 states and 18329 transitions. [2022-11-23 14:08:41,607 INFO L78 Accepts]: Start accepts. Automaton has 6186 states and 18329 transitions. Word has length 43 [2022-11-23 14:08:41,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:41,608 INFO L495 AbstractCegarLoop]: Abstraction has 6186 states and 18329 transitions. [2022-11-23 14:08:41,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:41,608 INFO L276 IsEmpty]: Start isEmpty. Operand 6186 states and 18329 transitions. [2022-11-23 14:08:41,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:41,623 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:41,623 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:41,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-23 14:08:41,623 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:41,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:41,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1731193875, now seen corresponding path program 29 times [2022-11-23 14:08:41,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:41,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243988717] [2022-11-23 14:08:41,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:41,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:41,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:42,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:42,498 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:42,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243988717] [2022-11-23 14:08:42,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243988717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:42,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:42,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:08:42,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469308486] [2022-11-23 14:08:42,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:42,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:08:42,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:42,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:08:42,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:08:42,501 INFO L87 Difference]: Start difference. First operand 6186 states and 18329 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:43,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:43,257 INFO L93 Difference]: Finished difference Result 9304 states and 27550 transitions. [2022-11-23 14:08:43,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 14:08:43,258 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:43,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:43,284 INFO L225 Difference]: With dead ends: 9304 [2022-11-23 14:08:43,284 INFO L226 Difference]: Without dead ends: 8956 [2022-11-23 14:08:43,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:08:43,285 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 122 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:43,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 156 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 951 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-23 14:08:43,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8956 states. [2022-11-23 14:08:43,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8956 to 6296. [2022-11-23 14:08:43,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6296 states, 6295 states have (on average 2.979825258141382) internal successors, (18758), 6295 states have internal predecessors, (18758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:43,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6296 states to 6296 states and 18758 transitions. [2022-11-23 14:08:43,471 INFO L78 Accepts]: Start accepts. Automaton has 6296 states and 18758 transitions. Word has length 43 [2022-11-23 14:08:43,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:43,471 INFO L495 AbstractCegarLoop]: Abstraction has 6296 states and 18758 transitions. [2022-11-23 14:08:43,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:43,472 INFO L276 IsEmpty]: Start isEmpty. Operand 6296 states and 18758 transitions. [2022-11-23 14:08:43,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:43,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:43,487 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:43,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-23 14:08:43,487 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:43,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:43,488 INFO L85 PathProgramCache]: Analyzing trace with hash -460972355, now seen corresponding path program 30 times [2022-11-23 14:08:43,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:43,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521189089] [2022-11-23 14:08:43,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:43,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:43,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:44,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:44,092 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:44,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521189089] [2022-11-23 14:08:44,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521189089] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:44,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:44,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:08:44,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615550575] [2022-11-23 14:08:44,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:44,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:08:44,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:44,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:08:44,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:08:44,094 INFO L87 Difference]: Start difference. First operand 6296 states and 18758 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:44,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:44,459 INFO L93 Difference]: Finished difference Result 6416 states and 19040 transitions. [2022-11-23 14:08:44,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:08:44,459 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:44,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:44,473 INFO L225 Difference]: With dead ends: 6416 [2022-11-23 14:08:44,473 INFO L226 Difference]: Without dead ends: 6206 [2022-11-23 14:08:44,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:08:44,474 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 55 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:44,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 84 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:08:44,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6206 states. [2022-11-23 14:08:44,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6206 to 6206. [2022-11-23 14:08:44,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6206 states, 6205 states have (on average 2.9925866236905723) internal successors, (18569), 6205 states have internal predecessors, (18569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:44,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6206 states to 6206 states and 18569 transitions. [2022-11-23 14:08:44,595 INFO L78 Accepts]: Start accepts. Automaton has 6206 states and 18569 transitions. Word has length 43 [2022-11-23 14:08:44,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:44,596 INFO L495 AbstractCegarLoop]: Abstraction has 6206 states and 18569 transitions. [2022-11-23 14:08:44,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:44,596 INFO L276 IsEmpty]: Start isEmpty. Operand 6206 states and 18569 transitions. [2022-11-23 14:08:44,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:44,613 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:44,613 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:44,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-23 14:08:44,613 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:44,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:44,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1611771551, now seen corresponding path program 31 times [2022-11-23 14:08:44,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:44,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760536379] [2022-11-23 14:08:44,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:44,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:45,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:45,157 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:45,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760536379] [2022-11-23 14:08:45,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760536379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:45,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:45,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 14:08:45,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265603216] [2022-11-23 14:08:45,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:45,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 14:08:45,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:45,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 14:08:45,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:08:45,162 INFO L87 Difference]: Start difference. First operand 6206 states and 18569 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:45,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:45,572 INFO L93 Difference]: Finished difference Result 7274 states and 21563 transitions. [2022-11-23 14:08:45,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:08:45,572 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:45,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:45,587 INFO L225 Difference]: With dead ends: 7274 [2022-11-23 14:08:45,587 INFO L226 Difference]: Without dead ends: 6726 [2022-11-23 14:08:45,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:08:45,588 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 65 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:45,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 84 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:08:45,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6726 states. [2022-11-23 14:08:45,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6726 to 6036. [2022-11-23 14:08:45,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6036 states, 6035 states have (on average 2.9955260977630487) internal successors, (18078), 6035 states have internal predecessors, (18078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:45,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6036 states to 6036 states and 18078 transitions. [2022-11-23 14:08:45,742 INFO L78 Accepts]: Start accepts. Automaton has 6036 states and 18078 transitions. Word has length 43 [2022-11-23 14:08:45,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:45,742 INFO L495 AbstractCegarLoop]: Abstraction has 6036 states and 18078 transitions. [2022-11-23 14:08:45,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:45,743 INFO L276 IsEmpty]: Start isEmpty. Operand 6036 states and 18078 transitions. [2022-11-23 14:08:45,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:45,758 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:45,758 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:45,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-23 14:08:45,758 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:45,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:45,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1698951863, now seen corresponding path program 32 times [2022-11-23 14:08:45,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:45,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300964173] [2022-11-23 14:08:45,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:45,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:46,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:46,302 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:46,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300964173] [2022-11-23 14:08:46,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300964173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:46,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:46,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:08:46,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956141482] [2022-11-23 14:08:46,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:46,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:08:46,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:46,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:08:46,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:08:46,303 INFO L87 Difference]: Start difference. First operand 6036 states and 18078 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:46,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:46,662 INFO L93 Difference]: Finished difference Result 6102 states and 18259 transitions. [2022-11-23 14:08:46,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:08:46,663 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:46,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:46,681 INFO L225 Difference]: With dead ends: 6102 [2022-11-23 14:08:46,681 INFO L226 Difference]: Without dead ends: 6002 [2022-11-23 14:08:46,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:08:46,682 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 31 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:46,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 57 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:08:46,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6002 states. [2022-11-23 14:08:46,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6002 to 5814. [2022-11-23 14:08:46,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5814 states, 5813 states have (on average 3.0077412695682093) internal successors, (17484), 5813 states have internal predecessors, (17484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:46,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5814 states to 5814 states and 17484 transitions. [2022-11-23 14:08:46,829 INFO L78 Accepts]: Start accepts. Automaton has 5814 states and 17484 transitions. Word has length 43 [2022-11-23 14:08:46,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:46,830 INFO L495 AbstractCegarLoop]: Abstraction has 5814 states and 17484 transitions. [2022-11-23 14:08:46,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:46,830 INFO L276 IsEmpty]: Start isEmpty. Operand 5814 states and 17484 transitions. [2022-11-23 14:08:46,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:46,844 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:46,844 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:46,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-23 14:08:46,845 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:46,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:46,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1829719929, now seen corresponding path program 33 times [2022-11-23 14:08:46,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:46,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355625822] [2022-11-23 14:08:46,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:46,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:46,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:47,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:47,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:47,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355625822] [2022-11-23 14:08:47,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355625822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:47,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:47,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:08:47,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914784444] [2022-11-23 14:08:47,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:47,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:08:47,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:47,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:08:47,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:08:47,177 INFO L87 Difference]: Start difference. First operand 5814 states and 17484 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:47,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:47,905 INFO L93 Difference]: Finished difference Result 6373 states and 18803 transitions. [2022-11-23 14:08:47,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 14:08:47,906 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:47,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:47,925 INFO L225 Difference]: With dead ends: 6373 [2022-11-23 14:08:47,926 INFO L226 Difference]: Without dead ends: 6276 [2022-11-23 14:08:47,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:08:47,927 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 184 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:47,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 69 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 14:08:47,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6276 states. [2022-11-23 14:08:48,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6276 to 5838. [2022-11-23 14:08:48,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5838 states, 5837 states have (on average 3.0032550967962997) internal successors, (17530), 5837 states have internal predecessors, (17530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:48,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5838 states to 5838 states and 17530 transitions. [2022-11-23 14:08:48,212 INFO L78 Accepts]: Start accepts. Automaton has 5838 states and 17530 transitions. Word has length 43 [2022-11-23 14:08:48,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:48,212 INFO L495 AbstractCegarLoop]: Abstraction has 5838 states and 17530 transitions. [2022-11-23 14:08:48,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:48,213 INFO L276 IsEmpty]: Start isEmpty. Operand 5838 states and 17530 transitions. [2022-11-23 14:08:48,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:48,226 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:48,227 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:48,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-23 14:08:48,227 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:48,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:48,228 INFO L85 PathProgramCache]: Analyzing trace with hash 197573627, now seen corresponding path program 34 times [2022-11-23 14:08:48,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:48,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302509178] [2022-11-23 14:08:48,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:48,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:49,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:49,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:49,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302509178] [2022-11-23 14:08:49,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302509178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:49,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:49,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 14:08:49,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804286915] [2022-11-23 14:08:49,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:49,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 14:08:49,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:49,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 14:08:49,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:08:49,191 INFO L87 Difference]: Start difference. First operand 5838 states and 17530 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:49,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:49,497 INFO L93 Difference]: Finished difference Result 6928 states and 20522 transitions. [2022-11-23 14:08:49,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:08:49,497 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:49,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:49,518 INFO L225 Difference]: With dead ends: 6928 [2022-11-23 14:08:49,519 INFO L226 Difference]: Without dead ends: 6648 [2022-11-23 14:08:49,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:08:49,520 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 66 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:49,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 46 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:08:49,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6648 states. [2022-11-23 14:08:49,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6648 to 6254. [2022-11-23 14:08:49,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6254 states, 6253 states have (on average 2.986726371341756) internal successors, (18676), 6253 states have internal predecessors, (18676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:49,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6254 states to 6254 states and 18676 transitions. [2022-11-23 14:08:49,691 INFO L78 Accepts]: Start accepts. Automaton has 6254 states and 18676 transitions. Word has length 43 [2022-11-23 14:08:49,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:49,692 INFO L495 AbstractCegarLoop]: Abstraction has 6254 states and 18676 transitions. [2022-11-23 14:08:49,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:49,692 INFO L276 IsEmpty]: Start isEmpty. Operand 6254 states and 18676 transitions. [2022-11-23 14:08:49,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:49,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:49,708 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:49,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-23 14:08:49,708 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:49,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:49,709 INFO L85 PathProgramCache]: Analyzing trace with hash -966606653, now seen corresponding path program 35 times [2022-11-23 14:08:49,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:49,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104992611] [2022-11-23 14:08:49,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:49,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:49,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:50,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:50,352 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:50,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104992611] [2022-11-23 14:08:50,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104992611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:50,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:50,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:08:50,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158580316] [2022-11-23 14:08:50,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:50,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:08:50,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:50,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:08:50,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:08:50,354 INFO L87 Difference]: Start difference. First operand 6254 states and 18676 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:50,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:50,620 INFO L93 Difference]: Finished difference Result 8374 states and 25106 transitions. [2022-11-23 14:08:50,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:08:50,620 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:50,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:50,645 INFO L225 Difference]: With dead ends: 8374 [2022-11-23 14:08:50,645 INFO L226 Difference]: Without dead ends: 8146 [2022-11-23 14:08:50,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:08:50,646 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 65 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:50,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 34 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:08:50,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8146 states. [2022-11-23 14:08:50,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8146 to 6416. [2022-11-23 14:08:50,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6416 states, 6415 states have (on average 2.979734996102884) internal successors, (19115), 6415 states have internal predecessors, (19115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:50,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6416 states to 6416 states and 19115 transitions. [2022-11-23 14:08:50,832 INFO L78 Accepts]: Start accepts. Automaton has 6416 states and 19115 transitions. Word has length 43 [2022-11-23 14:08:50,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:50,833 INFO L495 AbstractCegarLoop]: Abstraction has 6416 states and 19115 transitions. [2022-11-23 14:08:50,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:50,833 INFO L276 IsEmpty]: Start isEmpty. Operand 6416 states and 19115 transitions. [2022-11-23 14:08:50,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:50,848 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:50,849 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:50,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-23 14:08:50,849 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:50,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:50,850 INFO L85 PathProgramCache]: Analyzing trace with hash -40026405, now seen corresponding path program 36 times [2022-11-23 14:08:50,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:50,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714539265] [2022-11-23 14:08:50,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:50,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:50,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:50,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:50,970 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:50,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714539265] [2022-11-23 14:08:50,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714539265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:50,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:50,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:08:50,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937981962] [2022-11-23 14:08:50,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:50,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:08:50,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:50,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:08:50,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:08:50,973 INFO L87 Difference]: Start difference. First operand 6416 states and 19115 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:51,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:51,096 INFO L93 Difference]: Finished difference Result 6064 states and 17732 transitions. [2022-11-23 14:08:51,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:08:51,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:51,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:51,113 INFO L225 Difference]: With dead ends: 6064 [2022-11-23 14:08:51,114 INFO L226 Difference]: Without dead ends: 6056 [2022-11-23 14:08:51,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:08:51,115 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 13 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:51,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 23 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:08:51,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2022-11-23 14:08:51,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 6038. [2022-11-23 14:08:51,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6038 states, 6037 states have (on average 2.927447407652808) internal successors, (17673), 6037 states have internal predecessors, (17673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:51,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6038 states to 6038 states and 17673 transitions. [2022-11-23 14:08:51,271 INFO L78 Accepts]: Start accepts. Automaton has 6038 states and 17673 transitions. Word has length 43 [2022-11-23 14:08:51,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:51,271 INFO L495 AbstractCegarLoop]: Abstraction has 6038 states and 17673 transitions. [2022-11-23 14:08:51,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:51,271 INFO L276 IsEmpty]: Start isEmpty. Operand 6038 states and 17673 transitions. [2022-11-23 14:08:51,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:51,284 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:51,285 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:51,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-23 14:08:51,285 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:51,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:51,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1519620519, now seen corresponding path program 37 times [2022-11-23 14:08:51,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:51,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643811221] [2022-11-23 14:08:51,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:51,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:51,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:52,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:52,290 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:52,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643811221] [2022-11-23 14:08:52,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643811221] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:52,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:52,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 14:08:52,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998253593] [2022-11-23 14:08:52,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:52,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 14:08:52,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:52,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 14:08:52,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:08:52,293 INFO L87 Difference]: Start difference. First operand 6038 states and 17673 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:52,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:52,601 INFO L93 Difference]: Finished difference Result 6558 states and 18987 transitions. [2022-11-23 14:08:52,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:08:52,602 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:52,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:52,620 INFO L225 Difference]: With dead ends: 6558 [2022-11-23 14:08:52,620 INFO L226 Difference]: Without dead ends: 6376 [2022-11-23 14:08:52,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:08:52,622 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 42 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:52,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 54 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:08:52,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6376 states. [2022-11-23 14:08:52,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6376 to 6104. [2022-11-23 14:08:52,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6104 states, 6103 states have (on average 2.907422579059479) internal successors, (17744), 6103 states have internal predecessors, (17744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:52,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6104 states to 6104 states and 17744 transitions. [2022-11-23 14:08:52,775 INFO L78 Accepts]: Start accepts. Automaton has 6104 states and 17744 transitions. Word has length 43 [2022-11-23 14:08:52,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:52,776 INFO L495 AbstractCegarLoop]: Abstraction has 6104 states and 17744 transitions. [2022-11-23 14:08:52,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:52,776 INFO L276 IsEmpty]: Start isEmpty. Operand 6104 states and 17744 transitions. [2022-11-23 14:08:52,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:52,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:52,789 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:52,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-23 14:08:52,790 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:52,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:52,790 INFO L85 PathProgramCache]: Analyzing trace with hash 697338177, now seen corresponding path program 38 times [2022-11-23 14:08:52,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:52,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428332356] [2022-11-23 14:08:52,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:52,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:52,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:53,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:53,793 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:53,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428332356] [2022-11-23 14:08:53,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428332356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:53,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:53,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:08:53,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852158052] [2022-11-23 14:08:53,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:53,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:08:53,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:53,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:08:53,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:08:53,796 INFO L87 Difference]: Start difference. First operand 6104 states and 17744 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:54,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:54,132 INFO L93 Difference]: Finished difference Result 6190 states and 17943 transitions. [2022-11-23 14:08:54,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:08:54,133 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:54,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:54,150 INFO L225 Difference]: With dead ends: 6190 [2022-11-23 14:08:54,150 INFO L226 Difference]: Without dead ends: 6130 [2022-11-23 14:08:54,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 6 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:08:54,151 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 29 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:54,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 62 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:08:54,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6130 states. [2022-11-23 14:08:54,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6130 to 6098. [2022-11-23 14:08:54,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6098 states, 6097 states have (on average 2.9048712481548304) internal successors, (17711), 6097 states have internal predecessors, (17711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:54,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6098 states to 6098 states and 17711 transitions. [2022-11-23 14:08:54,303 INFO L78 Accepts]: Start accepts. Automaton has 6098 states and 17711 transitions. Word has length 43 [2022-11-23 14:08:54,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:54,304 INFO L495 AbstractCegarLoop]: Abstraction has 6098 states and 17711 transitions. [2022-11-23 14:08:54,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:54,304 INFO L276 IsEmpty]: Start isEmpty. Operand 6098 states and 17711 transitions. [2022-11-23 14:08:54,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:54,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:54,317 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:54,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-23 14:08:54,317 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:54,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:54,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1235064281, now seen corresponding path program 39 times [2022-11-23 14:08:54,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:54,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442661727] [2022-11-23 14:08:54,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:54,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:54,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:54,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:54,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:54,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442661727] [2022-11-23 14:08:54,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442661727] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:54,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:54,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:08:54,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276336833] [2022-11-23 14:08:54,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:54,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:08:54,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:54,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:08:54,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:08:54,982 INFO L87 Difference]: Start difference. First operand 6098 states and 17711 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:55,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:55,353 INFO L93 Difference]: Finished difference Result 6666 states and 19233 transitions. [2022-11-23 14:08:55,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:08:55,354 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:55,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:55,373 INFO L225 Difference]: With dead ends: 6666 [2022-11-23 14:08:55,373 INFO L226 Difference]: Without dead ends: 6570 [2022-11-23 14:08:55,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:08:55,374 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 92 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:55,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 58 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:08:55,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6570 states. [2022-11-23 14:08:55,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6570 to 6182. [2022-11-23 14:08:55,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6182 states, 6181 states have (on average 2.9058404788869114) internal successors, (17961), 6181 states have internal predecessors, (17961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:55,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6182 states to 6182 states and 17961 transitions. [2022-11-23 14:08:55,503 INFO L78 Accepts]: Start accepts. Automaton has 6182 states and 17961 transitions. Word has length 43 [2022-11-23 14:08:55,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:55,504 INFO L495 AbstractCegarLoop]: Abstraction has 6182 states and 17961 transitions. [2022-11-23 14:08:55,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:55,504 INFO L276 IsEmpty]: Start isEmpty. Operand 6182 states and 17961 transitions. [2022-11-23 14:08:55,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:55,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:55,513 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:55,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-23 14:08:55,514 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:55,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:55,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1687409499, now seen corresponding path program 40 times [2022-11-23 14:08:55,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:55,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647356055] [2022-11-23 14:08:55,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:55,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:56,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:56,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:56,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647356055] [2022-11-23 14:08:56,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647356055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:56,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:56,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:08:56,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637379173] [2022-11-23 14:08:56,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:56,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:08:56,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:56,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:08:56,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:08:56,054 INFO L87 Difference]: Start difference. First operand 6182 states and 17961 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:56,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:56,604 