./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b 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_9bd39e25-881d-4d3c-b27b-8aa0b486b859/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd39e25-881d-4d3c-b27b-8aa0b486b859/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd39e25-881d-4d3c-b27b-8aa0b486b859/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd39e25-881d-4d3c-b27b-8aa0b486b859/bin/utaipan-I9t0OCRTmS/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd39e25-881d-4d3c-b27b-8aa0b486b859/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd39e25-881d-4d3c-b27b-8aa0b486b859/bin/utaipan-I9t0OCRTmS --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 9d6df98e8ac4880739ff8c7fa9cf00b32c56a4c64770b2bc9bcfef3d013872fa --- 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-8393723 [2022-11-19 08:30:33,072 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:30:33,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:30:33,099 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:30:33,101 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:30:33,102 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:30:33,103 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:30:33,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:30:33,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:30:33,120 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:30:33,121 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:30:33,123 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:30:33,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:30:33,127 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:30:33,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:30:33,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:30:33,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:30:33,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:30:33,142 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:30:33,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:30:33,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:30:33,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:30:33,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:30:33,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:30:33,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:30:33,169 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:30:33,169 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:30:33,170 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:30:33,171 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:30:33,172 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:30:33,173 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:30:33,174 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:30:33,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:30:33,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:30:33,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:30:33,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:30:33,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:30:33,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:30:33,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:30:33,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:30:33,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:30:33,184 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd39e25-881d-4d3c-b27b-8aa0b486b859/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-19 08:30:33,215 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:30:33,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:30:33,215 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:30:33,216 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:30:33,216 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:30:33,216 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:30:33,217 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:30:33,217 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:30:33,217 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:30:33,217 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:30:33,217 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:30:33,218 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:30:33,218 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:30:33,218 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:30:33,218 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:30:33,218 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:30:33,219 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:30:33,219 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:30:33,222 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-19 08:30:33,223 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-19 08:30:33,223 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:30:33,223 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:30:33,224 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 08:30:33,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:30:33,224 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:30:33,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:30:33,224 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-19 08:30:33,225 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-19 08:30:33,225 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-19 08:30:33,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:30:33,225 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 08:30:33,226 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:30:33,226 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:30:33,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:30:33,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:30:33,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:30:33,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:30:33,227 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:30:33,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:30:33,227 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:30:33,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:30:33,228 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:30:33,228 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_9bd39e25-881d-4d3c-b27b-8aa0b486b859/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd39e25-881d-4d3c-b27b-8aa0b486b859/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d6df98e8ac4880739ff8c7fa9cf00b32c56a4c64770b2bc9bcfef3d013872fa [2022-11-19 08:30:33,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:30:33,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:30:33,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:30:33,573 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:30:33,574 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:30:33,575 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd39e25-881d-4d3c-b27b-8aa0b486b859/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-11-19 08:30:33,664 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd39e25-881d-4d3c-b27b-8aa0b486b859/bin/utaipan-I9t0OCRTmS/data/d71d6fce1/faca4043a56e4d2b8b55c9a3370c6b70/FLAG34d6393ae [2022-11-19 08:30:34,287 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:30:34,288 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd39e25-881d-4d3c-b27b-8aa0b486b859/sv-benchmarks/c/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-11-19 08:30:34,304 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd39e25-881d-4d3c-b27b-8aa0b486b859/bin/utaipan-I9t0OCRTmS/data/d71d6fce1/faca4043a56e4d2b8b55c9a3370c6b70/FLAG34d6393ae [2022-11-19 08:30:34,551 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd39e25-881d-4d3c-b27b-8aa0b486b859/bin/utaipan-I9t0OCRTmS/data/d71d6fce1/faca4043a56e4d2b8b55c9a3370c6b70 [2022-11-19 08:30:34,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:30:34,556 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:30:34,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:30:34,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:30:34,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:30:34,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:30:34" (1/1) ... [2022-11-19 08:30:34,567 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b79cb18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:34, skipping insertion in model container [2022-11-19 08:30:34,568 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:30:34" (1/1) ... [2022-11-19 08:30:34,575 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:30:34,644 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:30:34,911 WARN L234 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_9bd39e25-881d-4d3c-b27b-8aa0b486b859/sv-benchmarks/c/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2022-11-19 08:30:35,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:30:35,123 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:30:35,135 WARN L234 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_9bd39e25-881d-4d3c-b27b-8aa0b486b859/sv-benchmarks/c/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2022-11-19 08:30:35,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:30:35,260 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:30:35,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:35 WrapperNode [2022-11-19 08:30:35,260 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:30:35,261 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:30:35,262 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:30:35,262 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:30:35,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:35" (1/1) ... [2022-11-19 08:30:35,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:35" (1/1) ... [2022-11-19 08:30:35,343 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 150 [2022-11-19 08:30:35,344 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:30:35,344 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:30:35,344 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:30:35,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:30:35,360 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:35" (1/1) ... [2022-11-19 08:30:35,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:35" (1/1) ... [2022-11-19 08:30:35,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:35" (1/1) ... [2022-11-19 08:30:35,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:35" (1/1) ... [2022-11-19 08:30:35,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:35" (1/1) ... [2022-11-19 08:30:35,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:35" (1/1) ... [2022-11-19 08:30:35,386 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:35" (1/1) ... [2022-11-19 08:30:35,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:35" (1/1) ... [2022-11-19 