INFO L93 Difference]: Finished difference Result 8260 states and 24130 transitions. [2022-11-23 14:08:56,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:08:56,604 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:56,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:56,627 INFO L225 Difference]: With dead ends: 8260 [2022-11-23 14:08:56,627 INFO L226 Difference]: Without dead ends: 7788 [2022-11-23 14:08:56,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:08:56,628 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 72 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:56,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 104 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 14:08:56,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7788 states. [2022-11-23 14:08:56,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7788 to 5882. [2022-11-23 14:08:56,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5882 states, 5881 states have (on average 2.904438020744771) internal successors, (17081), 5881 states have internal predecessors, (17081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:56,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5882 states to 5882 states and 17081 transitions. [2022-11-23 14:08:56,792 INFO L78 Accepts]: Start accepts. Automaton has 5882 states and 17081 transitions. Word has length 43 [2022-11-23 14:08:56,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:56,792 INFO L495 AbstractCegarLoop]: Abstraction has 5882 states and 17081 transitions. [2022-11-23 14:08:56,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:56,792 INFO L276 IsEmpty]: Start isEmpty. Operand 5882 states and 17081 transitions. [2022-11-23 14:08:56,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:56,805 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:56,805 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:56,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-23 14:08:56,805 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:56,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:56,806 INFO L85 PathProgramCache]: Analyzing trace with hash -316155719, now seen corresponding path program 41 times [2022-11-23 14:08:56,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:56,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492520242] [2022-11-23 14:08:56,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:56,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:57,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:57,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:57,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492520242] [2022-11-23 14:08:57,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492520242] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:57,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:57,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:08:57,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286609737] [2022-11-23 14:08:57,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:57,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:08:57,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:57,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:08:57,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:08:57,300 INFO L87 Difference]: Start difference. First operand 5882 states and 17081 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:57,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:57,532 INFO L93 Difference]: Finished difference Result 6222 states and 17959 transitions. [2022-11-23 14:08:57,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:08:57,532 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:57,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:57,549 INFO L225 Difference]: With dead ends: 6222 [2022-11-23 14:08:57,549 INFO L226 Difference]: Without dead ends: 5894 [2022-11-23 14:08:57,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:08:57,550 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 20 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:57,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 33 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:08:57,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5894 states. [2022-11-23 14:08:57,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5894 to 5448. [2022-11-23 14:08:57,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5448 states, 5447 states have (on average 2.9153662566550396) internal successors, (15880), 5447 states have internal predecessors, (15880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:57,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5448 states to 5448 states and 15880 transitions. [2022-11-23 14:08:57,688 INFO L78 Accepts]: Start accepts. Automaton has 5448 states and 15880 transitions. Word has length 43 [2022-11-23 14:08:57,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:57,689 INFO L495 AbstractCegarLoop]: Abstraction has 5448 states and 15880 transitions. [2022-11-23 14:08:57,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:57,689 INFO L276 IsEmpty]: Start isEmpty. Operand 5448 states and 15880 transitions. [2022-11-23 14:08:57,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:57,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:57,700 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:57,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-23 14:08:57,701 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:57,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:57,701 INFO L85 PathProgramCache]: Analyzing trace with hash 402916771, now seen corresponding path program 42 times [2022-11-23 14:08:57,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:57,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559706702] [2022-11-23 14:08:57,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:57,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:57,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:58,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:58,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:58,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559706702] [2022-11-23 14:08:58,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559706702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:58,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:58,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 14:08:58,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904062732] [2022-11-23 14:08:58,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:58,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 14:08:58,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:58,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 14:08:58,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:08:58,397 INFO L87 Difference]: Start difference. First operand 5448 states and 15880 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:58,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:58,637 INFO L93 Difference]: Finished difference Result 5484 states and 15960 transitions. [2022-11-23 14:08:58,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:08:58,639 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:58,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:58,650 INFO L225 Difference]: With dead ends: 5484 [2022-11-23 14:08:58,650 INFO L226 Difference]: Without dead ends: 5424 [2022-11-23 14:08:58,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:08:58,651 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 28 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:58,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 42 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:08:58,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5424 states. [2022-11-23 14:08:58,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5424 to 5424. [2022-11-23 14:08:58,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5424 states, 5423 states have (on average 2.9160981006822793) internal successors, (15814), 5423 states have internal predecessors, (15814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:58,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5424 states to 5424 states and 15814 transitions. [2022-11-23 14:08:58,743 INFO L78 Accepts]: Start accepts. Automaton has 5424 states and 15814 transitions. Word has length 43 [2022-11-23 14:08:58,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:58,743 INFO L495 AbstractCegarLoop]: Abstraction has 5424 states and 15814 transitions. [2022-11-23 14:08:58,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:58,743 INFO L276 IsEmpty]: Start isEmpty. Operand 5424 states and 15814 transitions. [2022-11-23 14:08:58,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:08:58,751 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:58,752 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:08:58,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-23 14:08:58,752 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:08:58,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:58,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1640984803, now seen corresponding path program 43 times [2022-11-23 14:08:58,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:58,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760693023] [2022-11-23 14:08:58,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:58,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:58,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:59,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:08:59,611 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:59,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760693023] [2022-11-23 14:08:59,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760693023] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:59,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:59,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:08:59,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078626189] [2022-11-23 14:08:59,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:59,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:08:59,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:59,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:08:59,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:08:59,613 INFO L87 Difference]: Start difference. First operand 5424 states and 15814 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:59,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:59,856 INFO L93 Difference]: Finished difference Result 5472 states and 15926 transitions. [2022-11-23 14:08:59,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:08:59,856 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:08:59,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:59,871 INFO L225 Difference]: With dead ends: 5472 [2022-11-23 14:08:59,871 INFO L226 Difference]: Without dead ends: 5408 [2022-11-23 14:08:59,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:08:59,872 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 32 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:59,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 44 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:08:59,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5408 states. [2022-11-23 14:08:59,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5408 to 5408. [2022-11-23 14:08:59,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5408 states, 5407 states have (on average 2.9178842241538745) internal successors, (15777), 5407 states have internal predecessors, (15777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:00,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5408 states to 5408 states and 15777 transitions. [2022-11-23 14:09:00,014 INFO L78 Accepts]: Start accepts. Automaton has 5408 states and 15777 transitions. Word has length 43 [2022-11-23 14:09:00,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:00,015 INFO L495 AbstractCegarLoop]: Abstraction has 5408 states and 15777 transitions. [2022-11-23 14:09:00,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:00,015 INFO L276 IsEmpty]: Start isEmpty. Operand 5408 states and 15777 transitions. [2022-11-23 14:09:00,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:00,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:00,027 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:00,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-23 14:09:00,028 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:00,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:00,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1367477249, now seen corresponding path program 44 times [2022-11-23 14:09:00,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:00,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100882365] [2022-11-23 14:09:00,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:00,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:00,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:00,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:00,770 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:00,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100882365] [2022-11-23 14:09:00,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100882365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:00,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:00,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:09:00,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174270811] [2022-11-23 14:09:00,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:00,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:09:00,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:00,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:09:00,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:00,773 INFO L87 Difference]: Start difference. First operand 5408 states and 15777 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:01,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:01,130 INFO L93 Difference]: Finished difference Result 5640 states and 16359 transitions. [2022-11-23 14:09:01,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:09:01,131 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:01,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:01,147 INFO L225 Difference]: With dead ends: 5640 [2022-11-23 14:09:01,147 INFO L226 Difference]: Without dead ends: 5464 [2022-11-23 14:09:01,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:01,148 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 31 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:01,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 60 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:01,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5464 states. [2022-11-23 14:09:01,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5464 to 5384. [2022-11-23 14:09:01,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5384 states, 5383 states have (on average 2.9197473527772617) internal successors, (15717), 5383 states have internal predecessors, (15717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:01,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5384 states to 5384 states and 15717 transitions. [2022-11-23 14:09:01,282 INFO L78 Accepts]: Start accepts. Automaton has 5384 states and 15717 transitions. Word has length 43 [2022-11-23 14:09:01,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:01,282 INFO L495 AbstractCegarLoop]: Abstraction has 5384 states and 15717 transitions. [2022-11-23 14:09:01,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:01,283 INFO L276 IsEmpty]: Start isEmpty. Operand 5384 states and 15717 transitions. [2022-11-23 14:09:01,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:01,294 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:01,295 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:01,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-11-23 14:09:01,295 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:01,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:01,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1946082297, now seen corresponding path program 45 times [2022-11-23 14:09:01,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:01,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909431907] [2022-11-23 14:09:01,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:01,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:01,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:01,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:01,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:01,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909431907] [2022-11-23 14:09:01,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909431907] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:01,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:01,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:09:01,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574001389] [2022-11-23 14:09:01,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:01,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:09:01,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:01,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:09:01,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:01,815 INFO L87 Difference]: Start difference. First operand 5384 states and 15717 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:02,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:02,278 INFO L93 Difference]: Finished difference Result 5504 states and 15999 transitions. [2022-11-23 14:09:02,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:09:02,279 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:02,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:02,290 INFO L225 Difference]: With dead ends: 5504 [2022-11-23 14:09:02,290 INFO L226 Difference]: Without dead ends: 5272 [2022-11-23 14:09:02,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-23 14:09:02,291 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 52 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:02,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 76 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:09:02,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5272 states. [2022-11-23 14:09:02,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5272 to 5272. [2022-11-23 14:09:02,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5272 states, 5271 states have (on average 2.919559855814836) internal successors, (15389), 5271 states have internal predecessors, (15389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:02,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5272 states to 5272 states and 15389 transitions. [2022-11-23 14:09:02,385 INFO L78 Accepts]: Start accepts. Automaton has 5272 states and 15389 transitions. Word has length 43 [2022-11-23 14:09:02,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:02,386 INFO L495 AbstractCegarLoop]: Abstraction has 5272 states and 15389 transitions. [2022-11-23 14:09:02,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:02,386 INFO L276 IsEmpty]: Start isEmpty. Operand 5272 states and 15389 transitions. [2022-11-23 14:09:02,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:02,393 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:02,393 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:02,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-11-23 14:09:02,394 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:02,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:02,394 INFO L85 PathProgramCache]: Analyzing trace with hash -595739833, now seen corresponding path program 46 times [2022-11-23 14:09:02,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:02,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717303451] [2022-11-23 14:09:02,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:02,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:02,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:03,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:03,121 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:03,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717303451] [2022-11-23 14:09:03,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717303451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:03,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:03,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:09:03,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774927988] [2022-11-23 14:09:03,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:03,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:09:03,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:03,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:09:03,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:03,124 INFO L87 Difference]: Start difference. First operand 5272 states and 15389 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:03,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:03,689 INFO L93 Difference]: Finished difference Result 5896 states and 17150 transitions. [2022-11-23 14:09:03,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 14:09:03,689 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:03,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:03,705 INFO L225 Difference]: With dead ends: 5896 [2022-11-23 14:09:03,706 INFO L226 Difference]: Without dead ends: 5688 [2022-11-23 14:09:03,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-11-23 14:09:03,706 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 114 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:03,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 93 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:09:03,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5688 states. [2022-11-23 14:09:03,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5688 to 5192. [2022-11-23 14:09:03,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5192 states, 5191 states have (on average 2.9267963783471393) internal successors, (15193), 5191 states have internal predecessors, (15193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:03,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5192 states to 5192 states and 15193 transitions. [2022-11-23 14:09:03,839 INFO L78 Accepts]: Start accepts. Automaton has 5192 states and 15193 transitions. Word has length 43 [2022-11-23 14:09:03,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:03,839 INFO L495 AbstractCegarLoop]: Abstraction has 5192 states and 15193 transitions. [2022-11-23 14:09:03,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:03,840 INFO L276 IsEmpty]: Start isEmpty. Operand 5192 states and 15193 transitions. [2022-11-23 14:09:03,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:03,851 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:03,851 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:03,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-11-23 14:09:03,852 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:03,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:03,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1030005377, now seen corresponding path program 47 times [2022-11-23 14:09:03,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:03,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498762306] [2022-11-23 14:09:03,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:03,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:04,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:04,482 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:04,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498762306] [2022-11-23 14:09:04,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498762306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:04,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:04,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:09:04,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612702214] [2022-11-23 14:09:04,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:04,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:09:04,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:04,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:09:04,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:04,484 INFO L87 Difference]: Start difference. First operand 5192 states and 15193 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:04,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:04,885 INFO L93 Difference]: Finished difference Result 5200 states and 15155 transitions. [2022-11-23 14:09:04,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:09:04,886 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:04,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:04,901 INFO L225 Difference]: With dead ends: 5200 [2022-11-23 14:09:04,901 INFO L226 Difference]: Without dead ends: 5200 [2022-11-23 14:09:04,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:04,902 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 43 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:04,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 79 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:09:04,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5200 states. [2022-11-23 14:09:04,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5200 to 5128. [2022-11-23 14:09:04,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5128 states, 5127 states have (on average 2.918860932319095) internal successors, (14965), 5127 states have internal predecessors, (14965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:04,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5128 states to 5128 states and 14965 transitions. [2022-11-23 14:09:04,993 INFO L78 Accepts]: Start accepts. Automaton has 5128 states and 14965 transitions. Word has length 43 [2022-11-23 14:09:04,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:04,993 INFO L495 AbstractCegarLoop]: Abstraction has 5128 states and 14965 transitions. [2022-11-23 14:09:04,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:04,994 INFO L276 IsEmpty]: Start isEmpty. Operand 5128 states and 14965 transitions. [2022-11-23 14:09:05,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:05,001 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:05,001 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:05,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-11-23 14:09:05,001 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:05,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:05,002 INFO L85 PathProgramCache]: Analyzing trace with hash 650326135, now seen corresponding path program 48 times [2022-11-23 14:09:05,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:05,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147427352] [2022-11-23 14:09:05,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:05,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:05,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:05,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:05,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:05,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147427352] [2022-11-23 14:09:05,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147427352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:05,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:05,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 14:09:05,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818550987] [2022-11-23 14:09:05,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:05,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 14:09:05,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:05,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 14:09:05,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:09:05,497 INFO L87 Difference]: Start difference. First operand 5128 states and 14965 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:05,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:05,866 INFO L93 Difference]: Finished difference Result 6184 states and 17887 transitions. [2022-11-23 14:09:05,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:09:05,866 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:05,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:05,877 INFO L225 Difference]: With dead ends: 6184 [2022-11-23 14:09:05,878 INFO L226 Difference]: Without dead ends: 5856 [2022-11-23 14:09:05,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:09:05,878 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 58 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:05,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 89 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:05,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5856 states. [2022-11-23 14:09:05,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5856 to 4594. [2022-11-23 14:09:05,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4594 states, 4593 states have (on average 2.910080557369911) internal successors, (13366), 4593 states have internal predecessors, (13366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:05,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4594 states to 4594 states and 13366 transitions. [2022-11-23 14:09:05,974 INFO L78 Accepts]: Start accepts. Automaton has 4594 states and 13366 transitions. Word has length 43 [2022-11-23 14:09:05,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:05,974 INFO L495 AbstractCegarLoop]: Abstraction has 4594 states and 13366 transitions. [2022-11-23 14:09:05,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:05,975 INFO L276 IsEmpty]: Start isEmpty. Operand 4594 states and 13366 transitions. [2022-11-23 14:09:05,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:05,981 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:05,981 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:05,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-11-23 14:09:05,981 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:05,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:05,982 INFO L85 PathProgramCache]: Analyzing trace with hash -265285953, now seen corresponding path program 49 times [2022-11-23 14:09:05,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:05,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961979897] [2022-11-23 14:09:05,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:05,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:06,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:06,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:06,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:06,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961979897] [2022-11-23 14:09:06,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961979897] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:06,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:06,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 14:09:06,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052555636] [2022-11-23 14:09:06,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:06,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 14:09:06,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:06,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 14:09:06,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:09:06,431 INFO L87 Difference]: Start difference. First operand 4594 states and 13366 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:06,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:06,834 INFO L93 Difference]: Finished difference Result 5292 states and 15401 transitions. [2022-11-23 14:09:06,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:09:06,835 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:06,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:06,845 INFO L225 Difference]: With dead ends: 5292 [2022-11-23 14:09:06,845 INFO L226 Difference]: Without dead ends: 5024 [2022-11-23 14:09:06,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:06,846 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 35 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:06,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 98 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:09:06,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5024 states. [2022-11-23 14:09:06,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5024 to 4556. [2022-11-23 14:09:06,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4556 states, 4555 states have (on average 2.9016465422612514) internal successors, (13217), 4555 states have internal predecessors, (13217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:06,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4556 states to 4556 states and 13217 transitions. [2022-11-23 14:09:06,928 INFO L78 Accepts]: Start accepts. Automaton has 4556 states and 13217 transitions. Word has length 43 [2022-11-23 14:09:06,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:06,928 INFO L495 AbstractCegarLoop]: Abstraction has 4556 states and 13217 transitions. [2022-11-23 14:09:06,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:06,928 INFO L276 IsEmpty]: Start isEmpty. Operand 4556 states and 13217 transitions. [2022-11-23 14:09:06,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:06,934 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:06,934 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:06,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-11-23 14:09:06,935 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:06,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:06,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1771111231, now seen corresponding path program 50 times [2022-11-23 14:09:06,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:06,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455590913] [2022-11-23 14:09:06,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:06,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:07,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:07,511 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:07,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455590913] [2022-11-23 14:09:07,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455590913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:07,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:07,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 14:09:07,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000102326] [2022-11-23 14:09:07,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:07,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:09:07,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:07,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:09:07,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:09:07,513 INFO L87 Difference]: Start difference. First operand 4556 states and 13217 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:07,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:07,899 INFO L93 Difference]: Finished difference Result 4896 states and 13961 transitions. [2022-11-23 14:09:07,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:09:07,899 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:07,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:07,908 INFO L225 Difference]: With dead ends: 4896 [2022-11-23 14:09:07,908 INFO L226 Difference]: Without dead ends: 4640 [2022-11-23 14:09:07,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:09:07,909 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 67 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:07,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 93 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:09:07,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4640 states. [2022-11-23 14:09:07,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4640 to 3588. [2022-11-23 14:09:07,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3588 states, 3587 states have (on average 2.8143295232785057) internal successors, (10095), 3587 states have internal predecessors, (10095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:07,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3588 states to 3588 states and 10095 transitions. [2022-11-23 14:09:07,985 INFO L78 Accepts]: Start accepts. Automaton has 3588 states and 10095 transitions. Word has length 43 [2022-11-23 14:09:07,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:07,985 INFO L495 AbstractCegarLoop]: Abstraction has 3588 states and 10095 transitions. [2022-11-23 14:09:07,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:07,985 INFO L276 IsEmpty]: Start isEmpty. Operand 3588 states and 10095 transitions. [2022-11-23 14:09:07,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:07,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:07,990 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:07,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-11-23 14:09:07,990 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:07,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:07,991 INFO L85 PathProgramCache]: Analyzing trace with hash -261094697, now seen corresponding path program 51 times [2022-11-23 14:09:07,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:07,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017735186] [2022-11-23 14:09:07,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:07,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:08,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:08,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:08,559 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:08,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017735186] [2022-11-23 14:09:08,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017735186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:08,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:08,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 14:09:08,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033052192] [2022-11-23 14:09:08,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:08,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 14:09:08,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:08,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 14:09:08,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:09:08,560 INFO L87 Difference]: Start difference. First operand 3588 states and 10095 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:08,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:08,857 INFO L93 Difference]: Finished difference Result 3678 states and 10326 transitions. [2022-11-23 14:09:08,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:09:08,858 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:08,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:08,867 INFO L225 Difference]: With dead ends: 3678 [2022-11-23 14:09:08,867 INFO L226 Difference]: Without dead ends: 3390 [2022-11-23 14:09:08,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:09:08,868 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 44 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:08,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 44 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:08,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3390 states. [2022-11-23 14:09:08,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3390 to 3272. [2022-11-23 14:09:08,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3272 states, 3271 states have (on average 2.823601345154387) internal successors, (9236), 3271 states have internal predecessors, (9236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:08,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3272 states to 3272 states and 9236 transitions. [2022-11-23 14:09:08,949 INFO L78 Accepts]: Start accepts. Automaton has 3272 states and 9236 transitions. Word has length 43 [2022-11-23 14:09:08,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:08,949 INFO L495 AbstractCegarLoop]: Abstraction has 3272 states and 9236 transitions. [2022-11-23 14:09:08,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:08,950 INFO L276 IsEmpty]: Start isEmpty. Operand 3272 states and 9236 transitions. [2022-11-23 14:09:08,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:08,957 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:08,957 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:08,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-11-23 14:09:08,957 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:08,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:08,958 INFO L85 PathProgramCache]: Analyzing trace with hash 621098799, now seen corresponding path program 52 times [2022-11-23 