08:30:35,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:30:35,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:30:35,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:30:35,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:30:35,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:35" (1/1) ... [2022-11-19 08:30:35,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:30:35,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd39e25-881d-4d3c-b27b-8aa0b486b859/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:30:35,458 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd39e25-881d-4d3c-b27b-8aa0b486b859/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:30:35,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd39e25-881d-4d3c-b27b-8aa0b486b859/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:30:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:30:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-19 08:30:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:30:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:30:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:30:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-19 08:30:35,500 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-19 08:30:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-19 08:30:35,501 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-19 08:30:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:30:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-19 08:30:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:30:35,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:30:35,503 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 08:30:35,723 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:30:35,725 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:30:36,247 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:30:36,444 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:30:36,445 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 08:30:36,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:30:36 BoogieIcfgContainer [2022-11-19 08:30:36,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:30:36,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:30:36,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:30:36,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:30:36,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:30:34" (1/3) ... [2022-11-19 08:30:36,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387b1237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:30:36, skipping insertion in model container [2022-11-19 08:30:36,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:35" (2/3) ... [2022-11-19 08:30:36,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387b1237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:30:36, skipping insertion in model container [2022-11-19 08:30:36,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:30:36" (3/3) ... [2022-11-19 08:30:36,472 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-11-19 08:30:36,491 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:30:36,491 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-11-19 08:30:36,492 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 08:30:36,567 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-19 08:30:36,615 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 08:30:36,635 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 112 places, 107 transitions, 224 flow [2022-11-19 08:30:36,640 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 112 places, 107 transitions, 224 flow [2022-11-19 08:30:36,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 107 transitions, 224 flow [2022-11-19 08:30:36,683 INFO L130 PetriNetUnfolder]: 2/105 cut-off events. [2022-11-19 08:30:36,683 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-19 08:30:36,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 105 events. 2/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2022-11-19 08:30:36,689 INFO L119 LiptonReduction]: Number of co-enabled transitions 1528 [2022-11-19 08:30:42,864 INFO L134 LiptonReduction]: Checked pairs total: 4301 [2022-11-19 08:30:42,864 INFO L136 LiptonReduction]: Total number of compositions: 105 [2022-11-19 08:30:42,873 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 28 transitions, 66 flow [2022-11-19 08:30:42,946 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 292 states, 283 states have (on average 2.664310954063604) internal successors, (754), 291 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:42,976 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:30:42,986 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;@1e6e9681, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:30:42,986 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-19 08:30:42,992 INFO L276 IsEmpty]: Start isEmpty. Operand has 292 states, 283 states have (on average 2.664310954063604) internal successors, (754), 291 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:42,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-19 08:30:42,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:30:42,998 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-19 08:30:42,999 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:30:43,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:30:43,009 INFO L85 PathProgramCache]: Analyzing trace with hash 538, now seen corresponding path program 1 times [2022-11-19 08:30:43,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:30:43,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172126611] [2022-11-19 08:30:43,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:30:43,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:30:43,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:30:43,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:30:43,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:30:43,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172126611] [2022-11-19 08:30:43,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172126611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:30:43,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:30:43,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-19 08:30:43,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303395053] [2022-11-19 08:30:43,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:30:43,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:30:43,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:30:43,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:30:43,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:30:43,164 INFO L87 Difference]: Start difference. First operand has 292 states, 283 states have (on average 2.664310954063604) internal successors, (754), 291 states have internal predecessors, (754), 0 states have call successors, (0), 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) [2022-11-19 08:30:43,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:30:43,250 INFO L93 Difference]: Finished difference Result 278 states and 688 transitions. [2022-11-19 08:30:43,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:30:43,252 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 [2022-11-19 08:30:43,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:30:43,264 INFO L225 Difference]: With dead ends: 278 [2022-11-19 08:30:43,264 INFO L226 Difference]: Without dead ends: 278 [2022-11-19 08:30:43,265 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 [2022-11-19 08:30:43,268 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:30:43,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:30:43,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-11-19 08:30:43,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2022-11-19 08:30:43,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 273 states have (on average 2.52014652014652) internal successors, (688), 277 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:43,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 688 transitions. [2022-11-19 08:30:43,362 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 688 transitions. Word has length 1 [2022-11-19 08:30:43,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:30:43,363 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 688 transitions. [2022-11-19 08:30:43,366 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) [2022-11-19 08:30:43,367 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 688 transitions. [2022-11-19 08:30:43,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 08:30:43,369 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:30:43,370 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 08:30:43,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:30:43,370 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:30:43,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:30:43,371 INFO L85 PathProgramCache]: Analyzing trace with hash 510331795, now seen corresponding path program 1 times [2022-11-19 08:30:43,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:30:43,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867640702] [2022-11-19 08:30:43,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:30:43,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:30:43,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:30:43,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:30:43,815 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:30:43,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867640702] [2022-11-19 08:30:43,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867640702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:30:43,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:30:43,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 08:30:43,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259876745] [2022-11-19 08:30:43,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:30:43,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:30:43,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:30:43,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:30:43,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:30:43,819 INFO L87 Difference]: Start difference. First operand 278 states and 688 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) [2022-11-19 08:30:43,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:30:43,923 INFO L93 Difference]: Finished difference Result 236 states and 575 transitions. [2022-11-19 08:30:43,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:30:43,927 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 [2022-11-19 