14:09:08,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:08,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621941576] [2022-11-23 14:09:08,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:08,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:09,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:09,462 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:09,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621941576] [2022-11-23 14:09:09,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621941576] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:09,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:09,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 14:09:09,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281907635] [2022-11-23 14:09:09,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:09,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 14:09:09,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:09,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 14:09:09,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:09:09,465 INFO L87 Difference]: Start difference. First operand 3272 states and 9236 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:09,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:09,798 INFO L93 Difference]: Finished difference Result 3462 states and 9779 transitions. [2022-11-23 14:09:09,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:09:09,798 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:09,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:09,805 INFO L225 Difference]: With dead ends: 3462 [2022-11-23 14:09:09,805 INFO L226 Difference]: Without dead ends: 3462 [2022-11-23 14:09:09,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:09:09,806 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 25 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:09,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 57 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:09,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3462 states. [2022-11-23 14:09:09,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3462 to 3404. [2022-11-23 14:09:09,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3404 states, 3403 states have (on average 2.8186893917131943) internal successors, (9592), 3403 states have internal predecessors, (9592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:09,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3404 states to 3404 states and 9592 transitions. [2022-11-23 14:09:09,868 INFO L78 Accepts]: Start accepts. Automaton has 3404 states and 9592 transitions. Word has length 43 [2022-11-23 14:09:09,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:09,869 INFO L495 AbstractCegarLoop]: Abstraction has 3404 states and 9592 transitions. [2022-11-23 14:09:09,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:09,869 INFO L276 IsEmpty]: Start isEmpty. Operand 3404 states and 9592 transitions. [2022-11-23 14:09:09,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:09,873 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:09,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:09,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-11-23 14:09:09,875 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:09,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:09,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1328196693, now seen corresponding path program 53 times [2022-11-23 14:09:09,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:09,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433754097] [2022-11-23 14:09:09,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:09,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:09,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:10,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:10,538 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:10,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433754097] [2022-11-23 14:09:10,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433754097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:10,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:10,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 14:09:10,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199208501] [2022-11-23 14:09:10,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:10,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 14:09:10,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:10,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 14:09:10,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:09:10,540 INFO L87 Difference]: Start difference. First operand 3404 states and 9592 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:10,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:10,847 INFO L93 Difference]: Finished difference Result 4330 states and 12177 transitions. [2022-11-23 14:09:10,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:09:10,848 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:10,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:10,855 INFO L225 Difference]: With dead ends: 4330 [2022-11-23 14:09:10,855 INFO L226 Difference]: Without dead ends: 3648 [2022-11-23 14:09:10,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:09:10,856 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 45 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:10,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 65 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:10,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3648 states. [2022-11-23 14:09:10,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3648 to 3648. [2022-11-23 14:09:10,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3648 states, 3647 states have (on average 2.8247874965725255) internal successors, (10302), 3647 states have internal predecessors, (10302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:10,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3648 states to 3648 states and 10302 transitions. [2022-11-23 14:09:10,918 INFO L78 Accepts]: Start accepts. Automaton has 3648 states and 10302 transitions. Word has length 43 [2022-11-23 14:09:10,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:10,918 INFO L495 AbstractCegarLoop]: Abstraction has 3648 states and 10302 transitions. [2022-11-23 14:09:10,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:10,918 INFO L276 IsEmpty]: Start isEmpty. Operand 3648 states and 10302 transitions. [2022-11-23 14:09:10,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:10,923 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:10,923 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:10,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-11-23 14:09:10,924 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:10,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:10,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1242307235, now seen corresponding path program 54 times [2022-11-23 14:09:10,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:10,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497501347] [2022-11-23 14:09:10,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:10,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:10,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:11,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:11,585 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:11,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497501347] [2022-11-23 14:09:11,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497501347] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:11,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:11,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:09:11,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471151355] [2022-11-23 14:09:11,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:11,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:09:11,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:11,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:09:11,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:11,587 INFO L87 Difference]: Start difference. First operand 3648 states and 10302 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:12,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:12,027 INFO L93 Difference]: Finished difference Result 4142 states and 11647 transitions. [2022-11-23 14:09:12,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:09:12,028 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:12,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:12,036 INFO L225 Difference]: With dead ends: 4142 [2022-11-23 14:09:12,036 INFO L226 Difference]: Without dead ends: 4026 [2022-11-23 14:09:12,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:12,037 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 48 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:12,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 103 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:09:12,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4026 states. [2022-11-23 14:09:12,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4026 to 4026. [2022-11-23 14:09:12,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4026 states, 4025 states have (on average 2.8166459627329195) internal successors, (11337), 4025 states have internal predecessors, (11337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:12,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4026 states to 4026 states and 11337 transitions. [2022-11-23 14:09:12,107 INFO L78 Accepts]: Start accepts. Automaton has 4026 states and 11337 transitions. Word has length 43 [2022-11-23 14:09:12,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:12,107 INFO L495 AbstractCegarLoop]: Abstraction has 4026 states and 11337 transitions. [2022-11-23 14:09:12,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:12,107 INFO L276 IsEmpty]: Start isEmpty. Operand 4026 states and 11337 transitions. [2022-11-23 14:09:12,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:12,112 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:12,113 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:12,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-11-23 14:09:12,113 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:12,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:12,113 INFO L85 PathProgramCache]: Analyzing trace with hash 931195913, now seen corresponding path program 55 times [2022-11-23 14:09:12,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:12,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722835088] [2022-11-23 14:09:12,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:12,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:12,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:12,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:12,682 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:12,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722835088] [2022-11-23 14:09:12,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722835088] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:12,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:12,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 14:09:12,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372465700] [2022-11-23 14:09:12,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:12,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:09:12,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:12,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:09:12,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:09:12,684 INFO L87 Difference]: Start difference. First operand 4026 states and 11337 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:13,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:13,101 INFO L93 Difference]: Finished difference Result 4286 states and 12019 transitions. [2022-11-23 14:09:13,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:09:13,102 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:13,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:13,114 INFO L225 Difference]: With dead ends: 4286 [2022-11-23 14:09:13,114 INFO L226 Difference]: Without dead ends: 4234 [2022-11-23 14:09:13,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:09:13,115 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 52 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:13,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 103 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:09:13,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4234 states. [2022-11-23 14:09:13,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4234 to 4038. [2022-11-23 14:09:13,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4038 states, 4037 states have (on average 2.8142184790686153) internal successors, (11361), 4037 states have internal predecessors, (11361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:13,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4038 states to 4038 states and 11361 transitions. [2022-11-23 14:09:13,220 INFO L78 Accepts]: Start accepts. Automaton has 4038 states and 11361 transitions. Word has length 43 [2022-11-23 14:09:13,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:13,220 INFO L495 AbstractCegarLoop]: Abstraction has 4038 states and 11361 transitions. [2022-11-23 14:09:13,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:13,221 INFO L276 IsEmpty]: Start isEmpty. Operand 4038 states and 11361 transitions. [2022-11-23 14:09:13,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:13,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:13,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:13,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-11-23 14:09:13,230 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:13,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:13,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1791650545, now seen corresponding path program 56 times [2022-11-23 14:09:13,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:13,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362822847] [2022-11-23 14:09:13,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:13,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:13,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:13,836 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:13,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362822847] [2022-11-23 14:09:13,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362822847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:13,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:13,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 14:09:13,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502135383] [2022-11-23 14:09:13,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:13,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 14:09:13,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:13,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 14:09:13,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:09:13,839 INFO L87 Difference]: Start difference. First operand 4038 states and 11361 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:14,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:14,123 INFO L93 Difference]: Finished difference Result 4102 states and 11507 transitions. [2022-11-23 14:09:14,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:09:14,124 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:14,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:14,131 INFO L225 Difference]: With dead ends: 4102 [2022-11-23 14:09:14,132 INFO L226 Difference]: Without dead ends: 4036 [2022-11-23 14:09:14,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:09:14,133 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 32 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:14,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 59 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:14,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4036 states. [2022-11-23 14:09:14,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4036 to 4022. [2022-11-23 14:09:14,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4022 states, 4021 states have (on average 2.8159661775677693) internal successors, (11323), 4021 states have internal predecessors, (11323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:14,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4022 states to 4022 states and 11323 transitions. [2022-11-23 14:09:14,199 INFO L78 Accepts]: Start accepts. Automaton has 4022 states and 11323 transitions. Word has length 43 [2022-11-23 14:09:14,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:14,199 INFO L495 AbstractCegarLoop]: Abstraction has 4022 states and 11323 transitions. [2022-11-23 14:09:14,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:14,200 INFO L276 IsEmpty]: Start isEmpty. Operand 4022 states and 11323 transitions. [2022-11-23 14:09:14,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:14,205 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:14,205 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:14,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-11-23 14:09:14,206 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:14,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:14,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1195118211, now seen corresponding path program 57 times [2022-11-23 14:09:14,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:14,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574878038] [2022-11-23 14:09:14,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:14,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:14,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:14,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:14,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:14,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574878038] [2022-11-23 14:09:14,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574878038] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:14,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:14,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:09:14,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162416760] [2022-11-23 14:09:14,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:14,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:09:14,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:14,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:09:14,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:14,848 INFO L87 Difference]: Start difference. First operand 4022 states and 11323 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:15,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:15,302 INFO L93 Difference]: Finished difference Result 4692 states and 13136 transitions. [2022-11-23 14:09:15,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:09:15,303 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:15,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:15,312 INFO L225 Difference]: With dead ends: 4692 [2022-11-23 14:09:15,312 INFO L226 Difference]: Without dead ends: 4526 [2022-11-23 14:09:15,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:15,313 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 51 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:15,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 137 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:09:15,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4526 states. [2022-11-23 14:09:15,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4526 to 4048. [2022-11-23 14:09:15,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4048 states, 4047 states have (on average 2.813442055843835) internal successors, (11386), 4047 states have internal predecessors, (11386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:15,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4048 states to 4048 states and 11386 transitions. [2022-11-23 14:09:15,394 INFO L78 Accepts]: Start accepts. Automaton has 4048 states and 11386 transitions. Word has length 43 [2022-11-23 14:09:15,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:15,394 INFO L495 AbstractCegarLoop]: Abstraction has 4048 states and 11386 transitions. [2022-11-23 14:09:15,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:15,395 INFO L276 IsEmpty]: Start isEmpty. Operand 4048 states and 11386 transitions. [2022-11-23 14:09:15,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:15,402 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:15,402 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:15,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-11-23 14:09:15,402 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:15,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:15,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1606478241, now seen corresponding path program 58 times [2022-11-23 14:09:15,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:15,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474361932] [2022-11-23 14:09:15,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:15,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:15,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:16,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:16,335 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:16,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474361932] [2022-11-23 14:09:16,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474361932] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:16,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:16,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 14:09:16,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382468744] [2022-11-23 14:09:16,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:16,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:09:16,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:16,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:09:16,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:09:16,336 INFO L87 Difference]: Start difference. First operand 4048 states and 11386 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:16,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:16,817 INFO L93 Difference]: Finished difference Result 4596 states and 12872 transitions. [2022-11-23 14:09:16,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:09:16,818 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:16,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:16,827 INFO L225 Difference]: With dead ends: 4596 [2022-11-23 14:09:16,827 INFO L226 Difference]: Without dead ends: 4596 [2022-11-23 14:09:16,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:09:16,828 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 48 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:16,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 145 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:09:16,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4596 states. [2022-11-23 14:09:16,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4596 to 4382. [2022-11-23 14:09:16,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4382 states, 4381 states have (on average 2.8100890207715135) internal successors, (12311), 4381 states have internal predecessors, (12311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:16,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4382 states to 4382 states and 12311 transitions. [2022-11-23 14:09:16,903 INFO L78 Accepts]: Start accepts. Automaton has 4382 states and 12311 transitions. Word has length 43 [2022-11-23 14:09:16,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:16,904 INFO L495 AbstractCegarLoop]: Abstraction has 4382 states and 12311 transitions. [2022-11-23 14:09:16,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:16,904 INFO L276 IsEmpty]: Start isEmpty. Operand 4382 states and 12311 transitions. [2022-11-23 14:09:16,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:16,913 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:16,913 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:16,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-11-23 14:09:16,914 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:16,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:16,914 INFO L85 PathProgramCache]: Analyzing trace with hash -249503969, now seen corresponding path program 59 times [2022-11-23 14:09:16,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:16,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754841225] [2022-11-23 14:09:16,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:16,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:17,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:17,544 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:17,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754841225] [2022-11-23 14:09:17,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754841225] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:17,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:17,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:09:17,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772914201] [2022-11-23 14:09:17,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:17,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:09:17,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:17,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:09:17,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:17,545 INFO L87 Difference]: Start difference. First operand 4382 states and 12311 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:18,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:18,103 INFO L93 Difference]: Finished difference Result 4810 states and 13432 transitions. [2022-11-23 14:09:18,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 14:09:18,103 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:18,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:18,112 INFO L225 Difference]: With dead ends: 4810 [2022-11-23 14:09:18,112 INFO L226 Difference]: Without dead ends: 4642 [2022-11-23 14:09:18,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-23 14:09:18,113 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 100 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:18,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 136 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 14:09:18,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4642 states. [2022-11-23 14:09:18,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4642 to 4278. [2022-11-23 14:09:18,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4278 states, 4277 states have (on average 2.8096796820201075) internal successors, (12017), 4277 states have internal predecessors, (12017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:18,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4278 states to 4278 states and 12017 transitions. [2022-11-23 14:09:18,222 INFO L78 Accepts]: Start accepts. Automaton has 4278 states and 12017 transitions. Word has length 43 [2022-11-23 14:09:18,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:18,222 INFO L495 AbstractCegarLoop]: Abstraction has 4278 states and 12017 transitions. [2022-11-23 14:09:18,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:18,222 INFO L276 IsEmpty]: Start isEmpty. Operand 4278 states and 12017 transitions. [2022-11-23 14:09:18,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:18,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:18,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:18,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-11-23 14:09:18,229 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:18,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:18,230 INFO L85 PathProgramCache]: Analyzing trace with hash 240089151, now seen corresponding path program 60 times [2022-11-23 14:09:18,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:18,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033922411] [2022-11-23 14:09:18,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:18,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:18,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:18,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:18,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:18,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033922411] [2022-11-23 14:09:18,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033922411] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:18,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:18,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:09:18,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296569334] [2022-11-23 14:09:18,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:18,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:09:18,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:18,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:09:18,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:18,848 INFO L87 Difference]: Start difference. First operand 4278 states and 12017 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:19,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:19,300 INFO L93 Difference]: Finished difference Result 4742 states and 13253 transitions. [2022-11-23 14:09:19,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:09:19,301 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:19,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:19,309 INFO L225 Difference]: With dead ends: 4742 [2022-11-23 14:09:19,309 INFO L226 Difference]: Without dead ends: 4572 [2022-11-23 14:09:19,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:19,310 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 50 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:19,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 119 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:09:19,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4572 states. [2022-11-23 14:09:19,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4572 to 4292. [2022-11-23 14:09:19,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4292 states, 4291 states have (on average 2.80447448147285) internal successors, (12034), 4291 states have internal predecessors, (12034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:19,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4292 states to 4292 states and 12034 transitions. [2022-11-23 14:09:19,384 INFO L78 Accepts]: Start accepts. Automaton has 4292 states and 12034 transitions. Word has length 43 [2022-11-23 14:09:19,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:19,384 INFO L495 AbstractCegarLoop]: Abstraction has 4292 states and 12034 transitions. [2022-11-23 14:09:19,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:19,384 INFO L276 IsEmpty]: Start isEmpty. Operand 4292 states and 12034 transitions. [2022-11-23 14:09:19,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:19,390 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:19,390 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:19,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-11-23 14:09:19,390 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:19,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:19,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1957439521, now seen corresponding path program 61 times [2022-11-23 14:09:19,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:19,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266271801] [2022-11-23 14:09:19,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:19,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:19,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:19,889 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:19,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266271801] [2022-11-23 14:09:19,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266271801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:19,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:19,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:09:19,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109954215] [2022-11-23 14:09:19,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:19,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:09:19,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:19,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:09:19,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:19,891 INFO L87 Difference]: Start difference. First operand 4292 states and 12034 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:20,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:20,312 INFO L93 Difference]: Finished difference Result 4630 states and 12918 transitions. [2022-11-23 14:09:20,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 14:09:20,312 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:20,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:20,321 INFO L225 Difference]: With dead ends: 4630 [2022-11-23 14:09:20,321 INFO L226 Difference]: Without dead ends: 4458 [2022-11-23 14:09:20,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-23 14:09:20,322 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 85 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:20,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 96 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:09:20,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4458 states. [2022-11-23 14:09:20,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4458 to 4254. [2022-11-23 14:09:20,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4254 states, 4253 states have (on average 2.7994356924523864) internal successors, (11906), 4253 states have internal predecessors, (11906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:20,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4254 states to 4254 states and 11906 transitions. [2022-11-23 14:09:20,397 INFO L78 Accepts]: Start accepts. Automaton has 4254 states and 11906 transitions. Word has length 43 [2022-11-23 14:09:20,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:20,397 INFO L495 AbstractCegarLoop]: Abstraction has 4254 states and 11906 transitions. [2022-11-23 14:09:20,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:20,397 INFO L276 IsEmpty]: Start isEmpty. Operand 4254 states and 11906 transitions. [2022-11-23 14:09:20,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:20,403 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:20,403 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:20,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-11-23 14:09:20,404 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:20,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:20,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1652924255, now seen corresponding path program 62 times [2022-11-23 14:09:20,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:20,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230748916] [2022-11-23 14:09:20,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:20,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:21,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:21,094 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:21,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230748916] [2022-11-23 14:09:21,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230748916] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:21,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:21,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:09:21,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842127983] [2022-11-23 14:09:21,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:21,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:09:21,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:21,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:09:21,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:21,097 INFO L87 Difference]: Start difference. First operand 4254 states and 11906 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:21,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:21,432 INFO L93 Difference]: Finished difference Result 4718 states and 13196 transitions. [2022-11-23 14:09:21,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:09:21,433 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:21,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:21,441 INFO L225 Difference]: With dead ends: 4718 [2022-11-23 14:09:21,441 INFO L226 Difference]: Without dead ends: 4654 [2022-11-23 14:09:21,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:21,442 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 46 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:21,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 101 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:21,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4654 states. [2022-11-23 14:09:21,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4654 to 4520. [2022-11-23 14:09:21,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4520 states, 4519 states have (on average 2.8021686213764108) internal successors, (12663), 4519 states have internal predecessors, (12663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:21,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4520 states to 4520 states and 12663 transitions. [2022-11-23 14:09:21,518 INFO L78 Accepts]: Start accepts. Automaton has 4520 states and 12663 transitions. Word has length 43 [2022-11-23 14:09:21,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:21,519 INFO L495 AbstractCegarLoop]: Abstraction has 4520 states and 12663 transitions. [2022-11-23 14:09:21,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:21,519 INFO L276 IsEmpty]: Start isEmpty. Operand 4520 states and 12663 transitions. [2022-11-23 14:09:21,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:21,525 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:21,525 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:21,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-11-23 14:09:21,525 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:21,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:21,526 INFO L85 PathProgramCache]: Analyzing trace with hash 786060831, now seen corresponding path program 63 times [2022-11-23 14:09:21,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:21,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122028797] [2022-11-23 14:09:21,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:21,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:21,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:22,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:22,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:22,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122028797] [2022-11-23 14:09:22,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122028797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:22,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:22,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:09:22,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806030186] [2022-11-23 14:09:22,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:22,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:09:22,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:22,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:09:22,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:22,043 INFO L87 Difference]: Start difference. First operand 4520 states and 12663 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:22,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:22,445 INFO L93 Difference]: Finished difference Result 4544 states and 12707 transitions. [2022-11-23 14:09:22,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:09:22,446 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:22,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:22,457 INFO L225 Difference]: With dead ends: 4544 [2022-11-23 14:09:22,457 INFO L226 Difference]: Without dead ends: 4392 [2022-11-23 14:09:22,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-23 14:09:22,458 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 61 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:22,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 82 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:22,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4392 states. [2022-11-23 14:09:22,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4392 to 4384. [2022-11-23 14:09:22,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4384 states, 4383 states have (on average 2.801505817932923) internal successors, (12279), 4383 states have internal predecessors, (12279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:22,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4384 states to 4384 states and 12279 transitions. [2022-11-23 14:09:22,561 INFO L78 Accepts]: Start accepts. Automaton has 4384 states and 12279 transitions. Word has length 43 [2022-11-23 14:09:22,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:22,561 INFO L495 AbstractCegarLoop]: Abstraction has 4384 states and 12279 transitions. [2022-11-23 14:09:22,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:22,561 INFO L276 IsEmpty]: Start isEmpty. Operand 4384 states and 12279 transitions. [2022-11-23 14:09:22,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:22,570 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:22,570 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:22,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-11-23 14:09:22,571 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:22,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:22,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1148672197, now seen corresponding path program 64 times [2022-11-23 14:09:22,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:22,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648337391] [2022-11-23 14:09:22,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:22,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:22,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:23,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:23,259 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:23,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648337391] [2022-11-23 14:09:23,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648337391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:23,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:23,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:09:23,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669548287] [2022-11-23 14:09:23,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:23,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:09:23,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:23,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:09:23,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:23,261 INFO L87 Difference]: Start difference. First operand 4384 states and 12279 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:23,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:23,867 INFO L93 Difference]: Finished difference Result 4680 states and 12965 transitions. [2022-11-23 14:09:23,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 14:09:23,868 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:23,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:23,876 INFO L225 Difference]: With dead ends: 4680 [2022-11-23 14:09:23,877 INFO L226 Difference]: Without dead ends: 4648 [2022-11-23 14:09:23,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-23 14:09:23,877 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 121 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:23,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 131 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 14:09:23,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4648 states. [2022-11-23 14:09:23,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4648 to 4352. [2022-11-23 14:09:23,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4352 states, 4351 states have (on average 2.7867156975407954) internal successors, (12125), 4351 states have internal predecessors, (12125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:23,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4352 states to 4352 states and 12125 transitions. [2022-11-23 14:09:23,951 INFO L78 Accepts]: Start accepts. Automaton has 4352 states and 12125 transitions. Word has length 43 [2022-11-23 14:09:23,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:23,951 INFO L495 AbstractCegarLoop]: Abstraction has 4352 states and 12125 transitions. [2022-11-23 14:09:23,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:23,951 INFO L276 IsEmpty]: Start isEmpty. Operand 4352 states and 12125 transitions. [2022-11-23 14:09:23,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:23,957 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:23,958 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:23,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-11-23 14:09:23,958 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:23,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:23,958 INFO L85 PathProgramCache]: Analyzing trace with hash -707310013, now seen corresponding path program 65 times [2022-11-23 14:09:23,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:23,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594906798] [2022-11-23 14:09:23,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:23,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:23,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:24,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:24,378 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:24,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594906798] [2022-11-23 14:09:24,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594906798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:24,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:24,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:09:24,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850257161] [2022-11-23 14:09:24,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:24,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:09:24,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:24,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:09:24,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:24,380 INFO L87 Difference]: Start difference. First operand 4352 states and 12125 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:24,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:24,719 INFO L93 Difference]: Finished difference Result 4488 states and 12477 transitions. [2022-11-23 14:09:24,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:09:24,719 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:24,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:24,727 INFO L225 Difference]: With dead ends: 4488 [2022-11-23 14:09:24,727 INFO L226 Difference]: Without dead ends: 4296 [2022-11-23 14:09:24,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:24,728 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 25 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:24,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 103 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:24,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4296 states. [2022-11-23 14:09:24,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4296 to 4216. [2022-11-23 14:09:24,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4216 states, 4215 states have (on average 2.790035587188612) internal successors, (11760), 4215 states have internal predecessors, (11760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:24,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4216 states to 4216 states and 11760 transitions. [2022-11-23 14:09:24,798 INFO L78 Accepts]: Start accepts. Automaton has 4216 states and 11760 transitions. Word has length 43 [2022-11-23 14:09:24,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:24,798 INFO L495 AbstractCegarLoop]: Abstraction has 4216 states and 11760 transitions. [2022-11-23 14:09:24,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:24,798 INFO L276 IsEmpty]: Start isEmpty. Operand 4216 states and 11760 transitions. [2022-11-23 14:09:24,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:24,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:24,804 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:24,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-11-23 14:09:24,804 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:24,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:24,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1325973301, now seen corresponding path program 66 times [2022-11-23 14:09:24,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:24,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709852624] [2022-11-23 14:09:24,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:24,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:24,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:25,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:25,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:25,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709852624] [2022-11-23 14:09:25,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709852624] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:25,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:25,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:09:25,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063351091] [2022-11-23 14:09:25,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:25,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:09:25,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:25,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:09:25,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:25,458 INFO L87 Difference]: Start difference. First operand 4216 states and 11760 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:25,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:25,782 INFO L93 Difference]: Finished difference Result 4578 states and 12697 transitions. [2022-11-23 14:09:25,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:09:25,783 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:25,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:25,790 INFO L225 Difference]: With dead ends: 4578 [2022-11-23 14:09:25,791 INFO L226 Difference]: Without dead ends: 4282 [2022-11-23 14:09:25,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:25,791 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 44 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:25,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 77 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:25,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4282 states. [2022-11-23 14:09:25,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4282 to 4272. [2022-11-23 14:09:25,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4272 states, 4271 states have (on average 2.7829548115195504) internal successors, (11886), 4271 states have internal predecessors, (11886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:25,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4272 states to 4272 states and 11886 transitions. [2022-11-23 14:09:25,865 INFO L78 Accepts]: Start accepts. Automaton has 4272 states and 11886 transitions. Word has length 43 [2022-11-23 14:09:25,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:25,865 INFO L495 AbstractCegarLoop]: Abstraction has 4272 states and 11886 transitions. [2022-11-23 14:09:25,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:25,865 INFO L276 IsEmpty]: Start isEmpty. Operand 4272 states and 11886 transitions. [2022-11-23 14:09:25,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:25,871 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:25,871 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:25,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-11-23 14:09:25,872 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:25,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:25,872 INFO L85 PathProgramCache]: Analyzing trace with hash 125337109, now seen corresponding path program 67 times [2022-11-23 14:09:25,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:25,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945311592] [2022-11-23 14:09:25,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:25,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:26,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:26,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:26,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945311592] [2022-11-23 14:09:26,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945311592] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:26,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:26,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:09:26,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228177133] [2022-11-23 14:09:26,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:26,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:09:26,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:26,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:09:26,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:26,284 INFO L87 Difference]: Start difference. First operand 4272 states and 11886 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:26,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:26,604 INFO L93 Difference]: Finished difference Result 4454 states and 12336 transitions. [2022-11-23 14:09:26,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:09:26,605 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:26,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:26,611 INFO L225 Difference]: With dead ends: 4454 [2022-11-23 14:09:26,611 INFO L226 Difference]: Without dead ends: 3376 [2022-11-23 14:09:26,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:26,612 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 57 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:26,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 77 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:26,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3376 states. [2022-11-23 14:09:26,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3376 to 3338. [2022-11-23 14:09:26,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3338 states, 3337 states have (on average 2.786335031465388) internal successors, (9298), 3337 states have internal predecessors, (9298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:26,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3338 states to 3338 states and 9298 transitions. [2022-11-23 14:09:26,668 INFO L78 Accepts]: Start accepts. Automaton has 3338 states and 9298 transitions. Word has length 43 [2022-11-23 14:09:26,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:26,668 INFO L495 AbstractCegarLoop]: Abstraction has 3338 states and 9298 transitions. [2022-11-23 14:09:26,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:26,668 INFO L276 IsEmpty]: Start isEmpty. Operand 3338 states and 9298 transitions. [2022-11-23 14:09:26,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:26,673 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:26,673 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:26,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-11-23 14:09:26,674 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:26,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:26,674 INFO L85 PathProgramCache]: Analyzing trace with hash 987270709, now seen corresponding path program 68 times [2022-11-23 14:09:26,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:26,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741867432] [2022-11-23 14:09:26,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:26,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:26,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:27,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:27,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:27,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741867432] [2022-11-23 14:09:27,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741867432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:27,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:27,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 14:09:27,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019706606] [2022-11-23 14:09:27,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:27,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:09:27,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:27,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:09:27,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:09:27,310 INFO L87 Difference]: Start difference. First operand 3338 states and 9298 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:27,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:27,672 INFO L93 Difference]: Finished difference Result 3014 states and 8044 transitions. [2022-11-23 14:09:27,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:09:27,672 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:27,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:27,677 INFO L225 Difference]: With dead ends: 3014 [2022-11-23 14:09:27,677 INFO L226 Difference]: Without dead ends: 2672 [2022-11-23 14:09:27,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:09:27,678 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 161 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:27,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 83 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:27,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2672 states. [2022-11-23 14:09:27,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2672 to 2436. [2022-11-23 14:09:27,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2436 states, 2435 states have (on average 2.693634496919918) internal successors, (6559), 2435 states have internal predecessors, (6559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:27,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2436 states to 2436 states and 6559 transitions. [2022-11-23 14:09:27,736 INFO L78 Accepts]: Start accepts. Automaton has 2436 states and 6559 transitions. Word has length 43 [2022-11-23 14:09:27,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:27,737 INFO L495 AbstractCegarLoop]: Abstraction has 2436 states and 6559 transitions. [2022-11-23 14:09:27,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:27,737 INFO L276 IsEmpty]: Start isEmpty. Operand 2436 states and 6559 transitions. [2022-11-23 14:09:27,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:27,742 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:27,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:27,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-11-23 14:09:27,742 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:27,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:27,743 INFO L85 PathProgramCache]: Analyzing trace with hash -962024783, now seen corresponding path program 69 times [2022-11-23 14:09:27,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:27,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662279450] [2022-11-23 14:09:27,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:27,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:27,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:28,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:28,792 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:28,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662279450] [2022-11-23 14:09:28,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662279450] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:28,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:28,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:09:28,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822651350] [2022-11-23 14:09:28,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:28,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:09:28,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:28,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:09:28,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:28,794 INFO L87 Difference]: Start difference. First operand 2436 states and 6559 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:29,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:29,134 INFO L93 Difference]: Finished difference Result 2692 states and 7231 transitions. [2022-11-23 14:09:29,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:09:29,134 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:29,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:29,139 INFO L225 Difference]: With dead ends: 2692 [2022-11-23 14:09:29,139 INFO L226 Difference]: Without dead ends: 2520 [2022-11-23 14:09:29,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:29,140 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 45 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:29,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 74 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:29,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2520 states. [2022-11-23 14:09:29,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2520 to 2448. [2022-11-23 14:09:29,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2448 states, 2447 states have (on average 2.690232938291786) internal successors, (6583), 2447 states have internal predecessors, (6583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:29,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 6583 transitions. [2022-11-23 14:09:29,178 INFO L78 Accepts]: Start accepts. Automaton has 2448 states and 6583 transitions. Word has length 43 [2022-11-23 14:09:29,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:29,178 INFO L495 AbstractCegarLoop]: Abstraction has 2448 states and 6583 transitions. [2022-11-23 14:09:29,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:29,178 INFO L276 IsEmpty]: Start isEmpty. Operand 2448 states and 6583 transitions. [2022-11-23 14:09:29,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:29,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:29,184 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:29,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-11-23 14:09:29,184 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:29,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:29,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1248858887, now seen corresponding path program 70 times [2022-11-23 14:09:29,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:29,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136627406] [2022-11-23 14:09:29,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:29,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:29,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:29,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:29,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136627406] [2022-11-23 14:09:29,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136627406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:29,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:29,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 14:09:29,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812651764] [2022-11-23 14:09:29,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:29,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:09:29,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:29,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:09:29,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:09:29,608 INFO L87 Difference]: Start difference. First operand 2448 states and 6583 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:30,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:30,077 INFO L93 Difference]: Finished difference Result 2918 states and 7822 transitions. [2022-11-23 14:09:30,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:09:30,078 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:30,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:30,084 INFO L225 Difference]: With dead ends: 2918 [2022-11-23 14:09:30,084 INFO L226 Difference]: Without dead ends: 2708 [2022-11-23 14:09:30,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:30,085 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 89 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:30,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 123 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:09:30,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2708 states. [2022-11-23 14:09:30,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2708 to 2596. [2022-11-23 14:09:30,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2596 states, 2595 states have (on average 2.6940269749518304) internal successors, (6991), 2595 states have internal predecessors, (6991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:30,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2596 states to 2596 states and 6991 transitions. [2022-11-23 14:09:30,146 INFO L78 Accepts]: Start accepts. Automaton has 2596 states and 6991 transitions. Word has length 43 [2022-11-23 14:09:30,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:30,146 INFO L495 AbstractCegarLoop]: Abstraction has 2596 states and 6991 transitions. [2022-11-23 14:09:30,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:30,147 INFO L276 IsEmpty]: Start isEmpty. Operand 2596 states and 6991 transitions. [2022-11-23 14:09:30,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:30,152 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:30,152 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:30,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-11-23 14:09:30,152 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:30,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:30,153 INFO L85 PathProgramCache]: Analyzing trace with hash -533297743, now seen corresponding path program 71 times [2022-11-23 14:09:30,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:30,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591155050] [2022-11-23 14:09:30,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:30,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:30,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:30,862 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:30,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591155050] [2022-11-23 14:09:30,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591155050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:30,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:30,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 14:09:30,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806469140] [2022-11-23 14:09:30,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:30,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 14:09:30,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:30,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 14:09:30,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:09:30,865 INFO L87 Difference]: Start difference. First operand 2596 states and 6991 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:31,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:31,173 INFO L93 Difference]: Finished difference Result 2616 states and 6982 transitions. [2022-11-23 14:09:31,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:09:31,174 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:31,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:31,179 INFO L225 Difference]: With dead ends: 2616 [2022-11-23 14:09:31,179 INFO L226 Difference]: Without dead ends: 2116 [2022-11-23 14:09:31,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:09:31,180 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 42 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:31,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 77 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:31,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2116 states. [2022-11-23 14:09:31,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2116 to 2104. [2022-11-23 14:09:31,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2104 states, 2103 states have (on average 2.6951973371374227) internal successors, (5668), 2103 states have internal predecessors, (5668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:31,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2104 states to 2104 states and 5668 transitions. [2022-11-23 14:09:31,228 INFO L78 Accepts]: Start accepts. Automaton has 2104 states and 5668 transitions. Word has length 43 [2022-11-23 14:09:31,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:31,228 INFO L495 AbstractCegarLoop]: Abstraction has 2104 states and 5668 transitions. [2022-11-23 14:09:31,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:31,229 INFO L276 IsEmpty]: Start isEmpty. Operand 2104 states and 5668 transitions. [2022-11-23 14:09:31,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:31,233 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:31,233 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:31,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-11-23 14:09:31,234 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:31,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:31,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1821873501, now seen corresponding path program 72 times [2022-11-23 14:09:31,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:31,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769918232] [2022-11-23 14:09:31,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:31,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:31,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:31,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:31,565 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:31,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769918232] [2022-11-23 14:09:31,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769918232] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:31,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:31,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:09:31,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842677298] [2022-11-23 14:09:31,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:31,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 14:09:31,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:31,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 14:09:31,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:09:31,567 INFO L87 Difference]: Start difference. First operand 2104 states and 5668 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:31,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:31,870 INFO L93 Difference]: Finished difference Result 2260 states and 5904 transitions. [2022-11-23 14:09:31,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:09:31,871 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:31,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:31,875 INFO L225 Difference]: With dead ends: 2260 [2022-11-23 14:09:31,876 INFO L226 Difference]: Without dead ends: 2096 [2022-11-23 14:09:31,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:31,876 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 87 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:31,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 62 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:31,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2096 states. [2022-11-23 14:09:31,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2096 to 1698. [2022-11-23 14:09:31,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1698 states, 1697 states have (on average 2.613435474366529) internal successors, (4435), 1697 states have internal predecessors, (4435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:31,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1698 states to 1698 states and 4435 transitions. [2022-11-23 14:09:31,918 INFO L78 Accepts]: Start accepts. Automaton has 1698 states and 4435 transitions. Word has length 43 [2022-11-23 14:09:31,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:31,918 INFO L495 AbstractCegarLoop]: Abstraction has 1698 states and 4435 transitions. [2022-11-23 14:09:31,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:31,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1698 states and 4435 transitions. [2022-11-23 14:09:31,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:31,922 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:31,922 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:31,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-11-23 14:09:31,922 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:31,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:31,923 INFO L85 PathProgramCache]: Analyzing trace with hash 2143370559, now seen corresponding path program 73 times [2022-11-23 14:09:31,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:31,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087122525] [2022-11-23 14:09:31,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:31,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:31,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:32,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:32,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:32,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087122525] [2022-11-23 14:09:32,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087122525] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:32,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:32,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:09:32,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599407352] [2022-11-23 14:09:32,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:32,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:09:32,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:32,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:09:32,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:32,298 INFO L87 Difference]: Start difference. First operand 1698 states and 4435 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:32,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:32,674 INFO L93 Difference]: Finished difference Result 1918 states and 4961 transitions. [2022-11-23 14:09:32,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:09:32,675 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:32,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:32,678 INFO L225 Difference]: With dead ends: 1918 [2022-11-23 14:09:32,678 INFO L226 Difference]: Without dead ends: 1622 [2022-11-23 14:09:32,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:32,679 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 64 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:32,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 114 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:09:32,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2022-11-23 14:09:32,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 1610. [2022-11-23 14:09:32,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1610 states, 1609 states have (on average 2.5612181479179617) internal successors, (4121), 1609 states have internal predecessors, (4121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:32,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 4121 transitions. [2022-11-23 14:09:32,703 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 4121 transitions. Word has length 43 [2022-11-23 14:09:32,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:32,704 INFO L495 AbstractCegarLoop]: Abstraction has 1610 states and 4121 transitions. [2022-11-23 14:09:32,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:32,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 4121 transitions. [2022-11-23 14:09:32,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:32,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:32,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:32,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-11-23 14:09:32,706 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:32,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:32,707 INFO L85 PathProgramCache]: Analyzing trace with hash 942734367, now seen corresponding path program 74 times [2022-11-23 14:09:32,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:32,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518637543] [2022-11-23 14:09:32,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:32,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:32,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:33,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:33,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:33,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518637543] [2022-11-23 14:09:33,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518637543] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:33,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:33,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:09:33,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140411880] [2022-11-23 14:09:33,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:33,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:09:33,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:33,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:09:33,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:33,280 INFO L87 Difference]: Start difference. First operand 1610 states and 4121 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:33,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:33,680 INFO L93 Difference]: Finished difference Result 1694 states and 4299 transitions. [2022-11-23 14:09:33,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:09:33,680 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:33,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:33,683 INFO L225 Difference]: With dead ends: 1694 [2022-11-23 14:09:33,683 INFO L226 Difference]: Without dead ends: 1554 [2022-11-23 14:09:33,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:33,684 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 39 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:33,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 110 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:09:33,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2022-11-23 14:09:33,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1554. [2022-11-23 14:09:33,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 2.563425627817128) internal successors, (3981), 1553 states have internal predecessors, (3981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:33,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 3981 transitions. [2022-11-23 14:09:33,708 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 3981 transitions. Word has length 43 [2022-11-23 14:09:33,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:33,708 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 3981 transitions. [2022-11-23 14:09:33,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:33,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 3981 transitions. [2022-11-23 14:09:33,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:33,711 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:33,711 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:33,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-11-23 14:09:33,711 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:33,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:33,712 INFO L85 PathProgramCache]: Analyzing trace with hash 65723173, now seen corresponding path program 75 times [2022-11-23 14:09:33,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:33,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714292212] [2022-11-23 14:09:33,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:33,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:33,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:34,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:34,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:34,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714292212] [2022-11-23 14:09:34,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714292212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:34,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:34,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:09:34,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010607598] [2022-11-23 14:09:34,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:34,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:09:34,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:34,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:09:34,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:34,458 INFO L87 Difference]: Start difference. First operand 1554 states and 3981 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:34,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:34,744 INFO L93 Difference]: Finished difference Result 1602 states and 4093 transitions. [2022-11-23 14:09:34,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:09:34,744 