08:30:43,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:30:43,929 INFO L225 Difference]: With dead ends: 236 [2022-11-19 08:30:43,930 INFO L226 Difference]: Without dead ends: 230 [2022-11-19 08:30:43,930 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 [2022-11-19 08:30:43,931 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:30:43,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 0 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:30:43,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-11-19 08:30:43,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2022-11-19 08:30:43,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 228 states have (on average 2.473684210526316) internal successors, (564), 229 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:43,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 564 transitions. [2022-11-19 08:30:43,948 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 564 transitions. Word has length 5 [2022-11-19 08:30:43,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:30:43,949 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 564 transitions. [2022-11-19 08:30:43,949 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) [2022-11-19 08:30:43,949 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 564 transitions. [2022-11-19 08:30:43,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 08:30:43,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:30:43,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:30:43,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:30:43,951 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:30:43,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:30:43,952 INFO L85 PathProgramCache]: Analyzing trace with hash 802642083, now seen corresponding path program 1 times [2022-11-19 08:30:43,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:30:43,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203104900] [2022-11-19 08:30:43,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:30:43,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:30:43,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:30:44,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:30:44,331 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:30:44,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203104900] [2022-11-19 08:30:44,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203104900] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:30:44,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:30:44,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 08:30:44,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806868601] [2022-11-19 08:30:44,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:30:44,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:30:44,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:30:44,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:30:44,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:30:44,335 INFO L87 Difference]: Start difference. First operand 230 states and 564 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) [2022-11-19 08:30:44,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:30:44,426 INFO L93 Difference]: Finished difference Result 212 states and 513 transitions. [2022-11-19 08:30:44,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:30:44,427 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 [2022-11-19 08:30:44,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:30:44,428 INFO L225 Difference]: With dead ends: 212 [2022-11-19 08:30:44,428 INFO L226 Difference]: Without dead ends: 212 [2022-11-19 08:30:44,429 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 [2022-11-19 08:30:44,430 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 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 [2022-11-19 08:30:44,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:30:44,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-11-19 08:30:44,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2022-11-19 08:30:44,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 210 states have (on average 2.442857142857143) internal successors, (513), 211 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:44,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 513 transitions. [2022-11-19 08:30:44,439 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 513 transitions. Word has length 7 [2022-11-19 08:30:44,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:30:44,440 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 513 transitions. [2022-11-19 08:30:44,440 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) [2022-11-19 08:30:44,440 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 513 transitions. [2022-11-19 08:30:44,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:30:44,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:30:44,441 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:30:44,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:30:44,441 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:30:44,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:30:44,442 INFO L85 PathProgramCache]: Analyzing trace with hash -887898373, now seen corresponding path program 1 times [2022-11-19 08:30:44,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:30:44,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107734907] [2022-11-19 08:30:44,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:30:44,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:30:44,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:30:44,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:30:44,815 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:30:44,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107734907] [2022-11-19 08:30:44,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107734907] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:30:44,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:30:44,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:30:44,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600261434] [2022-11-19 08:30:44,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:30:44,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:30:44,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:30:44,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:30:44,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:30:44,817 INFO L87 Difference]: Start difference. First operand 212 states and 513 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:45,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:30:45,007 INFO L93 Difference]: Finished difference Result 176 states and 417 transitions. [2022-11-19 08:30:45,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:30:45,007 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2022-11-19 08:30:45,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:30:45,008 INFO L225 Difference]: With dead ends: 176 [2022-11-19 08:30:45,009 INFO L226 Difference]: Without dead ends: 140 [2022-11-19 08:30:45,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:30:45,010 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 26 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:30:45,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 0 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:30:45,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-11-19 08:30:45,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2022-11-19 08:30:45,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 139 states have (on average 2.3093525179856114) internal successors, (321), 139 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:45,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 321 transitions. [2022-11-19 08:30:45,016 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 321 transitions. Word has length 8 [2022-11-19 08:30:45,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:30:45,016 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 321 transitions. [2022-11-19 08:30:45,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:45,017 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 321 transitions. [2022-11-19 08:30:45,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:30:45,017 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:30:45,018 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:30:45,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:30:45,018 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:30:45,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:30:45,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1297205405, now seen corresponding path program 1 times [2022-11-19 08:30:45,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:30:45,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694084432] [2022-11-19 08:30:45,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:30:45,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:30:45,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:30:45,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:30:45,685 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:30:45,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694084432] [2022-11-19 08:30:45,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694084432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:30:45,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:30:45,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:30:45,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80726238] [2022-11-19 08:30:45,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:30:45,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:30:45,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:30:45,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:30:45,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:30:45,687 INFO L87 Difference]: Start difference. First operand 140 states and 321 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:45,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:30:45,794 INFO L93 Difference]: Finished difference Result 134 states and 305 transitions. [2022-11-19 08:30:45,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:30:45,795 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2022-11-19 08:30:45,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:30:45,796 INFO L225 Difference]: With dead ends: 134 [2022-11-19 08:30:45,796 INFO L226 Difference]: Without dead ends: 134 [2022-11-19 08:30:45,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:30:45,797 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 11 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:30:45,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 