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:34,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:34,747 INFO L225 Difference]: With dead ends: 1602 [2022-11-23 14:09:34,747 INFO L226 Difference]: Without dead ends: 1542 [2022-11-23 14:09:34,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:34,748 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 29 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:34,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 78 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:34,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1542 states. [2022-11-23 14:09:34,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1542 to 1542. [2022-11-23 14:09:34,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1542 states, 1541 states have (on average 2.5509409474367293) internal successors, (3931), 1541 states have internal predecessors, (3931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:34,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 3931 transitions. [2022-11-23 14:09:34,768 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 3931 transitions. Word has length 43 [2022-11-23 14:09:34,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:34,768 INFO L495 AbstractCegarLoop]: Abstraction has 1542 states and 3931 transitions. [2022-11-23 14:09:34,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:34,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 3931 transitions. [2022-11-23 14:09:34,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:34,770 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:34,771 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:34,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-11-23 14:09:34,771 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:34,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:34,771 INFO L85 PathProgramCache]: Analyzing trace with hash -221110931, now seen corresponding path program 76 times [2022-11-23 14:09:34,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:34,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753600705] [2022-11-23 14:09:34,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:34,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:35,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:35,322 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:35,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753600705] [2022-11-23 14:09:35,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753600705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:35,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:35,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 14:09:35,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426597650] [2022-11-23 14:09:35,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:35,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:09:35,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:35,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:09:35,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:09:35,323 INFO L87 Difference]: Start difference. First operand 1542 states and 3931 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:35,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:35,690 INFO L93 Difference]: Finished difference Result 1448 states and 3644 transitions. [2022-11-23 14:09:35,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 14:09:35,691 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:35,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:35,693 INFO L225 Difference]: With dead ends: 1448 [2022-11-23 14:09:35,693 INFO L226 Difference]: Without dead ends: 1348 [2022-11-23 14:09:35,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:35,694 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 87 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:35,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 68 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:35,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2022-11-23 14:09:35,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 1308. [2022-11-23 14:09:35,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1308 states, 1307 states have (on average 2.5432287681713848) internal successors, (3324), 1307 states have internal predecessors, (3324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:35,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1308 states to 1308 states and 3324 transitions. [2022-11-23 14:09:35,713 INFO L78 Accepts]: Start accepts. Automaton has 1308 states and 3324 transitions. Word has length 43 [2022-11-23 14:09:35,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:35,714 INFO L495 AbstractCegarLoop]: Abstraction has 1308 states and 3324 transitions. [2022-11-23 14:09:35,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:35,714 INFO L276 IsEmpty]: Start isEmpty. Operand 1308 states and 3324 transitions. [2022-11-23 14:09:35,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:35,716 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:35,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:35,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-11-23 14:09:35,716 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:35,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:35,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1119447585, now seen corresponding path program 77 times [2022-11-23 14:09:35,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:35,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731534000] [2022-11-23 14:09:35,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:35,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:35,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:36,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:36,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:36,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731534000] [2022-11-23 14:09:36,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731534000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:36,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:36,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 14:09:36,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787046121] [2022-11-23 14:09:36,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:36,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:09:36,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:36,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:09:36,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:09:36,121 INFO L87 Difference]: Start difference. First operand 1308 states and 3324 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:36,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:36,508 INFO L93 Difference]: Finished difference Result 1498 states and 3799 transitions. [2022-11-23 14:09:36,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:09:36,509 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:36,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:36,511 INFO L225 Difference]: With dead ends: 1498 [2022-11-23 14:09:36,512 INFO L226 Difference]: Without dead ends: 1314 [2022-11-23 14:09:36,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:09:36,512 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 32 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:36,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 126 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:09:36,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2022-11-23 14:09:36,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1314. [2022-11-23 14:09:36,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1314 states, 1313 states have (on average 2.5354150799695354) internal successors, (3329), 1313 states have internal predecessors, (3329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:36,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 3329 transitions. [2022-11-23 14:09:36,533 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 3329 transitions. Word has length 43 [2022-11-23 14:09:36,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:36,533 INFO L495 AbstractCegarLoop]: Abstraction has 1314 states and 3329 transitions. [2022-11-23 14:09:36,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:36,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 3329 transitions. [2022-11-23 14:09:36,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:36,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:36,535 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:36,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-11-23 14:09:36,536 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:36,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:36,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1987828575, now seen corresponding path program 78 times [2022-11-23 14:09:36,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:36,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474380448] [2022-11-23 14:09:36,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:36,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:36,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:37,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:37,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:37,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474380448] [2022-11-23 14:09:37,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474380448] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:37,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:37,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-23 14:09:37,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054840993] [2022-11-23 14:09:37,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:37,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 14:09:37,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:37,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 14:09:37,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:09:37,412 INFO L87 Difference]: Start difference. First operand 1314 states and 3329 transitions. Second operand has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:38,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:38,026 INFO L93 Difference]: Finished difference Result 1892 states and 4788 transitions. [2022-11-23 14:09:38,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 14:09:38,027 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:38,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:38,029 INFO L225 Difference]: With dead ends: 1892 [2022-11-23 14:09:38,030 INFO L226 Difference]: Without dead ends: 1682 [2022-11-23 14:09:38,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2022-11-23 14:09:38,030 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 159 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:38,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 123 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 14:09:38,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2022-11-23 14:09:38,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1422. [2022-11-23 14:09:38,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1422 states, 1421 states have (on average 2.53835327234342) internal successors, (3607), 1421 states have internal predecessors, (3607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:38,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 3607 transitions. [2022-11-23 14:09:38,054 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 3607 transitions. Word has length 43 [2022-11-23 14:09:38,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:38,054 INFO L495 AbstractCegarLoop]: Abstraction has 1422 states and 3607 transitions. [2022-11-23 14:09:38,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:38,055 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 3607 transitions. [2022-11-23 14:09:38,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:38,057 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:38,057 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:38,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-11-23 14:09:38,058 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:38,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:38,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1417001899, now seen corresponding path program 79 times [2022-11-23 14:09:38,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:38,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979752450] [2022-11-23 14:09:38,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:38,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:38,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:38,584 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:38,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979752450] [2022-11-23 14:09:38,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979752450] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:38,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:38,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:09:38,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230722487] [2022-11-23 14:09:38,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:38,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:09:38,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:38,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:09:38,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:38,586 INFO L87 Difference]: Start difference. First operand 1422 states and 3607 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:38,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:38,922 INFO L93 Difference]: Finished difference Result 1638 states and 4137 transitions. [2022-11-23 14:09:38,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:09:38,923 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:38,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:38,925 INFO L225 Difference]: With dead ends: 1638 [2022-11-23 14:09:38,925 INFO L226 Difference]: Without dead ends: 1418 [2022-11-23 14:09:38,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:38,927 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 60 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:38,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 81 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:38,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2022-11-23 14:09:38,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1374. [2022-11-23 14:09:38,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1374 states, 1373 states have (on average 2.5120174799708668) internal successors, (3449), 1373 states have internal predecessors, (3449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:38,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1374 states to 1374 states and 3449 transitions. [2022-11-23 14:09:38,951 INFO L78 Accepts]: Start accepts. Automaton has 1374 states and 3449 transitions. Word has length 43 [2022-11-23 14:09:38,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:38,951 INFO L495 AbstractCegarLoop]: Abstraction has 1374 states and 3449 transitions. [2022-11-23 14:09:38,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:38,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1374 states and 3449 transitions. [2022-11-23 14:09:38,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:38,954 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:38,954 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:38,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-11-23 14:09:38,954 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:38,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:38,955 INFO L85 PathProgramCache]: Analyzing trace with hash 718372339, now seen corresponding path program 80 times [2022-11-23 14:09:38,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:38,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593008451] [2022-11-23 14:09:38,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:38,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:38,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:39,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:39,389 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:39,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593008451] [2022-11-23 14:09:39,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593008451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:39,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:39,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-23 14:09:39,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945085155] [2022-11-23 14:09:39,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:39,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 14:09:39,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:39,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 14:09:39,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:09:39,391 INFO L87 Difference]: Start difference. First operand 1374 states and 3449 transitions. Second operand has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:39,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:39,782 INFO L93 Difference]: Finished difference Result 1536 states and 3828 transitions. [2022-11-23 14:09:39,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 14:09:39,782 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:39,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:39,785 INFO L225 Difference]: With dead ends: 1536 [2022-11-23 14:09:39,785 INFO L226 Difference]: Without dead ends: 1334 [2022-11-23 14:09:39,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-23 14:09:39,785 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 72 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:39,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 98 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:09:39,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2022-11-23 14:09:39,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1326. [2022-11-23 14:09:39,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 1325 states have (on average 2.4837735849056606) internal successors, (3291), 1325 states have internal predecessors, (3291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:39,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 3291 transitions. [2022-11-23 14:09:39,808 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 3291 transitions. Word has length 43 [2022-11-23 14:09:39,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:39,808 INFO L495 AbstractCegarLoop]: Abstraction has 1326 states and 3291 transitions. [2022-11-23 14:09:39,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:39,808 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 3291 transitions. [2022-11-23 14:09:39,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:39,810 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:39,810 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:39,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-11-23 14:09:39,810 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:39,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:39,810 INFO L85 PathProgramCache]: Analyzing trace with hash -452446513, now seen corresponding path program 81 times [2022-11-23 14:09:39,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:39,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042142472] [2022-11-23 14:09:39,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:39,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:40,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:40,496 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:40,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042142472] [2022-11-23 14:09:40,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042142472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:40,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:40,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:09:40,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529829289] [2022-11-23 14:09:40,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:40,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:09:40,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:40,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:09:40,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:40,498 INFO L87 Difference]: Start difference. First operand 1326 states and 3291 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:40,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:40,909 INFO L93 Difference]: Finished difference Result 1546 states and 3813 transitions. [2022-11-23 14:09:40,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:09:40,910 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:40,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:40,913 INFO L225 Difference]: With dead ends: 1546 [2022-11-23 14:09:40,913 INFO L226 Difference]: Without dead ends: 1362 [2022-11-23 14:09:40,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:40,913 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 49 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:40,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 97 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:09:40,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2022-11-23 14:09:40,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 1324. [2022-11-23 14:09:40,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 1323 states have (on average 2.4822373393801964) internal successors, (3284), 1323 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:40,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 3284 transitions. [2022-11-23 14:09:40,933 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 3284 transitions. Word has length 43 [2022-11-23 14:09:40,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:40,934 INFO L495 AbstractCegarLoop]: Abstraction has 1324 states and 3284 transitions. [2022-11-23 14:09:40,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:40,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 3284 transitions. [2022-11-23 14:09:40,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:40,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:40,936 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:40,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-11-23 14:09:40,936 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:40,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:40,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1948224965, now seen corresponding path program 82 times [2022-11-23 14:09:40,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:40,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013190714] [2022-11-23 14:09:40,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:40,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:40,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:41,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:41,343 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:41,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013190714] [2022-11-23 14:09:41,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013190714] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:41,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:41,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:09:41,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552211580] [2022-11-23 14:09:41,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:41,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:09:41,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:41,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:09:41,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:41,344 INFO L87 Difference]: Start difference. First operand 1324 states and 3284 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:41,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:41,693 INFO L93 Difference]: Finished difference Result 1388 states and 3434 transitions. [2022-11-23 14:09:41,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:09:41,694 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:41,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:41,696 INFO L225 Difference]: With dead ends: 1388 [2022-11-23 14:09:41,696 INFO L226 Difference]: Without dead ends: 1184 [2022-11-23 14:09:41,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:41,696 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 40 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:41,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 94 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:41,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2022-11-23 14:09:41,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 1150. [2022-11-23 14:09:41,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1150 states, 1149 states have (on average 2.4708442123585725) internal successors, (2839), 1149 states have internal predecessors, (2839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:41,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 2839 transitions. [2022-11-23 14:09:41,713 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 2839 transitions. Word has length 43 [2022-11-23 14:09:41,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:41,713 INFO L495 AbstractCegarLoop]: Abstraction has 1150 states and 2839 transitions. [2022-11-23 14:09:41,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:41,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 2839 transitions. [2022-11-23 14:09:41,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:41,715 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:41,715 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:41,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-11-23 14:09:41,715 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:41,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:41,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1619081037, now seen corresponding path program 83 times [2022-11-23 14:09:41,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:41,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128671878] [2022-11-23 14:09:41,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:41,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:42,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:42,286 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:42,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128671878] [2022-11-23 14:09:42,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128671878] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:42,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:42,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:09:42,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211017616] [2022-11-23 14:09:42,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:42,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:09:42,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:42,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:09:42,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:42,287 INFO L87 Difference]: Start difference. First operand 1150 states and 2839 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:42,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:42,549 INFO L93 Difference]: Finished difference Result 1184 states and 2906 transitions. [2022-11-23 14:09:42,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:09:42,549 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:42,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:42,552 INFO L225 Difference]: With dead ends: 1184 [2022-11-23 14:09:42,552 INFO L226 Difference]: Without dead ends: 1138 [2022-11-23 14:09:42,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:42,552 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 27 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:42,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 74 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:09:42,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2022-11-23 14:09:42,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 1136. [2022-11-23 14:09:42,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1135 states have (on average 2.4704845814977974) internal successors, (2804), 1135 states have internal predecessors, (2804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:42,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 2804 transitions. [2022-11-23 14:09:42,574 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 2804 transitions. Word has length 43 [2022-11-23 14:09:42,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:42,574 INFO L495 AbstractCegarLoop]: Abstraction has 1136 states and 2804 transitions. [2022-11-23 14:09:42,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:42,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 2804 transitions. [2022-11-23 14:09:42,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:42,576 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:42,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:42,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-11-23 14:09:42,576 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:42,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:42,577 INFO L85 PathProgramCache]: Analyzing trace with hash 725035191, now seen corresponding path program 84 times [2022-11-23 14:09:42,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:42,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470654273] [2022-11-23 14:09:42,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:42,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:43,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:43,025 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:43,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470654273] [2022-11-23 14:09:43,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470654273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:43,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:43,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:09:43,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137340725] [2022-11-23 14:09:43,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:43,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:09:43,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:43,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:09:43,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:43,028 INFO L87 Difference]: Start difference. First operand 1136 states and 2804 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:43,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:43,340 INFO L93 Difference]: Finished difference Result 1168 states and 2860 transitions. [2022-11-23 14:09:43,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:09:43,341 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:43,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:43,343 INFO L225 Difference]: With dead ends: 1168 [2022-11-23 14:09:43,343 INFO L226 Difference]: Without dead ends: 1132 [2022-11-23 14:09:43,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:43,344 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 42 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:43,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 81 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:43,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2022-11-23 14:09:43,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1118. [2022-11-23 14:09:43,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1118 states, 1117 states have (on average 2.477170993733214) internal successors, (2767), 1117 states have internal predecessors, (2767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:43,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 2767 transitions. [2022-11-23 14:09:43,370 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 2767 transitions. Word has length 43 [2022-11-23 14:09:43,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:43,370 INFO L495 AbstractCegarLoop]: Abstraction has 1118 states and 2767 transitions. [2022-11-23 14:09:43,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:43,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 2767 transitions. [2022-11-23 14:09:43,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:43,373 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:43,373 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:43,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-11-23 14:09:43,374 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:43,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:43,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1807360999, now seen corresponding path program 85 times [2022-11-23 14:09:43,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:43,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301218363] [2022-11-23 14:09:43,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:43,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:43,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:43,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:43,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301218363] [2022-11-23 14:09:43,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301218363] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:43,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:43,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 14:09:43,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282211478] [2022-11-23 14:09:43,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:43,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:09:43,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:43,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:09:43,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:09:43,832 INFO L87 Difference]: Start difference. First operand 1118 states and 2767 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:44,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:44,134 INFO L93 Difference]: Finished difference Result 1180 states and 2888 transitions. [2022-11-23 14:09:44,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:09:44,135 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:44,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:44,137 INFO L225 Difference]: With dead ends: 1180 [2022-11-23 14:09:44,138 INFO L226 Difference]: Without dead ends: 1118 [2022-11-23 14:09:44,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:09:44,138 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 14 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:44,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 84 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:44,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2022-11-23 14:09:44,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1118. [2022-11-23 14:09:44,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1118 states, 1117 states have (on average 2.4700089525514772) internal successors, (2759), 1117 states have internal predecessors, (2759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:44,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 2759 transitions. [2022-11-23 14:09:44,155 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 2759 transitions. Word has length 43 [2022-11-23 14:09:44,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:44,156 INFO L495 AbstractCegarLoop]: Abstraction has 1118 states and 2759 transitions. [2022-11-23 14:09:44,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:44,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 2759 transitions. [2022-11-23 14:09:44,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:44,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:44,157 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:44,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-11-23 14:09:44,158 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:44,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:44,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1068783469, now seen corresponding path program 86 times [2022-11-23 14:09:44,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:44,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022197129] [2022-11-23 14:09:44,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:44,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:44,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:44,654 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:44,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022197129] [2022-11-23 14:09:44,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022197129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:44,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:44,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-23 14:09:44,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484078736] [2022-11-23 14:09:44,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:44,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 14:09:44,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:44,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 14:09:44,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:09:44,655 INFO L87 Difference]: Start difference. First operand 1118 states and 2759 transitions. Second operand has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:45,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:45,034 INFO L93 Difference]: Finished difference Result 1180 states and 2884 transitions. [2022-11-23 14:09:45,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 14:09:45,034 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:45,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:45,036 INFO L225 Difference]: With dead ends: 1180 [2022-11-23 14:09:45,036 INFO L226 Difference]: Without dead ends: 1096 [2022-11-23 14:09:45,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:09:45,039 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 46 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:45,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 103 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:09:45,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2022-11-23 14:09:45,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1084. [2022-11-23 14:09:45,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1083 states have (on average 2.47460757156048) internal successors, (2680), 1083 states have internal predecessors, (2680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:45,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 2680 transitions. [2022-11-23 14:09:45,058 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 2680 transitions. Word has length 43 [2022-11-23 14:09:45,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:45,058 INFO L495 AbstractCegarLoop]: Abstraction has 1084 states and 2680 transitions. [2022-11-23 14:09:45,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:45,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 2680 transitions. [2022-11-23 14:09:45,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:45,060 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:45,060 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:45,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-11-23 14:09:45,060 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:45,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:45,061 INFO L85 PathProgramCache]: Analyzing trace with hash -2140835435, now seen corresponding path program 87 times [2022-11-23 14:09:45,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:45,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832104797] [2022-11-23 14:09:45,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:45,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:45,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:45,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:45,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832104797] [2022-11-23 14:09:45,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832104797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:45,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:45,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:09:45,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851017762] [2022-11-23 14:09:45,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:45,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:09:45,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:45,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:09:45,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:45,636 INFO L87 Difference]: Start difference. First operand 1084 states and 2680 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:45,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:45,989 INFO L93 Difference]: Finished difference Result 1152 states and 2808 transitions. [2022-11-23 14:09:45,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 14:09:45,990 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:45,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:45,991 INFO L225 Difference]: With dead ends: 1152 [2022-11-23 14:09:45,991 INFO L226 Difference]: Without dead ends: 1090 [2022-11-23 14:09:45,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:45,992 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 75 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:45,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 107 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:45,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2022-11-23 14:09:46,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 1082. [2022-11-23 14:09:46,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 1081 states have (on average 2.4708603145235895) internal successors, (2671), 1081 states have internal predecessors, (2671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:46,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 2671 transitions. [2022-11-23 14:09:46,006 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 2671 transitions. Word has length 43 [2022-11-23 14:09:46,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:46,007 INFO L495 AbstractCegarLoop]: Abstraction has 1082 states and 2671 transitions. [2022-11-23 14:09:46,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:46,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 2671 transitions. [2022-11-23 14:09:46,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:46,008 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:46,008 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:46,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-11-23 14:09:46,009 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:46,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:46,009 INFO L85 PathProgramCache]: Analyzing trace with hash 713024077, now seen corresponding path program 88 times [2022-11-23 14:09:46,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:46,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299615241] [2022-11-23 14:09:46,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:46,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:46,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:46,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:46,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299615241] [2022-11-23 14:09:46,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299615241] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:46,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:46,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:09:46,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141116245] [2022-11-23 14:09:46,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:46,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:09:46,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:46,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:09:46,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:46,502 INFO L87 Difference]: Start difference. First operand 1082 states and 2671 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:46,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:46,984 INFO L93 Difference]: Finished difference Result 1120 states and 2740 transitions. [2022-11-23 14:09:46,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 14:09:46,984 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:46,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:46,986 INFO L225 Difference]: With dead ends: 1120 [2022-11-23 14:09:46,987 INFO L226 Difference]: Without dead ends: 1080 [2022-11-23 14:09:46,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2022-11-23 14:09:46,987 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 94 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:46,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 90 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:09:46,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2022-11-23 14:09:47,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 1068. [2022-11-23 14:09:47,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 1067 states have (on average 2.4761012183692594) internal successors, (2642), 1067 states have internal predecessors, (2642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:47,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 2642 transitions. [2022-11-23 14:09:47,004 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 2642 transitions. Word has length 43 [2022-11-23 14:09:47,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:47,005 INFO L495 AbstractCegarLoop]: Abstraction has 1068 states and 2642 transitions. [2022-11-23 14:09:47,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:47,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 2642 transitions. [2022-11-23 14:09:47,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:47,007 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:47,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:47,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-11-23 14:09:47,007 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:47,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:47,007 INFO L85 PathProgramCache]: Analyzing trace with hash 600589847, now seen corresponding path program 89 times [2022-11-23 14:09:47,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:47,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606942540] [2022-11-23 14:09:47,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:47,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:47,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:47,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:47,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:47,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606942540] [2022-11-23 14:09:47,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606942540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:47,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:47,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:09:47,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15449984] [2022-11-23 14:09:47,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:47,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:09:47,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:47,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:09:47,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:47,420 INFO L87 Difference]: Start difference. First operand 1068 states and 2642 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:47,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:47,750 INFO L93 Difference]: Finished difference Result 1126 states and 2761 transitions. [2022-11-23 14:09:47,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:09:47,750 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:47,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:47,752 INFO L225 Difference]: With dead ends: 1126 [2022-11-23 14:09:47,752 INFO L226 Difference]: Without dead ends: 1064 [2022-11-23 14:09:47,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:47,753 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 21 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:47,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 81 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:47,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2022-11-23 14:09:47,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 1060. [2022-11-23 14:09:47,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1060 states, 1059 states have (on average 2.4759206798866855) internal successors, (2622), 1059 states have internal predecessors, (2622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:47,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 2622 transitions. [2022-11-23 14:09:47,768 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 2622 transitions. Word has length 43 [2022-11-23 14:09:47,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:47,769 INFO L495 AbstractCegarLoop]: Abstraction has 1060 states and 2622 transitions. [2022-11-23 14:09:47,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:47,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 2622 transitions. [2022-11-23 14:09:47,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:47,771 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:47,771 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:47,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-11-23 14:09:47,771 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:47,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:47,772 INFO L85 PathProgramCache]: Analyzing trace with hash -550347143, now seen corresponding path program 90 times [2022-11-23 14:09:47,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:47,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612698991] [2022-11-23 14:09:47,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:47,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:48,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:48,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:48,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612698991] [2022-11-23 14:09:48,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612698991] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:48,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:48,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:09:48,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184057211] [2022-11-23 14:09:48,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:48,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:09:48,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:48,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:09:48,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:48,210 INFO L87 Difference]: Start difference. First operand 1060 states and 2622 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:48,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:48,537 INFO L93 Difference]: Finished difference Result 1160 states and 2834 transitions. [2022-11-23 14:09:48,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:09:48,538 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:48,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:48,539 INFO L225 Difference]: With dead ends: 1160 [2022-11-23 14:09:48,540 INFO L226 Difference]: Without dead ends: 1084 [2022-11-23 14:09:48,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:48,540 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 37 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:48,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 70 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:48,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2022-11-23 14:09:48,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 1044. [2022-11-23 14:09:48,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 1043 states have (on average 2.4755512943432407) internal successors, (2582), 1043 states have internal predecessors, (2582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:48,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 2582 transitions. [2022-11-23 14:09:48,557 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 2582 transitions. Word has length 43 [2022-11-23 14:09:48,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:48,557 INFO L495 AbstractCegarLoop]: Abstraction has 1044 states and 2582 transitions. [2022-11-23 14:09:48,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:48,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 2582 transitions. [2022-11-23 14:09:48,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:48,558 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:48,559 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:48,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-11-23 14:09:48,559 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:48,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:48,559 INFO L85 PathProgramCache]: Analyzing trace with hash 447694779, now seen corresponding path program 91 times [2022-11-23 14:09:48,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:48,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082909921] [2022-11-23 14:09:48,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:48,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:48,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:49,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:49,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:49,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082909921] [2022-11-23 14:09:49,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082909921] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:49,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:49,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:09:49,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624538872] [2022-11-23 14:09:49,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:49,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:09:49,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:49,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:09:49,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:49,133 INFO L87 Difference]: Start difference. First operand 1044 states and 2582 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:49,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:49,455 INFO L93 Difference]: Finished difference Result 1112 states and 2726 transitions. [2022-11-23 14:09:49,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:09:49,455 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:49,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:49,457 INFO L225 Difference]: With dead ends: 1112 [2022-11-23 14:09:49,457 INFO L226 Difference]: Without dead ends: 1052 [2022-11-23 14:09:49,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:49,457 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 58 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:49,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 54 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:49,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2022-11-23 14:09:49,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 1052. [2022-11-23 14:09:49,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1052 states, 1051 states have (on average 2.4700285442435774) internal successors, (2596), 1051 states have internal predecessors, (2596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:49,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 2596 transitions. [2022-11-23 14:09:49,473 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 2596 transitions. Word has length 43 [2022-11-23 14:09:49,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:49,473 INFO L495 AbstractCegarLoop]: Abstraction has 1052 states and 2596 transitions. [2022-11-23 14:09:49,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:49,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 2596 transitions. [2022-11-23 14:09:49,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:49,474 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:49,475 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:49,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-11-23 14:09:49,475 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:49,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:49,475 INFO L85 PathProgramCache]: Analyzing trace with hash -993413005, now seen corresponding path program 92 times [2022-11-23 14:09:49,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:49,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005727090] [2022-11-23 14:09:49,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:49,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:49,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:49,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:49,898 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:49,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005727090] [2022-11-23 14:09:49,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005727090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:49,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:49,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:09:49,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522767485] [2022-11-23 14:09:49,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:49,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:09:49,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:49,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:09:49,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:49,899 INFO L87 Difference]: Start difference. First operand 1052 states and 2596 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:50,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:50,198 INFO L93 Difference]: Finished difference Result 1172 states and 2862 transitions. [2022-11-23 14:09:50,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:09:50,198 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:50,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:50,200 INFO L225 Difference]: With dead ends: 1172 [2022-11-23 14:09:50,200 INFO L226 Difference]: Without dead ends: 1036 [2022-11-23 14:09:50,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:09:50,201 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 36 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:50,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 76 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:50,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2022-11-23 14:09:50,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1002. [2022-11-23 14:09:50,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 1001 states have (on average 2.4835164835164836) internal successors, (2486), 1001 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:50,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 2486 transitions. [2022-11-23 14:09:50,217 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 2486 transitions. Word has length 43 [2022-11-23 14:09:50,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:50,217 INFO L495 AbstractCegarLoop]: Abstraction has 1002 states and 2486 transitions. [2022-11-23 14:09:50,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:50,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 2486 transitions. [2022-11-23 14:09:50,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:50,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:50,219 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:50,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-11-23 14:09:50,220 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:50,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:50,220 INFO L85 PathProgramCache]: Analyzing trace with hash 115348183, now seen corresponding path program 93 times [2022-11-23 14:09:50,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:50,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883757073] [2022-11-23 14:09:50,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:50,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:50,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:50,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:50,743 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:50,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883757073] [2022-11-23 14:09:50,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883757073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:50,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:50,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 14:09:50,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275356239] [2022-11-23 14:09:50,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:50,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:09:50,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:50,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:09:50,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:09:50,745 INFO L87 Difference]: Start difference. First operand 1002 states and 2486 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:51,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:51,218 INFO L93 Difference]: Finished difference Result 1294 states and 3167 transitions. [2022-11-23 14:09:51,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 14:09:51,218 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:51,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:51,220 INFO L225 Difference]: With dead ends: 1294 [2022-11-23 14:09:51,220 INFO L226 Difference]: Without dead ends: 1086 [2022-11-23 14:09:51,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-11-23 14:09:51,221 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 133 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:51,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 109 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:09:51,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2022-11-23 14:09:51,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 956. [2022-11-23 14:09:51,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 956 states, 955 states have (on average 2.4848167539267014) internal successors, (2373), 955 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:51,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 956 states to 956 states and 2373 transitions. [2022-11-23 14:09:51,236 INFO L78 Accepts]: Start accepts. Automaton has 956 states and 2373 transitions. Word has length 43 [2022-11-23 14:09:51,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:51,236 INFO L495 AbstractCegarLoop]: Abstraction has 956 states and 2373 transitions. [2022-11-23 14:09:51,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:51,236 INFO L276 IsEmpty]: Start isEmpty. Operand 956 states and 2373 transitions. [2022-11-23 14:09:51,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:51,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:51,237 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:51,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-11-23 14:09:51,238 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:51,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:51,238 INFO L85 PathProgramCache]: Analyzing trace with hash -622583593, now seen corresponding path program 94 times [2022-11-23 14:09:51,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:51,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634954747] [2022-11-23 14:09:51,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:51,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:51,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:51,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:51,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:51,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634954747] [2022-11-23 14:09:51,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634954747] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:51,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:51,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:09:51,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064618538] [2022-11-23 14:09:51,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:51,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:09:51,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:51,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:09:51,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:51,652 INFO L87 Difference]: Start difference. First operand 956 states and 2373 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:52,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:52,042 INFO L93 Difference]: Finished difference Result 1112 states and 2761 transitions. [2022-11-23 14:09:52,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:09:52,042 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:52,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:52,044 INFO L225 Difference]: With dead ends: 1112 [2022-11-23 14:09:52,044 INFO L226 Difference]: Without dead ends: 952 [2022-11-23 14:09:52,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:09:52,045 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 55 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:52,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 107 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:09:52,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2022-11-23 14:09:52,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 952. [2022-11-23 14:09:52,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 951 states have (on average 2.470031545741325) internal successors, (2349), 951 states have internal predecessors, (2349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:52,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 2349 transitions. [2022-11-23 14:09:52,059 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 2349 transitions. Word has length 43 [2022-11-23 14:09:52,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:52,059 INFO L495 AbstractCegarLoop]: Abstraction has 952 states and 2349 transitions. [2022-11-23 14:09:52,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:52,059 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 2349 transitions. [2022-11-23 14:09:52,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:52,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:52,061 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:52,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-11-23 14:09:52,061 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:52,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:52,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1057170037, now seen corresponding path program 95 times [2022-11-23 14:09:52,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:52,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389754485] [2022-11-23 14:09:52,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:52,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:52,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:52,493 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:52,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389754485] [2022-11-23 14:09:52,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389754485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:52,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:52,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 14:09:52,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309783332] [2022-11-23 14:09:52,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:52,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:09:52,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:52,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:09:52,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:09:52,495 INFO L87 Difference]: Start difference. First operand 952 states and 2349 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:52,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:52,787 INFO L93 Difference]: Finished difference Result 1020 states and 2479 transitions. [2022-11-23 14:09:52,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:09:52,788 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:52,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:52,789 INFO L225 Difference]: With dead ends: 1020 [2022-11-23 14:09:52,789 INFO L226 Difference]: Without dead ends: 934 [2022-11-23 14:09:52,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:09:52,790 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 48 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:52,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 75 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:52,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2022-11-23 14:09:52,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 928. [2022-11-23 14:09:52,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 927 states have (on average 2.4627831715210355) internal successors, (2283), 927 states have internal predecessors, (2283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:52,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 2283 transitions. [2022-11-23 14:09:52,803 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 2283 transitions. Word has length 43 [2022-11-23 14:09:52,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:52,804 INFO L495 AbstractCegarLoop]: Abstraction has 928 states and 2283 transitions. [2022-11-23 14:09:52,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:52,804 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 2283 transitions. [2022-11-23 14:09:52,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:52,805 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:52,805 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:52,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-11-23 14:09:52,805 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:52,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:52,806 INFO L85 PathProgramCache]: Analyzing trace with hash -816654989, now seen corresponding path program 96 times [2022-11-23 14:09:52,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:52,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624650504] [2022-11-23 14:09:52,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:52,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:52,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:53,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:53,346 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:53,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624650504] [2022-11-23 14:09:53,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624650504] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:53,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:53,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:09:53,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666081585] [2022-11-23 14:09:53,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:53,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:09:53,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:53,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:09:53,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:53,347 INFO L87 Difference]: Start difference. First operand 928 states and 2283 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:53,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:53,703 INFO L93 Difference]: Finished difference Result 914 states and 2198 transitions. [2022-11-23 14:09:53,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 14:09:53,703 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:53,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:53,704 INFO L225 Difference]: With dead ends: 914 [2022-11-23 14:09:53,704 INFO L226 Difference]: Without dead ends: 658 [2022-11-23 14:09:53,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:53,705 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 67 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:53,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 89 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:53,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2022-11-23 14:09:53,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 652. [2022-11-23 14:09:53,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 651 states have (on average 2.348694316436252) internal successors, (1529), 651 states have internal predecessors, (1529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:53,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 1529 transitions. [2022-11-23 14:09:53,716 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 1529 transitions. Word has length 43 [2022-11-23 14:09:53,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:53,716 INFO L495 AbstractCegarLoop]: Abstraction has 652 states and 1529 transitions. [2022-11-23 14:09:53,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:53,717 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 1529 transitions. [2022-11-23 14:09:53,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:53,718 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:53,718 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:53,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-11-23 14:09:53,718 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:53,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:53,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1923965889, now seen corresponding path program 97 times [2022-11-23 14:09:53,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:53,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332692474] [2022-11-23 14:09:53,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:53,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:53,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:54,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:54,289 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:54,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332692474] [2022-11-23 14:09:54,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332692474] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:54,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:54,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:09:54,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977826387] [2022-11-23 14:09:54,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:54,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:09:54,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:54,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:09:54,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:54,291 INFO L87 Difference]: Start difference. First operand 652 states and 1529 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:54,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:54,692 INFO L93 Difference]: Finished difference Result 672 states and 1563 transitions. [2022-11-23 14:09:54,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:09:54,693 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:54,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:54,694 INFO L225 Difference]: With dead ends: 672 [2022-11-23 14:09:54,695 INFO L226 Difference]: Without dead ends: 636 [2022-11-23 14:09:54,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:54,695 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 38 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:54,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 96 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:09:54,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2022-11-23 14:09:54,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 632. [2022-11-23 14:09:54,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 631 states have (on average 2.3438985736925515) internal successors, (1479), 631 states have internal predecessors, (1479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:54,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 1479 transitions. [2022-11-23 14:09:54,708 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 1479 transitions. Word has length 43 [2022-11-23 14:09:54,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:54,708 INFO L495 AbstractCegarLoop]: Abstraction has 632 states and 1479 transitions. [2022-11-23 14:09:54,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:54,708 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 1479 transitions. [2022-11-23 14:09:54,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:54,710 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:54,710 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:54,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-11-23 14:09:54,710 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:54,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:54,711 INFO L85 PathProgramCache]: Analyzing trace with hash 929893623, now seen corresponding path program 98 times [2022-11-23 14:09:54,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:54,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138198239] [2022-11-23 14:09:54,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:54,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:55,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:55,201 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:55,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138198239] [2022-11-23 14:09:55,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138198239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:55,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:55,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-23 14:09:55,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165542883] [2022-11-23 14:09:55,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:55,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 14:09:55,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:55,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 14:09:55,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:09:55,202 INFO L87 Difference]: Start difference. First operand 632 states and 1479 transitions. Second operand has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:55,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:55,503 INFO L93 Difference]: Finished difference Result 660 states and 1533 transitions. [2022-11-23 14:09:55,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 14:09:55,504 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:55,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:55,505 INFO L225 Difference]: With dead ends: 660 [2022-11-23 14:09:55,505 INFO L226 Difference]: Without dead ends: 554 [2022-11-23 14:09:55,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-11-23 14:09:55,506 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 96 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:55,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 50 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:55,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-11-23 14:09:55,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 460. [2022-11-23 14:09:55,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 459 states have (on average 2.4074074074074074) internal successors, (1105), 459 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:55,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 1105 transitions. [2022-11-23 14:09:55,514 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 1105 transitions. Word has length 43 [2022-11-23 14:09:55,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:55,514 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 1105 transitions. [2022-11-23 14:09:55,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:55,515 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 1105 transitions. [2022-11-23 14:09:55,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:55,515 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:55,515 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:55,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-11-23 14:09:55,516 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:55,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:55,516 INFO L85 PathProgramCache]: Analyzing trace with hash 486304691, now seen corresponding path program 99 times [2022-11-23 14:09:55,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:55,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061119735] [2022-11-23 14:09:55,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:55,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:55,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:55,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:55,984 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:55,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061119735] [2022-11-23 14:09:55,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061119735] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:55,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:55,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:09:55,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108765412] [2022-11-23 14:09:55,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:55,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:09:55,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:55,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:09:55,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:55,986 INFO L87 Difference]: Start difference. First operand 460 states and 1105 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:56,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:56,219 INFO L93 Difference]: Finished difference Result 494 states and 1170 transitions. [2022-11-23 14:09:56,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:09:56,219 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:56,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:56,220 INFO L225 Difference]: With dead ends: 494 [2022-11-23 14:09:56,220 INFO L226 Difference]: Without dead ends: 310 [2022-11-23 14:09:56,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:56,221 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 40 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:56,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 83 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:09:56,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-11-23 14:09:56,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 304. [2022-11-23 14:09:56,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 303 states have (on average 2.287128712871287) internal successors, (693), 303 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:56,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 693 transitions. [2022-11-23 14:09:56,225 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 693 transitions. Word has length 43 [2022-11-23 14:09:56,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:56,225 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 693 transitions. [2022-11-23 14:09:56,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:56,225 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 693 transitions. [2022-11-23 14:09:56,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:56,226 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:56,226 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:56,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-11-23 14:09:56,226 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:56,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:56,226 INFO L85 PathProgramCache]: Analyzing trace with hash 431399001, now seen corresponding path program 100 times [2022-11-23 14:09:56,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:56,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107895591] [2022-11-23 14:09:56,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:56,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:56,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:56,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:56,540 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:56,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107895591] [2022-11-23 14:09:56,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107895591] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:56,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:56,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 14:09:56,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315003453] [2022-11-23 14:09:56,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:56,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 14:09:56,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:56,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 14:09:56,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:09:56,542 INFO L87 Difference]: Start difference. First operand 304 states and 693 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:56,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:56,682 INFO L93 Difference]: Finished difference Result 332 states and 743 transitions. [2022-11-23 14:09:56,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:09:56,683 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:56,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:56,684 INFO L225 Difference]: With dead ends: 332 [2022-11-23 14:09:56,684 INFO L226 Difference]: Without dead ends: 286 [2022-11-23 14:09:56,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:09:56,684 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 44 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:56,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 28 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:09:56,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-11-23 14:09:56,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 280. [2022-11-23 14:09:56,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 279 states have (on average 2.283154121863799) internal successors, (637), 279 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:56,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 637 transitions. [2022-11-23 14:09:56,696 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 637 transitions. Word has length 43 [2022-11-23 14:09:56,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:56,697 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 637 transitions. [2022-11-23 14:09:56,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:56,697 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 637 transitions. [2022-11-23 14:09:56,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:56,698 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:56,698 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:56,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-11-23 14:09:56,698 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:56,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:56,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1507030041, now seen corresponding path program 101 times [2022-11-23 14:09:56,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:56,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467014298] [2022-11-23 14:09:56,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:56,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:56,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:57,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:57,194 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:57,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467014298] [2022-11-23 14:09:57,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467014298] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:57,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:57,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 14:09:57,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86434480] [2022-11-23 14:09:57,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:57,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:09:57,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:57,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:09:57,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:09:57,196 INFO L87 Difference]: Start difference. First operand 280 states and 637 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:57,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:57,490 INFO L93 Difference]: Finished difference Result 314 states and 708 transitions. [2022-11-23 14:09:57,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:09:57,490 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:57,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:57,491 INFO L225 Difference]: With dead ends: 314 [2022-11-23 14:09:57,491 INFO L226 Difference]: Without dead ends: 250 [2022-11-23 14:09:57,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:09:57,492 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 25 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:57,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 88 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:57,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-11-23 14:09:57,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 238. [2022-11-23 14:09:57,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 237 states have (on average 2.2658227848101267) internal successors, (537), 237 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:57,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 537 transitions. [2022-11-23 14:09:57,497 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 537 transitions. Word has length 43 [2022-11-23 14:09:57,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:57,498 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 537 transitions. [2022-11-23 14:09:57,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:57,498 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 537 transitions. [2022-11-23 14:09:57,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:57,499 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:57,499 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:57,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-11-23 14:09:57,500 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:57,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:57,500 INFO L85 PathProgramCache]: Analyzing trace with hash -245471893, now seen corresponding path program 102 times [2022-11-23 14:09:57,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:57,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488982536] [2022-11-23 14:09:57,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:57,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:57,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:57,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:57,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488982536] [2022-11-23 14:09:57,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488982536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:57,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:57,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:09:57,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510948724] [2022-11-23 14:09:57,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:57,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:09:57,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:57,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:09:57,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:57,928 INFO L87 Difference]: Start difference. First operand 238 states and 537 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:58,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:58,185 INFO L93 Difference]: Finished difference Result 282 states and 625 transitions. [2022-11-23 14:09:58,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:09:58,185 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:58,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:58,186 INFO L225 Difference]: With dead ends: 282 [2022-11-23 14:09:58,186 INFO L226 Difference]: Without dead ends: 256 [2022-11-23 14:09:58,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:09:58,186 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 32 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:58,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 52 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:09:58,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-11-23 14:09:58,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 242. [2022-11-23 14:09:58,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 241 states have (on average 2.2614107883817427) internal successors, (545), 241 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:58,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 545 transitions. [2022-11-23 14:09:58,190 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 545 transitions. Word has length 43 [2022-11-23 14:09:58,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:58,191 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 545 transitions. [2022-11-23 14:09:58,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:58,191 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 545 transitions. [2022-11-23 14:09:58,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:58,191 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:58,191 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:58,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-11-23 14:09:58,192 INFO L420 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:58,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:58,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1067949339, now seen corresponding path program 103 times [2022-11-23 14:09:58,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:58,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094291212] [2022-11-23 14:09:58,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:58,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:58,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:58,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:58,596 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:58,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094291212] [2022-11-23 14:09:58,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094291212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:58,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:58,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-23 14:09:58,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401473240] [2022-11-23 14:09:58,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:58,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 14:09:58,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:58,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 14:09:58,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:09:58,598 INFO L87 Difference]: Start difference. First operand 242 states and 545 transitions. Second operand has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:58,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:58,914 INFO L93 Difference]: Finished difference Result 284 states and 628 transitions. [2022-11-23 14:09:58,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 14:09:58,914 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:58,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:58,915 INFO L225 Difference]: With dead ends: 284 [2022-11-23 14:09:58,915 INFO L226 Difference]: Without dead ends: 256 [2022-11-23 14:09:58,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:09:58,916 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 25 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:58,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 84 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:58,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-11-23 14:09:58,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 246. [2022-11-23 14:09:58,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 245 states have (on average 2.2653061224489797) internal successors, (555), 245 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:58,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 555 transitions. [2022-11-23 14:09:58,919 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 555 transitions. Word has length 43 [2022-11-23 14:09:58,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:58,919 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 555 transitions. [2022-11-23 14:09:58,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:58,919 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 555 transitions. [2022-11-23 14:09:58,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:58,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:58,920 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:58,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-11-23 14:09:58,920 INFO L420 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:58,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:58,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1862003207, now seen corresponding path program 104 times [2022-11-23 14:09:58,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:58,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142299984] [2022-11-23 14:09:58,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:58,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:58,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:59,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:59,609 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:59,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142299984] [2022-11-23 14:09:59,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142299984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:59,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:59,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-23 14:09:59,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949528967] [2022-11-23 14:09:59,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:59,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 14:09:59,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:59,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 14:09:59,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:09:59,611 INFO L87 Difference]: Start difference. First operand 246 states and 555 transitions. Second operand has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:59,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:59,927 INFO L93 Difference]: Finished difference Result 284 states and 624 transitions. [2022-11-23 14:09:59,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:09:59,928 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:09:59,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:59,929 INFO L225 Difference]: With dead ends: 284 [2022-11-23 14:09:59,929 INFO L226 Difference]: Without dead ends: 252 [2022-11-23 14:09:59,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-11-23 14:09:59,929 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 25 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:59,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 66 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:09:59,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2022-11-23 14:09:59,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 242. [2022-11-23 14:09:59,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 241 states have (on average 2.2697095435684647) internal successors, (547), 241 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:59,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 547 transitions. [2022-11-23 14:09:59,933 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 547 transitions. Word has length 43 [2022-11-23 14:09:59,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:59,933 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 547 transitions. [2022-11-23 14:09:59,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:59,934 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 547 transitions. [2022-11-23 14:09:59,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:09:59,934 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:59,934 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:09:59,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-11-23 14:09:59,934 INFO L420 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:09:59,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:59,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1530014695, now seen corresponding path program 105 times [2022-11-23 14:09:59,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:59,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443339141] [2022-11-23 14:09:59,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:59,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:00,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:10:00,327 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:00,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443339141] [2022-11-23 14:10:00,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443339141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:00,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:00,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 14:10:00,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121933536] [2022-11-23 14:10:00,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:00,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:10:00,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:00,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:10:00,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:10:00,329 INFO L87 Difference]: Start difference. First operand 242 states and 547 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:00,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:00,571 INFO L93 Difference]: Finished difference Result 274 states and 605 transitions. [2022-11-23 14:10:00,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:10:00,572 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:10:00,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:00,573 INFO L225 Difference]: With dead ends: 274 [2022-11-23 14:10:00,573 INFO L226 Difference]: Without dead ends: 246 [2022-11-23 14:10:00,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:10:00,574 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 23 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:00,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 59 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:10:00,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-11-23 14:10:00,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 244. [2022-11-23 14:10:00,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 243 states have (on average 2.263374485596708) internal successors, (550), 243 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:00,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 550 transitions. [2022-11-23 14:10:00,577 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 550 transitions. Word has length 43 [2022-11-23 14:10:00,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:00,577 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 550 transitions. [2022-11-23 14:10:00,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:00,578 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 550 transitions. [2022-11-23 14:10:00,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:10:00,578 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:00,578 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:10:00,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-11-23 14:10:00,578 INFO L420 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:10:00,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:00,579 INFO L85 PathProgramCache]: Analyzing trace with hash 577460405, now seen corresponding path program 106 times [2022-11-23 14:10:00,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:00,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123281270] [2022-11-23 14:10:00,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:00,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:00,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:01,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:10:01,165 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:01,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123281270] [2022-11-23 14:10:01,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123281270] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:01,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:01,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:10:01,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45072305] [2022-11-23 14:10:01,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:01,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:10:01,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:01,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:10:01,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:10:01,167 INFO L87 Difference]: Start difference. First operand 244 states and 550 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:01,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:01,416 INFO L93 Difference]: Finished difference Result 272 states and 600 transitions. [2022-11-23 14:10:01,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:10:01,416 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:10:01,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:01,417 INFO L225 Difference]: With dead ends: 272 [2022-11-23 14:10:01,417 INFO L226 Difference]: Without dead ends: 242 [2022-11-23 14:10:01,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:10:01,418 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 33 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:01,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 72 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:10:01,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-11-23 14:10:01,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2022-11-23 14:10:01,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 241 states have (on average 2.2614107883817427) internal successors, (545), 241 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:01,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 545 transitions. [2022-11-23 14:10:01,421 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 545 transitions. Word has length 43 [2022-11-23 14:10:01,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:01,421 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 545 transitions. [2022-11-23 14:10:01,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:01,422 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 545 transitions. [2022-11-23 14:10:01,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:10:01,422 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:01,422 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:10:01,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-11-23 14:10:01,422 INFO L420 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:10:01,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:01,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1882796533, now seen corresponding path program 107 times [2022-11-23 14:10:01,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:01,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107386327] [2022-11-23 14:10:01,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:01,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:01,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:10:01,881 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:01,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107386327] [2022-11-23 14:10:01,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107386327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:01,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:01,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-23 14:10:01,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555765470] [2022-11-23 14:10:01,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:01,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 14:10:01,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:01,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 14:10:01,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:10:01,883 INFO L87 Difference]: Start difference. First operand 242 states and 545 transitions. Second operand has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:02,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:02,113 INFO L93 Difference]: Finished difference Result 282 states and 621 transitions. [2022-11-23 14:10:02,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:10:02,113 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:10:02,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:02,114 INFO L225 Difference]: With dead ends: 282 [2022-11-23 14:10:02,114 INFO L226 Difference]: Without dead ends: 250 [2022-11-23 14:10:02,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:10:02,114 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 40 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:02,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 77 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:10:02,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-11-23 14:10:02,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2022-11-23 14:10:02,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 249 states have (on average 2.2369477911646585) internal successors, (557), 249 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:02,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 557 transitions. [2022-11-23 14:10:02,119 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 557 transitions. Word has length 43 [2022-11-23 14:10:02,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:02,119 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 557 transitions. [2022-11-23 14:10:02,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:02,119 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 557 transitions. [2022-11-23 14:10:02,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:10:02,119 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:02,120 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:10:02,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-11-23 14:10:02,120 INFO L420 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:10:02,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:02,120 INFO L85 PathProgramCache]: Analyzing trace with hash -278073905, now seen corresponding path program 108 times [2022-11-23 14:10:02,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:02,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973041950] [2022-11-23 14:10:02,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:02,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:02,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:10:02,432 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:02,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973041950] [2022-11-23 14:10:02,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973041950] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:02,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:02,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 14:10:02,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056479572] [2022-11-23 14:10:02,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:02,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:10:02,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:02,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:10:02,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:10:02,433 INFO L87 Difference]: Start difference. First operand 250 states and 557 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:02,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:02,609 INFO L93 Difference]: Finished difference Result 276 states and 604 transitions. [2022-11-23 14:10:02,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:10:02,609 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:10:02,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:02,610 INFO L225 Difference]: With dead ends: 276 [2022-11-23 14:10:02,610 INFO L226 Difference]: Without dead ends: 230 [2022-11-23 14:10:02,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:10:02,610 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 24 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:02,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 57 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:10:02,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-11-23 14:10:02,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2022-11-23 14:10:02,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 229 states have (on average 2.2139737991266375) internal successors, (507), 229 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:02,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 507 transitions. [2022-11-23 14:10:02,614 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 507 transitions. Word has length 43 [2022-11-23 14:10:02,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:02,614 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 507 transitions. [2022-11-23 14:10:02,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:02,614 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 507 transitions. [2022-11-23 14:10:02,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:10:02,615 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:02,615 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:10:02,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-11-23 14:10:02,615 INFO L420 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:10:02,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:02,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1122330259, now seen corresponding path program 109 times [2022-11-23 14:10:02,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:02,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526480967] [2022-11-23 14:10:02,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:02,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:02,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:02,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:10:02,861 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:02,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526480967] [2022-11-23 14:10:02,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526480967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:02,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:02,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:10:02,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023105030] [2022-11-23 14:10:02,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:02,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:10:02,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:02,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:10:02,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:10:02,862 INFO L87 Difference]: Start difference. First operand 230 states and 507 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:02,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:02,980 INFO L93 Difference]: Finished difference Result 258 states and 557 transitions. [2022-11-23 14:10:02,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:10:02,981 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:10:02,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:02,981 INFO L225 Difference]: With dead ends: 258 [2022-11-23 14:10:02,981 INFO L226 Difference]: Without dead ends: 224 [2022-11-23 14:10:02,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:10:02,982 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 14 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:02,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 26 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:10:02,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-11-23 14:10:02,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2022-11-23 14:10:02,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 223 states have (on average 2.197309417040359) internal successors, (490), 223 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:02,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 490 transitions. [2022-11-23 14:10:02,985 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 490 transitions. Word has length 43 [2022-11-23 14:10:02,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:02,985 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 490 transitions. [2022-11-23 14:10:02,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:02,985 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 490 transitions. [2022-11-23 14:10:02,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:10:02,986 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:02,986 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:10:02,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-11-23 14:10:02,986 INFO L420 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:10:02,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:02,986 INFO L85 PathProgramCache]: Analyzing trace with hash 985144841, now seen corresponding path program 110 times [2022-11-23 14:10:02,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:02,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622667835] [2022-11-23 14:10:02,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:02,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:03,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:03,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:10:03,355 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:03,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622667835] [2022-11-23 14:10:03,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622667835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:03,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:03,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 14:10:03,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424616386] [2022-11-23 14:10:03,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:03,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 14:10:03,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:03,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 14:10:03,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:10:03,357 INFO L87 Difference]: Start difference. First operand 224 states and 490 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:03,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:03,489 INFO L93 Difference]: Finished difference Result 252 states and 540 transitions. [2022-11-23 14:10:03,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:10:03,489 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:10:03,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:03,490 INFO L225 Difference]: With dead ends: 252 [2022-11-23 14:10:03,490 INFO L226 Difference]: Without dead ends: 212 [2022-11-23 14:10:03,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:10:03,490 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 15 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:03,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 30 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:10:03,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-11-23 14:10:03,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2022-11-23 14:10:03,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 211 states have (on average 2.1800947867298577) internal successors, (460), 211 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:03,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 460 transitions. [2022-11-23 14:10:03,494 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 460 transitions. Word has length 43 [2022-11-23 14:10:03,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:03,494 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 460 transitions. [2022-11-23 14:10:03,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:03,494 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 460 transitions. [2022-11-23 14:10:03,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:10:03,495 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:03,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:10:03,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-11-23 14:10:03,495 INFO L420 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:10:03,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:03,495 INFO L85 PathProgramCache]: Analyzing trace with hash 721973037, now seen corresponding path program 111 times [2022-11-23 14:10:03,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:03,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990461267] [2022-11-23 14:10:03,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:03,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:03,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:03,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:10:03,861 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:03,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990461267] [2022-11-23 14:10:03,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990461267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:03,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:03,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:10:03,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754898082] [2022-11-23 14:10:03,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:03,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:10:03,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:03,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:10:03,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:10:03,863 INFO L87 Difference]: Start difference. First operand 212 states and 460 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:04,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:04,033 INFO L93 Difference]: Finished difference Result 266 states and 559 transitions. [2022-11-23 14:10:04,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:10:04,034 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:10:04,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:04,034 