0 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:30:45,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-11-19 08:30:45,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2022-11-19 08:30:45,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 2.293233082706767) internal successors, (305), 133 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:45,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 305 transitions. [2022-11-19 08:30:45,802 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 305 transitions. Word has length 10 [2022-11-19 08:30:45,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:30:45,802 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 305 transitions. [2022-11-19 08:30:45,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:45,802 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 305 transitions. [2022-11-19 08:30:45,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 08:30:45,810 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:30:45,810 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:30:45,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:30:45,810 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:30:45,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:30:45,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1031698364, now seen corresponding path program 1 times [2022-11-19 08:30:45,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:30:45,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544135150] [2022-11-19 08:30:45,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:30:45,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:30:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:30:47,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:30:47,730 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:30:47,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544135150] [2022-11-19 08:30:47,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544135150] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:30:47,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:30:47,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:30:47,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153197714] [2022-11-19 08:30:47,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:30:47,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:30:47,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:30:47,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:30:47,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:30:47,732 INFO L87 Difference]: Start difference. First operand 134 states and 305 transitions. Second operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:48,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:30:48,284 INFO L93 Difference]: Finished difference Result 174 states and 393 transitions. [2022-11-19 08:30:48,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 08:30:48,285 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2022-11-19 08:30:48,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:30:48,287 INFO L225 Difference]: With dead ends: 174 [2022-11-19 08:30:48,287 INFO L226 Difference]: Without dead ends: 174 [2022-11-19 08:30:48,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-11-19 08:30:48,288 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 46 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:30:48,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 0 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 08:30:48,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-11-19 08:30:48,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 152. [2022-11-19 08:30:48,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 151 states have (on average 2.2980132450331126) internal successors, (347), 151 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:48,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 347 transitions. [2022-11-19 08:30:48,295 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 347 transitions. Word has length 12 [2022-11-19 08:30:48,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:30:48,296 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 347 transitions. [2022-11-19 08:30:48,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:48,296 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 347 transitions. [2022-11-19 08:30:48,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 08:30:48,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:30:48,297 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:30:48,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:30:48,297 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:30:48,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:30:48,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1074791686, now seen corresponding path program 2 times [2022-11-19 08:30:48,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:30:48,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386601857] [2022-11-19 08:30:48,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:30:48,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:30:48,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:30:49,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:30:49,568 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:30:49,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386601857] [2022-11-19 08:30:49,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386601857] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:30:49,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:30:49,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:30:49,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336630940] [2022-11-19 08:30:49,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:30:49,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:30:49,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:30:49,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:30:49,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:30:49,572 INFO L87 Difference]: Start difference. First operand 152 states and 347 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:49,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:30:49,843 INFO L93 Difference]: Finished difference Result 196 states and 453 transitions. [2022-11-19 08:30:49,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:30:49,844 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2022-11-19 08:30:49,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:30:49,845 INFO L225 Difference]: With dead ends: 196 [2022-11-19 08:30:49,845 INFO L226 Difference]: Without dead ends: 196 [2022-11-19 08:30:49,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:30:49,847 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:30:49,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 0 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:30:49,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-11-19 08:30:49,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 160. [2022-11-19 08:30:49,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 2.308176100628931) internal successors, (367), 159 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:49,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 367 transitions. [2022-11-19 08:30:49,853 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 367 transitions. Word has length 12 [2022-11-19 08:30:49,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:30:49,853 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 367 transitions. [2022-11-19 08:30:49,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:49,854 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 367 transitions. [2022-11-19 08:30:49,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 08:30:49,854 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:30:49,855 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:30:49,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 08:30:49,855 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:30:49,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:30:49,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1120407256, now seen corresponding path program 3 times [2022-11-19 08:30:49,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:30:49,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711082150] [2022-11-19 08:30:49,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:30:49,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:30:49,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:30:50,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:30:50,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:30:50,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711082150] [2022-11-19 08:30:50,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711082150] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:30:50,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:30:50,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:30:50,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352045441] [2022-11-19 08:30:50,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:30:50,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:30:50,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:30:50,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:30:50,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:30:50,515 INFO L87 Difference]: Start difference. First operand 160 states and 367 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:50,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:30:50,867 INFO L93 Difference]: Finished difference Result 206 states and 459 transitions. [2022-11-19 08:30:50,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 08:30:50,868 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2022-11-19 08:30:50,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:30:50,869 INFO L225 Difference]: With dead ends: 206 [2022-11-19 08:30:50,869 INFO L226 Difference]: Without dead ends: 206 [2022-11-19 08:30:50,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:30:50,870 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 31 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:30:50,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 0 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 08:30:50,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-11-19 08:30:50,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 166. [2022-11-19 08:30:50,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 165 states have (on average 2.309090909090909) internal successors, (381), 165 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:50,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 381 transitions. [2022-11-19 08:30:50,878 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 381 transitions. Word has length 12 [2022-11-19 08:30:50,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:30:50,879 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 381 transitions. [2022-11-19 08:30:50,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:50,879 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 381 transitions. [2022-11-19 08:30:50,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 08:30:50,880 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:30:50,880 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:30:50,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 08:30:50,880 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:30:50,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:30:50,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1915456889, now seen corresponding path program 1 times [2022-11-19 08:30:50,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:30:50,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031301388] [2022-11-19 08:30:50,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:30:50,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:30:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:30:51,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:30:51,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:30:51,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031301388] [2022-11-19 08:30:51,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031301388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:30:51,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:30:51,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:30:51,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540646890] [2022-11-19 08:30:51,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:30:51,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:30:51,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:30:51,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:30:51,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:30:51,237 INFO L87 Difference]: Start difference. First operand 166 states and 381 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:51,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:30:51,370 INFO L93 Difference]: Finished difference Result 245 states and 548 transitions. [2022-11-19 08:30:51,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:30:51,370 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2022-11-19 08:30:51,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:30:51,371 INFO L225 Difference]: With dead ends: 245 [2022-11-19 08:30:51,371 INFO L226 Difference]: Without dead ends: 178 [2022-11-19 08:30:51,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:30:51,372 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:30:51,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:30:51,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-11-19 08:30:51,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2022-11-19 08:30:51,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 177 states have (on average 2.169491525423729) internal successors, (384), 177 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:51,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 384 transitions. [2022-11-19 08:30:51,378 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 384 transitions. Word has length 13 [2022-11-19 08:30:51,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:30:51,378 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 384 transitions. [2022-11-19 08:30:51,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:51,379 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 384 transitions. [2022-11-19 08:30:51,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 08:30:51,379 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:30:51,379 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:30:51,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 08:30:51,380 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:30:51,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:30:51,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1917875540, now seen corresponding path program 1 times [2022-11-19 08:30:51,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:30:51,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130903015] [2022-11-19 08:30:51,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:30:51,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:30:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:30:53,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:30:53,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:30:53,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130903015] [2022-11-19 08:30:53,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130903015] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:30:53,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:30:53,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:30:53,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229060974] [2022-11-19 08:30:53,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:30:53,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:30:53,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:30:53,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:30:53,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:30:53,031 INFO L87 Difference]: Start difference. First operand 178 states and 384 transitions. Second operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:53,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:30:53,535 INFO L93 Difference]: Finished difference Result 200 states and 419 transitions. [2022-11-19 08:30:53,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 08:30:53,536 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2022-11-19 08:30:53,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:30:53,538 INFO L225 Difference]: With dead ends: 200 [2022-11-19 08:30:53,538 INFO L226 Difference]: Without dead ends: 196 [2022-11-19 08:30:53,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:30:53,539 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 39 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:30:53,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 0 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 08:30:53,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-11-19 08:30:53,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 172. [2022-11-19 08:30:53,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 171 states have (on average 2.192982456140351) internal successors, (375), 171 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:53,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 375 transitions. [2022-11-19 08:30:53,545 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 375 transitions. Word has length 13 [2022-11-19 08:30:53,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:30:53,546 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 375 transitions. [2022-11-19 08:30:53,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:53,546 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 375 transitions. [2022-11-19 08:30:53,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 08:30:53,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:30:53,547 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:30:53,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 08:30:53,547 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:30:53,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:30:53,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1917875819, now seen corresponding path program 2 times [2022-11-19 08:30:53,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:30:53,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278234158] [2022-11-19 08:30:53,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:30:53,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:30:53,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:30:54,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:30:54,212 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:30:54,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278234158] [2022-11-19 08:30:54,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278234158] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:30:54,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:30:54,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:30:54,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412009329] [2022-11-19 08:30:54,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:30:54,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:30:54,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:30:54,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:30:54,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:30:54,214 INFO L87 Difference]: Start difference. First operand 172 states and 375 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:54,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:30:54,391 INFO L93 Difference]: Finished difference Result 188 states and 403 transitions. [2022-11-19 08:30:54,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:30:54,392 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2022-11-19 08:30:54,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:30:54,393 INFO L225 Difference]: With dead ends: 188 [2022-11-19 08:30:54,393 INFO L226 Difference]: Without dead ends: 188 [2022-11-19 08:30:54,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:30:54,394 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:30:54,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 0 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:30:54,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-11-19 08:30:54,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 174. [2022-11-19 08:30:54,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 173 states have (on average 2.179190751445087) internal successors, (377), 173 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:54,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 377 transitions. [2022-11-19 08:30:54,400 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 377 transitions. Word has length 13 [2022-11-19 08:30:54,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:30:54,401 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 377 transitions. [2022-11-19 08:30:54,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:54,401 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 377 transitions. [2022-11-19 08:30:54,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 08:30:54,402 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:30:54,402 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:30:54,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 08:30:54,402 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:30:54,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:30:54,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1041198774, now seen corresponding path program 2 times [2022-11-19 08:30:54,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:30:54,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617798400] [2022-11-19 08:30:54,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:30:54,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:30:54,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:30:55,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:30:55,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:30:55,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617798400] [2022-11-19 08:30:55,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617798400] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:30:55,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:30:55,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:30:55,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119265750] [2022-11-19 08:30:55,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:30:55,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:30:55,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:30:55,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:30:55,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:30:55,961 INFO L87 Difference]: Start difference. First operand 174 states and 377 transitions. Second operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:56,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:30:56,236 INFO L93 Difference]: Finished difference Result 206 states and 452 transitions. [2022-11-19 08:30:56,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:30:56,236 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2022-11-19 08:30:56,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:30:56,238 INFO L225 Difference]: With dead ends: 206 [2022-11-19 08:30:56,238 INFO L226 Difference]: Without dead ends: 206 [2022-11-19 08:30:56,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-11-19 08:30:56,239 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 30 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:30:56,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 0 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:30:56,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-11-19 08:30:56,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 186. [2022-11-19 08:30:56,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 185 states have (on average 2.1945945945945944) internal successors, (406), 185 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:56,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 406 transitions. [2022-11-19 08:30:56,247 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 406 transitions. Word has length 13 [2022-11-19 08:30:56,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:30:56,248 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 406 transitions. [2022-11-19 08:30:56,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:56,248 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 406 transitions. [2022-11-19 08:30:56,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 08:30:56,249 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:30:56,249 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:30:56,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-19 08:30:56,249 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:30:56,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:30:56,250 INFO L85 PathProgramCache]: Analyzing trace with hash 2024755320, now seen corresponding path program 3 times [2022-11-19 08:30:56,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:30:56,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672534648] [2022-11-19 08:30:56,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:30:56,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:30:56,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:30:57,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:30:57,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:30:57,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672534648] [2022-11-19 08:30:57,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672534648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:30:57,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:30:57,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:30:57,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711129865] [2022-11-19 08:30:57,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:30:57,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:30:57,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:30:57,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:30:57,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:30:57,926 INFO L87 Difference]: Start difference. First operand 186 states and 406 transitions. Second operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:58,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:30:58,306 INFO L93 Difference]: Finished difference Result 228 states and 487 transitions. [2022-11-19 08:30:58,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:30:58,306 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2022-11-19 08:30:58,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:30:58,308 INFO L225 Difference]: With dead ends: 228 [2022-11-19 08:30:58,308 INFO L226 Difference]: Without dead ends: 216 [2022-11-19 08:30:58,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-19 08:30:58,309 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 24 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:30:58,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 0 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 08:30:58,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-11-19 08:30:58,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 155. [2022-11-19 08:30:58,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 2.1493506493506493) internal successors, (331), 154 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:58,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 331 transitions. [2022-11-19 08:30:58,314 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 331 transitions. Word has length 13 [2022-11-19 08:30:58,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:30:58,314 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 331 transitions. [2022-11-19 08:30:58,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:58,315 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 331 transitions. [2022-11-19 08:30:58,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-19 08:30:58,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:30:58,316 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:30:58,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-19 08:30:58,316 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:30:58,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:30:58,317 INFO L85 PathProgramCache]: Analyzing trace with hash -675394427, now seen corresponding path program 1 times [2022-11-19 08:30:58,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:30:58,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933525309] [2022-11-19 08:30:58,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:30:58,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:30:58,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:30:58,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:30:58,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:30:58,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933525309] [2022-11-19 08:30:58,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933525309] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:30:58,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:30:58,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:30:58,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575710581] [2022-11-19 08:30:58,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:30:58,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:30:58,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:30:58,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:30:58,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:30:58,781 INFO L87 Difference]: Start difference. First operand 155 states and 331 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:58,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:30:58,993 INFO L93 Difference]: Finished difference Result 250 states and 520 transitions. [2022-11-19 08:30:58,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:30:58,994 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2022-11-19 08:30:58,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:30:58,995 INFO L225 Difference]: With dead ends: 250 [2022-11-19 08:30:58,995 INFO L226 Difference]: Without dead ends: 139 [2022-11-19 08:30:58,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:30:58,995 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 27 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:30:58,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 0 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:30:58,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-11-19 08:30:58,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2022-11-19 08:30:59,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 138 states have (on average 2.0869565217391304) internal successors, (288), 138 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:59,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 288 transitions. [2022-11-19 08:30:59,001 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 288 transitions. Word has length 14 [2022-11-19 08:30:59,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:30:59,001 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 288 transitions. [2022-11-19 08:30:59,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:59,001 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 288 transitions. [2022-11-19 08:30:59,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-19 08:30:59,002 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:30:59,002 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:30:59,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-19 08:30:59,002 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:30:59,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:30:59,003 INFO L85 PathProgramCache]: Analyzing trace with hash 2082582351, now seen corresponding path program 2 times [2022-11-19 08:30:59,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:30:59,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9038355] [2022-11-19 08:30:59,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:30:59,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:30:59,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:30:59,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:30:59,710 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:30:59,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9038355] [2022-11-19 08:30:59,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9038355] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:30:59,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:30:59,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:30:59,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003133948] [2022-11-19 08:30:59,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:30:59,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 08:30:59,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:30:59,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 08:30:59,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:30:59,712 INFO L87 Difference]: Start difference. First operand 139 states and 288 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:59,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:30:59,971 INFO L93 Difference]: Finished difference Result 164 states and 330 transitions. [2022-11-19 08:30:59,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 08:30:59,972 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2022-11-19 08:30:59,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:30:59,973 INFO L225 Difference]: With dead ends: 164 [2022-11-19 08:30:59,973 INFO L226 Difference]: Without dead ends: 137 [2022-11-19 08:30:59,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-19 08:30:59,974 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 38 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:30:59,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 0 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:30:59,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-11-19 08:30:59,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 116. [2022-11-19 08:30:59,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 2.026086956521739) internal successors, (233), 115 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:59,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 233 transitions. [2022-11-19 08:30:59,978 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 233 transitions. Word has length 14 [2022-11-19 08:30:59,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:30:59,978 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 233 transitions. [2022-11-19 08:30:59,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:30:59,978 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 233 transitions. [2022-11-19 08:30:59,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-19 08:30:59,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:30:59,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:30:59,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-19 08:30:59,979 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:30:59,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:30:59,980 INFO L85 PathProgramCache]: Analyzing trace with hash -972066725, now seen corresponding path program 1 times [2022-11-19 08:30:59,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:30:59,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595250904] [2022-11-19 08:30:59,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:30:59,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:31:00,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:01,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:31:01,114 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:31:01,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595250904] [2022-11-19 08:31:01,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595250904] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:31:01,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:31:01,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 08:31:01,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547330089] [2022-11-19 08:31:01,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:31:01,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:31:01,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:31:01,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:31:01,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:31:01,116 INFO L87 Difference]: Start difference. First operand 116 states and 233 transitions. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:31:01,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:31:01,438 INFO L93 Difference]: Finished difference Result 120 states and 235 transitions. [2022-11-19 08:31:01,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 08:31:01,439 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2022-11-19 08:31:01,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:31:01,439 INFO L225 Difference]: With dead ends: 120 [2022-11-19 08:31:01,439 INFO L226 Difference]: Without dead ends: 103 [2022-11-19 08:31:01,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:31:01,440 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 38 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:31:01,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 0 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:31:01,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-11-19 08:31:01,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 91. [2022-11-19 08:31:01,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 2.077777777777778) internal successors, (187), 90 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:31:01,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 187 transitions. [2022-11-19 08:31:01,444 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 187 transitions. Word has length 14 [2022-11-19 08:31:01,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:31:01,444 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 187 transitions. [2022-11-19 08:31:01,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:31:01,444 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 187 transitions. [2022-11-19 08:31:01,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-19 08:31:01,445 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:01,445 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:31:01,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-19 08:31:01,445 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:31:01,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:01,446 INFO L85 PathProgramCache]: Analyzing trace with hash -2044638559, now seen corresponding path program 1 times [2022-11-19 08:31:01,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:31:01,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635470598] [2022-11-19 08:31:01,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:01,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:31:01,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:02,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:31:02,204 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:31:02,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635470598] [2022-11-19 08:31:02,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635470598] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:31:02,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:31:02,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:31:02,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343973254] [2022-11-19 08:31:02,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:31:02,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 08:31:02,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:31:02,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 08:31:02,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:31:02,206 INFO L87 Difference]: Start difference. First operand 91 states and 187 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:31:02,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:31:02,396 INFO L93 Difference]: Finished difference Result 115 states and 229 transitions. [2022-11-19 08:31:02,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:31:02,396 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2022-11-19 08:31:02,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:31:02,397 INFO L225 Difference]: With dead ends: 115 [2022-11-19 08:31:02,397 INFO L226 Difference]: Without dead ends: 87 [2022-11-19 08:31:02,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:31:02,398 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:31:02,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 0 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:31:02,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-19 08:31:02,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 75. [2022-11-19 08:31:02,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 2.054054054054054) internal successors, (152), 74 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:31:02,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 152 transitions. [2022-11-19 08:31:02,401 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 152 transitions. Word has length 15 [2022-11-19 08:31:02,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:31:02,402 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 152 transitions. [2022-11-19 08:31:02,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:31:02,402 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 152 transitions. [2022-11-19 08:31:02,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-19 08:31:02,402 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:02,402 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:31:02,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-19 08:31:02,403 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-19 08:31:02,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:02,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1770886935, now seen corresponding path program 2 times [2022-11-19 08:31:02,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:31:02,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030233434] [2022-11-19 08:31:02,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:02,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:31:02,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:04,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:31:04,227 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:31:04,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030233434] [2022-11-19 08:31:04,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030233434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:31:04,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:31:04,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:31:04,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269095114] [2022-11-19 08:31:04,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:31:04,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:31:04,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:31:04,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:31:04,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:31:04,229 INFO L87 Difference]: Start difference. First operand 75 states and 152 transitions. Second operand has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:31:04,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:31:04,714 INFO L93 Difference]: Finished difference Result 71 states and 144 transitions. [2022-11-19 08:31:04,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 08:31:04,715 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2022-11-19 08:31:04,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:31:04,715 INFO L225 Difference]: With dead ends: 71 [2022-11-19 08:31:04,715 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 08:31:04,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-11-19 08:31:04,716 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 37 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:31:04,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 0 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:31:04,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 08:31:04,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 08:31:04,717 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) [2022-11-19 08:31:04,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 08:31:04,717 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2022-11-19 08:31:04,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:31:04,717 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 08:31:04,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:31:04,717 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 08:31:04,718 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 08:31:04,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (9 of 10 remaining) [2022-11-19 08:31:04,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 10 remaining) [2022-11-19 08:31:04,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 10 remaining) [2022-11-19 08:31:04,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 10 remaining) [2022-11-19 08:31:04,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 10 remaining) [2022-11-19 08:31:04,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (4 of 10 remaining) [2022-11-19 08:31:04,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (3 of 10 remaining) [2022-11-19 08:31:04,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 10 remaining) [2022-11-19 08:31:04,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 10 remaining) [2022-11-19 08:31:04,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 10 remaining) [2022-11-19 08:31:04,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-19 08:31:04,725 INFO L444 BasicCegarLoop]: Path program histogram: [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-19 08:31:04,730 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-19 08:31:04,730 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:31:04,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:31:04 BasicIcfg [2022-11-19 08:31:04,735 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:31:04,736 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:31:04,736 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:31:04,736 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:31:04,736 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:30:36" (3/4) ... [2022-11-19 08:31:04,739 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 08:31:04,744 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-19 08:31:04,744 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-19 08:31:04,750 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2022-11-19 08:31:04,751 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-19 08:31:04,751 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-19 08:31:04,751 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 08:31:04,785 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd39e25-881d-4d3c-b27b-8aa0b486b859/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 08:31:04,785 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:31:04,786 INFO L158 Benchmark]: Toolchain (without parser) took 30229.21ms. Allocated memory was 136.3MB in the beginning and 520.1MB in the end (delta: 383.8MB). Free memory was 100.4MB in the beginning and 257.5MB in the end (delta: -157.1MB). Peak memory consumption was 226.8MB. Max. memory is 16.1GB. [2022-11-19 08:31:04,786 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory is still 40.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:31:04,786 INFO L158 Benchmark]: CACSL2BoogieTranslator took 700.71ms. Allocated memory is still 136.3MB. Free memory was 100.1MB in the beginning and 95.5MB in the end (delta: 4.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 08:31:04,786 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.47ms. Allocated memory is still 136.3MB. Free memory was 95.5MB in the beginning and 92.7MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 08:31:04,787 INFO L158 Benchmark]: Boogie Preprocessor took 63.69ms. Allocated memory is still 136.3MB. Free memory was 92.7MB in the beginning and 90.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:31:04,787 INFO L158 Benchmark]: RCFGBuilder took 1038.63ms. Allocated memory is still 136.3MB. Free memory was 90.6MB in the beginning and 43.7MB in the end (delta: 46.9MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2022-11-19 08:31:04,787 INFO L158 Benchmark]: TraceAbstraction took 28285.87ms. Allocated memory was 136.3MB in the beginning and 520.1MB in the end (delta: 383.8MB). Free memory was 43.1MB in the beginning and 260.6MB in the end (delta: -217.6MB). Peak memory consumption was 170.4MB. Max. memory is 16.1GB. [2022-11-19 08:31:04,788 INFO L158 Benchmark]: Witness Printer took 49.41ms. Allocated memory is still 520.1MB. Free memory was 260.6MB in the beginning and 257.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:31:04,789 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory is still 40.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 700.71ms. Allocated memory is still 136.3MB. Free memory was 100.1MB in the beginning and 95.5MB in the end (delta: 4.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.47ms. Allocated memory is still 136.3MB. Free memory was 95.5MB in the beginning and 92.7MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.69ms. Allocated memory is still 136.3MB. Free memory was 92.7MB in the beginning and 90.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1038.63ms. Allocated memory is still 136.3MB. Free memory was 90.6MB in the beginning and 43.7MB in the end (delta: 46.9MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * TraceAbstraction took 28285.87ms. Allocated memory was 136.3MB in the beginning and 520.1MB in the end (delta: 383.8MB). Free memory was 43.1MB in the beginning and 260.6MB in the end (delta: -217.6MB). Peak memory consumption was 170.4MB. Max. memory is 16.1GB. * Witness Printer took 49.41ms. Allocated memory is still 520.1MB. Free memory was 260.6MB in the beginning and 257.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.2s, 112 PlacesBefore, 34 PlacesAfterwards, 107 TransitionsBefore, 28 TransitionsAfterwards, 1528 CoEnabledTransitionPairs, 7 FixpointIterations, 48 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 105 TotalNumberOfCompositions, 4301 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1785, independent: 1622, independent conditional: 0, independent unconditional: 1622, dependent: 163, dependent conditional: 0, dependent unconditional: 163, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1032, independent: 985, independent conditional: 0, independent unconditional: 985, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1032, independent: 957, independent conditional: 0, independent unconditional: 957, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 75, independent: 28, independent conditional: 0, independent unconditional: 28, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 596, independent: 54, independent conditional: 0, independent unconditional: 54, dependent: 542, dependent conditional: 0, dependent unconditional: 542, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1785, independent: 637, independent conditional: 0, independent unconditional: 637, dependent: 116, dependent conditional: 0, dependent unconditional: 116, unknown: 1032, unknown conditional: 0, unknown unconditional: 1032] , Statistics on independence cache: Total cache size (in pairs): 73, Positive cache size: 55, Positive conditional cache size: 0, Positive unconditional cache size: 55, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, 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: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed 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: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 834]: 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 5 procedures, 128 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 28.1s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 431 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 431 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 348 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1641 IncrementalHoareTripleChecker+Invalid, 1989 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 348 mSolverCounterUnsat, 0 mSDtfsCounter, 1641 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=292occurred in iteration=0, InterpolantAutomatonStates: 107, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 18 MinimizatonAttempts, 262 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 15.9s InterpolantComputationTime, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 3295 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-19 08:31:04,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd39e25-881d-4d3c-b27b-8aa0b486b859/bin/utaipan-I9t0OCRTmS/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