INFO L225 Difference]: With dead ends: 266 [2022-11-23 14:10:04,034 INFO L226 Difference]: Without dead ends: 202 [2022-11-23 14:10:04,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:10:04,035 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 34 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:04,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 55 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:10:04,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-11-23 14:10:04,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2022-11-23 14:10:04,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 201 states have (on average 2.174129353233831) internal successors, (437), 201 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:04,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 437 transitions. [2022-11-23 14:10:04,039 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 437 transitions. Word has length 43 [2022-11-23 14:10:04,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:04,040 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 437 transitions. [2022-11-23 14:10:04,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:04,040 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 437 transitions. [2022-11-23 14:10:04,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:10:04,041 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:04,041 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:10:04,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-11-23 14:10:04,041 INFO L420 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:10:04,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:04,042 INFO L85 PathProgramCache]: Analyzing trace with hash -136130899, now seen corresponding path program 112 times [2022-11-23 14:10:04,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:04,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443944855] [2022-11-23 14:10:04,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:04,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:04,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:04,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:10:04,527 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:04,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443944855] [2022-11-23 14:10:04,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443944855] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:04,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:04,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:10:04,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730902970] [2022-11-23 14:10:04,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:04,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:10:04,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:04,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:10:04,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:10:04,528 INFO L87 Difference]: Start difference. First operand 202 states and 437 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:04,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:04,759 INFO L93 Difference]: Finished difference Result 246 states and 529 transitions. [2022-11-23 14:10:04,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:10:04,760 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:10:04,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:04,760 INFO L225 Difference]: With dead ends: 246 [2022-11-23 14:10:04,761 INFO L226 Difference]: Without dead ends: 214 [2022-11-23 14:10:04,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:10:04,761 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 19 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:04,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 76 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:10:04,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-11-23 14:10:04,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2022-11-23 14:10:04,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 213 states have (on average 2.192488262910798) internal successors, (467), 213 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:04,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 467 transitions. [2022-11-23 14:10:04,764 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 467 transitions. Word has length 43 [2022-11-23 14:10:04,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:04,765 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 467 transitions. [2022-11-23 14:10:04,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:04,765 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 467 transitions. [2022-11-23 14:10:04,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:10:04,765 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:04,765 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:10:04,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-11-23 14:10:04,766 INFO L420 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:10:04,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:04,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1827392115, now seen corresponding path program 113 times [2022-11-23 14:10:04,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:04,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531191637] [2022-11-23 14:10:04,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:04,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:04,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:05,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:10:05,238 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:05,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531191637] [2022-11-23 14:10:05,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531191637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:05,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:05,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 14:10:05,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251588862] [2022-11-23 14:10:05,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:05,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:10:05,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:05,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:10:05,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:10:05,239 INFO L87 Difference]: Start difference. First operand 214 states and 467 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:05,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:05,462 INFO L93 Difference]: Finished difference Result 246 states and 525 transitions. [2022-11-23 14:10:05,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:10:05,463 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:10:05,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:05,463 INFO L225 Difference]: With dead ends: 246 [2022-11-23 14:10:05,463 INFO L226 Difference]: Without dead ends: 210 [2022-11-23 14:10:05,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:10:05,464 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 26 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:05,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 70 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:10:05,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-11-23 14:10:05,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 206. [2022-11-23 14:10:05,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 205 states have (on average 2.180487804878049) internal successors, (447), 205 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:05,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 447 transitions. [2022-11-23 14:10:05,467 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 447 transitions. Word has length 43 [2022-11-23 14:10:05,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:05,468 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 447 transitions. [2022-11-23 14:10:05,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:05,468 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 447 transitions. [2022-11-23 14:10:05,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:10:05,468 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:05,468 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:10:05,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-11-23 14:10:05,469 INFO L420 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:10:05,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:05,469 INFO L85 PathProgramCache]: Analyzing trace with hash -2082117843, now seen corresponding path program 114 times [2022-11-23 14:10:05,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:05,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820798120] [2022-11-23 14:10:05,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:05,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:06,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:10:06,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:06,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820798120] [2022-11-23 14:10:06,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820798120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:06,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:06,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:10:06,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729796204] [2022-11-23 14:10:06,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:06,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:10:06,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:06,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:10:06,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:10:06,084 INFO L87 Difference]: Start difference. First operand 206 states and 447 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:06,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:06,300 INFO L93 Difference]: Finished difference Result 302 states and 649 transitions. [2022-11-23 14:10:06,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:10:06,300 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:10:06,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:06,301 INFO L225 Difference]: With dead ends: 302 [2022-11-23 14:10:06,301 INFO L226 Difference]: Without dead ends: 262 [2022-11-23 14:10:06,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:10:06,302 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 63 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:06,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 68 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:10:06,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-11-23 14:10:06,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 208. [2022-11-23 14:10:06,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 207 states have (on average 2.106280193236715) internal successors, (436), 207 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:06,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 436 transitions. [2022-11-23 14:10:06,307 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 436 transitions. Word has length 43 [2022-11-23 14:10:06,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:06,307 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 436 transitions. [2022-11-23 14:10:06,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:06,308 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 436 transitions. [2022-11-23 14:10:06,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:10:06,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:06,309 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:10:06,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-11-23 14:10:06,309 INFO L420 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:10:06,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:06,310 INFO L85 PathProgramCache]: Analyzing trace with hash 51979015, now seen corresponding path program 115 times [2022-11-23 14:10:06,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:06,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158361605] [2022-11-23 14:10:06,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:06,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:06,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:10:06,752 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:06,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158361605] [2022-11-23 14:10:06,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158361605] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:06,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:06,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:10:06,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529546424] [2022-11-23 14:10:06,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:06,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:10:06,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:06,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:10:06,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:10:06,756 INFO L87 Difference]: Start difference. First operand 208 states and 436 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:06,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:06,944 INFO L93 Difference]: Finished difference Result 226 states and 463 transitions. [2022-11-23 14:10:06,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:10:06,945 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:10:06,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:06,945 INFO L225 Difference]: With dead ends: 226 [2022-11-23 14:10:06,945 INFO L226 Difference]: Without dead ends: 208 [2022-11-23 14:10:06,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:10:06,946 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 13 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:06,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 64 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:10:06,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-11-23 14:10:06,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2022-11-23 14:10:06,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 207 states have (on average 2.077294685990338) internal successors, (430), 207 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:06,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 430 transitions. [2022-11-23 14:10:06,950 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 430 transitions. Word has length 43 [2022-11-23 14:10:06,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:06,950 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 430 transitions. [2022-11-23 14:10:06,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:06,950 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 430 transitions. [2022-11-23 14:10:06,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:10:06,951 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:06,951 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:10:06,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-11-23 14:10:06,951 INFO L420 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:10:06,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:06,951 INFO L85 PathProgramCache]: Analyzing trace with hash -367901907, now seen corresponding path program 116 times [2022-11-23 14:10:06,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:06,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376131118] [2022-11-23 14:10:06,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:06,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:06,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:07,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:10:07,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:07,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376131118] [2022-11-23 14:10:07,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376131118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:07,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:07,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-23 14:10:07,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333656130] [2022-11-23 14:10:07,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:07,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 14:10:07,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:07,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 14:10:07,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:10:07,441 INFO L87 Difference]: Start difference. First operand 208 states and 430 transitions. Second operand has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:07,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:07,626 INFO L93 Difference]: Finished difference Result 240 states and 490 transitions. [2022-11-23 14:10:07,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:10:07,627 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:10:07,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:07,627 INFO L225 Difference]: With dead ends: 240 [2022-11-23 14:10:07,627 INFO L226 Difference]: Without dead ends: 212 [2022-11-23 14:10:07,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-23 14:10:07,628 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 37 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:07,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 47 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:10:07,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-11-23 14:10:07,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2022-11-23 14:10:07,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 211 states have (on average 2.066350710900474) internal successors, (436), 211 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:07,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 436 transitions. [2022-11-23 14:10:07,631 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 436 transitions. Word has length 43 [2022-11-23 14:10:07,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:07,632 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 436 transitions. [2022-11-23 14:10:07,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:07,632 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 436 transitions. [2022-11-23 14:10:07,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:10:07,632 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:07,632 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:10:07,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-11-23 14:10:07,633 INFO L420 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:10:07,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:07,633 INFO L85 PathProgramCache]: Analyzing trace with hash -837511129, now seen corresponding path program 117 times [2022-11-23 14:10:07,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:07,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093763362] [2022-11-23 14:10:07,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:07,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:07,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:08,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:10:08,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:08,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093763362] [2022-11-23 14:10:08,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093763362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:08,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:08,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 14:10:08,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553846884] [2022-11-23 14:10:08,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:08,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:10:08,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:08,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:10:08,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:10:08,091 INFO L87 Difference]: Start difference. First operand 212 states and 436 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:08,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:08,314 INFO L93 Difference]: Finished difference Result 238 states and 483 transitions. [2022-11-23 14:10:08,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:10:08,315 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:10:08,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:08,315 INFO L225 Difference]: With dead ends: 238 [2022-11-23 14:10:08,316 INFO L226 Difference]: Without dead ends: 184 [2022-11-23 14:10:08,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:10:08,316 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 18 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:08,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 53 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:10:08,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-11-23 14:10:08,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2022-11-23 14:10:08,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 183 states have (on average 2.0) internal successors, (366), 183 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:08,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 366 transitions. [2022-11-23 14:10:08,319 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 366 transitions. Word has length 43 [2022-11-23 14:10:08,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:08,320 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 366 transitions. [2022-11-23 14:10:08,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:08,320 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 366 transitions. [2022-11-23 14:10:08,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:10:08,320 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:08,320 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:10:08,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-11-23 14:10:08,321 INFO L420 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:10:08,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:08,321 INFO L85 PathProgramCache]: Analyzing trace with hash 2072060511, now seen corresponding path program 118 times [2022-11-23 14:10:08,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:08,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973062487] [2022-11-23 14:10:08,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:08,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:08,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:08,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:10:08,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:08,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973062487] [2022-11-23 14:10:08,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973062487] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:08,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:08,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-23 14:10:08,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004379308] [2022-11-23 14:10:08,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:08,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 14:10:08,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:08,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 14:10:08,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:10:08,733 INFO L87 Difference]: Start difference. First operand 184 states and 366 transitions. Second operand has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:08,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:08,914 INFO L93 Difference]: Finished difference Result 184 states and 362 transitions. [2022-11-23 14:10:08,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:10:08,914 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:10:08,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:08,915 INFO L225 Difference]: With dead ends: 184 [2022-11-23 14:10:08,915 INFO L226 Difference]: Without dead ends: 158 [2022-11-23 14:10:08,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:10:08,915 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 37 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:08,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 56 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:10:08,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-11-23 14:10:08,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2022-11-23 14:10:08,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 157 states have (on average 1.980891719745223) internal successors, (311), 157 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:08,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 311 transitions. [2022-11-23 14:10:08,919 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 311 transitions. Word has length 43 [2022-11-23 14:10:08,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:08,919 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 311 transitions. [2022-11-23 14:10:08,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:08,919 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 311 transitions. [2022-11-23 14:10:08,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:10:08,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:08,920 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:10:08,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-11-23 14:10:08,920 INFO L420 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:10:08,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:08,921 INFO L85 PathProgramCache]: Analyzing trace with hash 102833453, now seen corresponding path program 119 times [2022-11-23 14:10:08,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:08,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027557222] [2022-11-23 14:10:08,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:08,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:08,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:09,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:10:09,443 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:09,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027557222] [2022-11-23 14:10:09,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027557222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:09,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:09,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:10:09,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428745148] [2022-11-23 14:10:09,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:09,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:10:09,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:09,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:10:09,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:10:09,445 INFO L87 Difference]: Start difference. First operand 158 states and 311 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:09,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:09,629 INFO L93 Difference]: Finished difference Result 182 states and 355 transitions. [2022-11-23 14:10:09,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:10:09,629 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:10:09,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:09,630 INFO L225 Difference]: With dead ends: 182 [2022-11-23 14:10:09,630 INFO L226 Difference]: Without dead ends: 154 [2022-11-23 14:10:09,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:10:09,630 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 27 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:09,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 48 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:10:09,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2022-11-23 14:10:09,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2022-11-23 14:10:09,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 153 states have (on average 1.9673202614379084) internal successors, (301), 153 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:09,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 301 transitions. [2022-11-23 14:10:09,634 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 301 transitions. Word has length 43 [2022-11-23 14:10:09,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:09,634 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 301 transitions. [2022-11-23 14:10:09,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:09,634 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 301 transitions. [2022-11-23 14:10:09,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:10:09,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:09,635 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:10:09,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-11-23 14:10:09,635 INFO L420 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2022-11-23 14:10:09,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:09,635 INFO L85 PathProgramCache]: Analyzing trace with hash -366775769, now seen corresponding path program 120 times [2022-11-23 14:10:09,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:09,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199561939] [2022-11-23 14:10:09,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:09,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:09,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:10,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:10:10,342 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:10,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199561939] [2022-11-23 14:10:10,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199561939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:10,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:10,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 14:10:10,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719336938] [2022-11-23 14:10:10,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:10,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:10:10,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:10,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:10:10,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:10:10,343 INFO L87 Difference]: Start difference. First operand 154 states and 301 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:10,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:10,467 INFO L93 Difference]: Finished difference Result 80 states and 143 transitions. [2022-11-23 14:10:10,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:10:10,467 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-23 14:10:10,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:10,467 INFO L225 Difference]: With dead ends: 80 [2022-11-23 14:10:10,467 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 14:10:10,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:10:10,468 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 22 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:10,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 27 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:10:10,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 14:10:10,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 14:10:10,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:10,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 14:10:10,470 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2022-11-23 14:10:10,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:10,470 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 14:10:10,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:10:10,470 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 14:10:10,471 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 14:10:10,474 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 17 remaining) [2022-11-23 14:10:10,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 17 remaining) [2022-11-23 14:10:10,476 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 17 remaining) [2022-11-23 14:10:10,476 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 17 remaining) [2022-11-23 14:10:10,476 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 17 remaining) [2022-11-23 14:10:10,477 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 17 remaining) [2022-11-23 14:10:10,477 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 17 remaining) [2022-11-23 14:10:10,477 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 17 remaining) [2022-11-23 14:10:10,478 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 17 remaining) [2022-11-23 14:10:10,478 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 17 remaining) [2022-11-23 14:10:10,478 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 17 remaining) [2022-11-23 14:10:10,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 17 remaining) [2022-11-23 14:10:10,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK (4 of 17 remaining) [2022-11-23 14:10:10,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK (3 of 17 remaining) [2022-11-23 14:10:10,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 17 remaining) [2022-11-23 14:10:10,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 17 remaining) [2022-11-23 14:10:10,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 17 remaining) [2022-11-23 14:10:10,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-11-23 14:10:10,489 INFO L444 BasicCegarLoop]: Path program histogram: [120, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:10:10,492 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 14:10:10,492 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:10:10,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:10:10 BasicIcfg [2022-11-23 14:10:10,497 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:10:10,499 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:10:10,499 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:10:10,499 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:10:10,500 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:07:44" (3/4) ... [2022-11-23 14:10:10,504 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 14:10:10,511 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-23 14:10:10,511 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-23 14:10:10,511 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-23 14:10:10,521 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-11-23 14:10:10,522 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-23 14:10:10,522 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-23 14:10:10,522 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 14:10:10,583 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0e25d8-8c8b-4b49-a071-323844cc11c8/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 14:10:10,584 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:10:10,584 INFO L158 Benchmark]: Toolchain (without parser) took 147558.97ms. Allocated memory was 151.0MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 119.2MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 388.3MB. Max. memory is 16.1GB. [2022-11-23 14:10:10,584 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 151.0MB. Free memory is still 92.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:10:10,584 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.95ms. Allocated memory is still 151.0MB. Free memory was 118.8MB in the beginning and 106.3MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 14:10:10,585 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.95ms. Allocated memory is still 151.0MB. Free memory was 106.3MB in the beginning and 104.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:10:10,585 INFO L158 Benchmark]: Boogie Preprocessor took 30.25ms. Allocated memory is still 151.0MB. Free memory was 104.0MB in the beginning and 102.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:10:10,585 INFO L158 Benchmark]: RCFGBuilder took 957.18ms. Allocated memory is still 151.0MB. Free memory was 102.3MB in the beginning and 71.2MB in the end (delta: 31.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-23 14:10:10,585 INFO L158 Benchmark]: TraceAbstraction took 146137.15ms. Allocated memory was 151.0MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 70.5MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 335.8MB. Max. memory is 16.1GB. [2022-11-23 14:10:10,585 INFO L158 Benchmark]: Witness Printer took 85.07ms. Allocated memory is still 1.7GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 14:10:10,586 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 151.0MB. Free memory is still 92.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 287.95ms. Allocated memory is still 151.0MB. Free memory was 118.8MB in the beginning and 106.3MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.95ms. Allocated memory is still 151.0MB. Free memory was 106.3MB in the beginning and 104.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.25ms. Allocated memory is still 151.0MB. Free memory was 104.0MB in the beginning and 102.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 957.18ms. Allocated memory is still 151.0MB. Free memory was 102.3MB in the beginning and 71.2MB in the end (delta: 31.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 146137.15ms. Allocated memory was 151.0MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 70.5MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 335.8MB. Max. memory is 16.1GB. * Witness Printer took 85.07ms. Allocated memory is still 1.7GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.5s, 176 PlacesBefore, 70 PlacesAfterwards, 168 TransitionsBefore, 60 TransitionsAfterwards, 2688 CoEnabledTransitionPairs, 7 FixpointIterations, 94 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 138 TotalNumberOfCompositions, 17048 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7032, independent: 6589, independent conditional: 0, independent unconditional: 6589, dependent: 443, dependent conditional: 0, dependent unconditional: 443, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1903, independent: 1815, independent conditional: 0, independent unconditional: 1815, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1903, independent: 1791, independent conditional: 0, independent unconditional: 1791, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 112, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 261, independent: 61, independent conditional: 0, independent unconditional: 61, dependent: 199, dependent conditional: 0, dependent unconditional: 199, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7032, independent: 4774, independent conditional: 0, independent unconditional: 4774, dependent: 355, dependent conditional: 0, dependent unconditional: 355, unknown: 1903, unknown conditional: 0, unknown unconditional: 1903] , Statistics on independence cache: Total cache size (in pairs): 782, Positive cache size: 730, Positive conditional cache size: 0, Positive unconditional cache size: 730, Negative cache size: 52, Negative conditional cache size: 0, Negative unconditional cache size: 52, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 196]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 170]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 215 locations, 17 error locations. Started 1 CEGAR loops. OverallTime: 145.8s, OverallIterations: 127, TraceHistogramMax: 1, PathProgramHistogramMax: 120, EmptinessCheckTime: 1.0s, AutomataDifference: 50.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8399 SdHoareTripleChecker+Valid, 42.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8399 mSDsluCounter, 9939 SdHoareTripleChecker+Invalid, 35.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8148 mSDsCounter, 1680 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 58178 IncrementalHoareTripleChecker+Invalid, 59858 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1680 mSolverCounterUnsat, 1791 mSDtfsCounter, 58178 mSolverCounterSat, 0.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1481 GetRequests, 461 SyntacticMatches, 107 SemanticMatches, 913 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 970 ImplicationChecksByTransitivity, 9.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7306occurred in iteration=29, InterpolantAutomatonStates: 1043, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 12.4s AutomataMinimizationTime, 127 MinimizatonAttempts, 41266 StatesRemovedByMinimization, 94 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 3.0s SatisfiabilityAnalysisTime, 67.7s InterpolantComputationTime, 5191 NumberOfCodeBlocks, 5191 NumberOfCodeBlocksAsserted, 127 NumberOfCheckSat, 5064 ConstructedInterpolants, 0 QuantifiedInterpolants, 32423 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 127 InterpolantComputations, 127 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-23 14:10:10,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e0e25d8-8c8b-4b49-a071-323844cc11c8/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE