./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-tiling/tcpy.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-tiling/tcpy.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a747677fdea16741fbb3fca3d9510254677728ef5906b9bf8e219064accd3a39 --- 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-5e519f3 [2022-11-03 03:55:46,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:55:46,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:55:46,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:55:46,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:55:46,261 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:55:46,262 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:55:46,264 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:55:46,266 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:55:46,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:55:46,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:55:46,269 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:55:46,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:55:46,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:55:46,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:55:46,273 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:55:46,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:55:46,275 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:55:46,277 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:55:46,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:55:46,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:55:46,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:55:46,282 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:55:46,283 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:55:46,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:55:46,287 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:55:46,287 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:55:46,288 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:55:46,289 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:55:46,290 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:55:46,290 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:55:46,291 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:55:46,298 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:55:46,299 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:55:46,300 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:55:46,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:55:46,301 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:55:46,302 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:55:46,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:55:46,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:55:46,304 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:55:46,308 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 03:55:46,341 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:55:46,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:55:46,348 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:55:46,348 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:55:46,349 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:55:46,349 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:55:46,349 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:55:46,350 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:55:46,350 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:55:46,350 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:55:46,351 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:55:46,351 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:55:46,352 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:55:46,352 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:55:46,352 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:55:46,352 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:55:46,352 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:55:46,353 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:55:46,353 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:55:46,353 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:55:46,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:55:46,354 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:55:46,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:55:46,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:55:46,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:55:46,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:55:46,357 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:55:46,357 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:55:46,357 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:55:46,357 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:55:46,358 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:55:46,358 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:55:46,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:55:46,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:55:46,359 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:55:46,359 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:55:46,359 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:55:46,359 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:55:46,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:55:46,360 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:55:46,360 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:55:46,361 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_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a747677fdea16741fbb3fca3d9510254677728ef5906b9bf8e219064accd3a39 [2022-11-03 03:55:46,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:55:46,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:55:46,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:55:46,688 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:55:46,688 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:55:46,690 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/array-tiling/tcpy.c [2022-11-03 03:55:46,750 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/data/1f7455c1b/a6eb754cd39a44398dfaa238bb3cbd99/FLAG2548f5979 [2022-11-03 03:55:47,235 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:55:47,236 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/sv-benchmarks/c/array-tiling/tcpy.c [2022-11-03 03:55:47,243 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/data/1f7455c1b/a6eb754cd39a44398dfaa238bb3cbd99/FLAG2548f5979 [2022-11-03 03:55:47,602 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/data/1f7455c1b/a6eb754cd39a44398dfaa238bb3cbd99 [2022-11-03 03:55:47,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:55:47,606 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:55:47,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:55:47,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:55:47,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:55:47,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:55:47" (1/1) ... [2022-11-03 03:55:47,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42f63e85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:47, skipping insertion in model container [2022-11-03 03:55:47,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:55:47" (1/1) ... [2022-11-03 03:55:47,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:55:47,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:55:47,797 WARN L230 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_65c6e276-7050-456b-9ef2-20d129fa4afc/sv-benchmarks/c/array-tiling/tcpy.c[395,408] [2022-11-03 03:55:47,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:55:47,878 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:55:47,899 WARN L230 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_65c6e276-7050-456b-9ef2-20d129fa4afc/sv-benchmarks/c/array-tiling/tcpy.c[395,408] [2022-11-03 03:55:47,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:55:47,933 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:55:47,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:47 WrapperNode [2022-11-03 03:55:47,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:55:47,935 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:55:47,935 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:55:47,935 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:55:47,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:47" (1/1) ... [2022-11-03 03:55:47,966 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:47" (1/1) ... [2022-11-03 03:55:47,999 INFO L138 Inliner]: procedures = 16, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 82 [2022-11-03 03:55:48,001 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:55:48,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:55:48,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:55:48,004 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:55:48,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:47" (1/1) ... [2022-11-03 03:55:48,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:47" (1/1) ... [2022-11-03 03:55:48,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:47" (1/1) ... [2022-11-03 03:55:48,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:47" (1/1) ... [2022-11-03 03:55:48,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:47" (1/1) ... [2022-11-03 03:55:48,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:47" (1/1) ... [2022-11-03 03:55:48,041 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:47" (1/1) ... [2022-11-03 03:55:48,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:47" (1/1) ... [2022-11-03 03:55:48,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:55:48,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:55:48,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:55:48,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:55:48,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:47" (1/1) ... [2022-11-03 03:55:48,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:55:48,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:55:48,084 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:55:48,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:55:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:55:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:55:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:55:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:55:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:55:48,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:55:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:55:48,211 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:55:48,213 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:55:48,455 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:55:48,520 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:55:48,520 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-03 03:55:48,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:55:48 BoogieIcfgContainer [2022-11-03 03:55:48,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:55:48,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:55:48,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:55:48,532 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:55:48,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:55:47" (1/3) ... [2022-11-03 03:55:48,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e6edc36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:55:48, skipping insertion in model container [2022-11-03 03:55:48,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:47" (2/3) ... [2022-11-03 03:55:48,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e6edc36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:55:48, skipping insertion in model container [2022-11-03 03:55:48,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:55:48" (3/3) ... [2022-11-03 03:55:48,535 INFO L112 eAbstractionObserver]: Analyzing ICFG tcpy.c [2022-11-03 03:55:48,568 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:55:48,569 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:55:48,616 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:55:48,622 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@14916c99, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:55:48,623 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:55:48,627 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:55:48,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-03 03:55:48,633 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:55:48,633 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:55:48,634 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:55:48,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:55:48,639 INFO L85 PathProgramCache]: Analyzing trace with hash -680536009, now seen corresponding path program 1 times [2022-11-03 03:55:48,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:55:48,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328331656] [2022-11-03 03:55:48,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:55:48,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:55:48,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:55:49,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:55:49,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:55:49,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328331656] [2022-11-03 03:55:49,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328331656] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:55:49,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:55:49,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:55:49,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535243500] [2022-11-03 03:55:49,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:55:49,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:55:49,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:55:49,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:55:49,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:55:49,071 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 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 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2022-11-03 03:55:49,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:55:49,174 INFO L93 Difference]: Finished difference Result 24 states and 33 transitions. [2022-11-03 03:55:49,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:55:49,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 [2022-11-03 03:55:49,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:55:49,201 INFO L225 Difference]: With dead ends: 24 [2022-11-03 03:55:49,201 INFO L226 Difference]: Without dead ends: 11 [2022-11-03 03:55:49,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:55:49,210 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 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 [2022-11-03 03:55:49,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:55:49,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-03 03:55:49,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-03 03:55:49,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 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) [2022-11-03 03:55:49,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2022-11-03 03:55:49,240 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 8 [2022-11-03 03:55:49,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:55:49,241 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2022-11-03 03:55:49,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2022-11-03 03:55:49,241 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2022-11-03 03:55:49,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-03 03:55:49,242 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:55:49,242 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:55:49,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:55:49,242 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:55:49,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:55:49,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1007490258, now seen corresponding path program 1 times [2022-11-03 03:55:49,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:55:49,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668816229] [2022-11-03 03:55:49,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:55:49,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:55:49,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:55:49,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:55:49,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:55:49,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668816229] [2022-11-03 03:55:49,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668816229] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:55:49,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083036241] [2022-11-03 03:55:49,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:55:49,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:55:49,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:55:49,363 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:55:49,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:55:49,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:55:49,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 03:55:49,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:55:49,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:55:49,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:55:49,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:55:49,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083036241] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:55:49,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [707928753] [2022-11-03 03:55:49,585 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 03:55:49,585 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:55:49,590 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:55:49,600 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:55:49,601 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:55:49,844 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 03:55:49,845 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-03 03:55:49,878 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2022-11-03 03:55:49,972 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 26 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 103 [2022-11-03 03:55:50,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:50,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:50,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:50,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:50,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:50,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:50,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:50,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:50,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:50,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:50,297 INFO L356 Elim1Store]: treesize reduction 144, result has 13.3 percent of original size [2022-11-03 03:55:50,298 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 32 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 436 treesize of output 417 [2022-11-03 03:55:50,431 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-03 03:55:50,448 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:55:50,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [707928753] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:55:50,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:55:50,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 4, 4] total 11 [2022-11-03 03:55:50,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468782483] [2022-11-03 03:55:50,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:55:50,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:55:50,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:55:50,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:55:50,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-03 03:55:50,668 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:55:50,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:55:50,886 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2022-11-03 03:55:50,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:55:50,887 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2022-11-03 03:55:50,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:55:50,888 INFO L225 Difference]: With dead ends: 17 [2022-11-03 03:55:50,888 INFO L226 Difference]: Without dead ends: 12 [2022-11-03 03:55:50,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-03 03:55:50,890 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:55:50,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 12 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:55:50,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-03 03:55:50,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-03 03:55:50,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 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) [2022-11-03 03:55:50,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2022-11-03 03:55:50,896 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 9 [2022-11-03 03:55:50,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:55:50,897 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2022-11-03 03:55:50,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:55:50,897 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2022-11-03 03:55:50,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 03:55:50,898 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:55:50,898 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:55:50,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 03:55:51,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-03 03:55:51,115 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:55:51,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:55:51,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1160125243, now seen corresponding path program 1 times [2022-11-03 03:55:51,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:55:51,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498234264] [2022-11-03 03:55:51,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:55:51,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:55:51,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:55:51,288 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 03:55:51,288 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:55:51,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498234264] [2022-11-03 03:55:51,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498234264] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:55:51,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072367302] [2022-11-03 03:55:51,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:55:51,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:55:51,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:55:51,293 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:55:51,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 03:55:51,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:55:51,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 03:55:51,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:55:51,399 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 03:55:51,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:55:51,417 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 03:55:51,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072367302] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:55:51,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1796484355] [2022-11-03 03:55:51,420 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 03:55:51,420 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:55:51,421 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:55:51,421 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:55:51,421 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:55:51,599 INFO L356 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-03 03:55:51,599 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-11-03 03:55:51,749 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 03:55:51,750 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-03 03:55:51,817 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 26 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 98 [2022-11-03 03:55:52,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:52,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:52,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:52,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:52,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:52,024 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:52,090 INFO L356 Elim1Store]: treesize reduction 126, result has 21.7 percent of original size [2022-11-03 03:55:52,090 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 26 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 13 case distinctions, treesize of input 426 treesize of output 418 [2022-11-03 03:55:52,328 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-03 03:55:52,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:52,349 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:52,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:52,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:52,352 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:52,371 INFO L356 Elim1Store]: treesize reduction 44, result has 38.0 percent of original size [2022-11-03 03:55:52,371 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 53 [2022-11-03 03:55:52,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:52,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:52,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:52,416 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:52,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:52,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:52,420 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:52,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:52,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:52,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:52,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:52,427 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:52,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:52,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:52,431 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:52,464 INFO L356 Elim1Store]: treesize reduction 60, result has 31.0 percent of original size [2022-11-03 03:55:52,464 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 318 treesize of output 336 [2022-11-03 03:55:52,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:52,537 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:52,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:52,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:52,541 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:52,566 INFO L356 Elim1Store]: treesize reduction 44, result has 38.0 percent of original size [2022-11-03 03:55:52,567 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 53 [2022-11-03 03:55:52,640 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:55:53,230 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '228#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= ~MAX~0 100000) (= |ULTIMATE.start_main_#t~mem13#1| (select (select |#memory_int| |ULTIMATE.start_main_~acopy~0#1.base|) (+ (* |ULTIMATE.start_main_~i~0#1| 4) |ULTIMATE.start_main_~acopy~0#1.offset|))) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 4))) |ULTIMATE.start_main_#t~mem14#1|) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start_main_~acopy~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= |ULTIMATE.start_main_#t~mem14#1| |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (< |ULTIMATE.start_main_~i~0#1| ~SIZE~0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 03:55:53,231 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:55:53,231 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:55:53,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-03 03:55:53,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176105312] [2022-11-03 03:55:53,231 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 03:55:53,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:55:53,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:55:53,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:55:53,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-11-03 03:55:53,233 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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) [2022-11-03 03:55:53,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:55:53,276 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2022-11-03 03:55:53,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:55:53,277 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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 10 [2022-11-03 03:55:53,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:55:53,277 INFO L225 Difference]: With dead ends: 21 [2022-11-03 03:55:53,277 INFO L226 Difference]: Without dead ends: 13 [2022-11-03 03:55:53,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-11-03 03:55:53,279 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:55:53,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 14 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:55:53,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-03 03:55:53,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-11-03 03:55:53,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 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) [2022-11-03 03:55:53,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2022-11-03 03:55:53,286 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 10 [2022-11-03 03:55:53,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:55:53,286 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-11-03 03:55:53,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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) [2022-11-03 03:55:53,286 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2022-11-03 03:55:53,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-03 03:55:53,287 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:55:53,287 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:55:53,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 03:55:53,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:55:53,488 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:55:53,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:55:53,489 INFO L85 PathProgramCache]: Analyzing trace with hash -144270058, now seen corresponding path program 2 times [2022-11-03 03:55:53,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:55:53,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737192563] [2022-11-03 03:55:53,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:55:53,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:55:53,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:55:53,958 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 03:55:53,959 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:55:53,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737192563] [2022-11-03 03:55:53,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737192563] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:55:53,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696260294] [2022-11-03 03:55:53,960 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 03:55:53,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:55:53,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:55:53,963 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:55:53,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 03:55:54,041 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-03 03:55:54,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:55:54,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 03:55:54,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:55:54,053 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-03 03:55:54,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:54,103 INFO L356 Elim1Store]: treesize reduction 20, result has 47.4 percent of original size [2022-11-03 03:55:54,104 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 33 [2022-11-03 03:55:54,171 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 03:55:54,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:55:54,226 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 03:55:54,227 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 478 treesize of output 454 [2022-11-03 03:55:54,239 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 222 treesize of output 186 [2022-11-03 03:55:57,714 INFO L356 Elim1Store]: treesize reduction 20, result has 35.5 percent of original size [2022-11-03 03:55:57,715 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 222 treesize of output 182 [2022-11-03 03:55:57,786 INFO L356 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-03 03:55:57,787 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 342 treesize of output 288 [2022-11-03 03:55:57,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:57,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:57,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:57,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:57,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:57,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:57,858 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:57,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:57,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:57,886 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:57,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:57,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:57,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:57,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:57,904 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:57,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:57,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:57,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:57,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:57,925 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:57,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:57,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:57,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:57,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:57,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:57,970 INFO L356 Elim1Store]: treesize reduction 23, result has 25.8 percent of original size [2022-11-03 03:55:57,971 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 353 treesize of output 330 [2022-11-03 03:55:58,014 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,018 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-03 03:55:58,018 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 84 treesize of output 1 [2022-11-03 03:55:58,033 INFO L356 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-03 03:55:58,033 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 204 treesize of output 1 [2022-11-03 03:55:58,048 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-03 03:55:58,049 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 174 treesize of output 157 [2022-11-03 03:55:58,090 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,094 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 1 [2022-11-03 03:55:58,116 INFO L356 Elim1Store]: treesize reduction 27, result has 12.9 percent of original size [2022-11-03 03:55:58,117 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 151 treesize of output 119 [2022-11-03 03:55:58,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,145 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-03 03:55:58,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,164 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 03:55:58,186 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,190 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-03 03:55:58,191 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 233 treesize of output 1 [2022-11-03 03:55:58,198 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,203 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-03 03:55:58,203 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 222 treesize of output 1 [2022-11-03 03:55:58,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,208 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,212 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,218 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,222 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 1 [2022-11-03 03:55:58,248 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,256 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-03 03:55:58,256 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 300 treesize of output 1 [2022-11-03 03:55:58,264 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,268 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-03 03:55:58,272 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 155 treesize of output 1 [2022-11-03 03:55:58,287 INFO L356 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-03 03:55:58,290 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 342 treesize of output 1 [2022-11-03 03:55:58,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,300 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 443 treesize of output 407 [2022-11-03 03:55:58,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,335 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,357 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,362 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,386 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,391 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-03 03:55:58,392 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 275 treesize of output 1 [2022-11-03 03:55:58,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,407 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,413 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-03 03:55:58,413 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 342 treesize of output 1 [2022-11-03 03:55:58,424 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,429 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-03 03:55:58,430 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 353 treesize of output 1 [2022-11-03 03:55:58,444 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,449 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-03 03:55:58,449 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 151 treesize of output 1 [2022-11-03 03:55:58,466 INFO L356 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-03 03:55:58,466 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 342 treesize of output 1 [2022-11-03 03:55:58,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,512 INFO L356 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-03 03:55:58,513 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 438 treesize of output 1 [2022-11-03 03:55:58,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,560 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,588 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,594 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,608 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 03:55:58,617 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,622 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 03:55:58,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,635 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,660 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,666 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-03 03:55:58,666 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 438 treesize of output 1 [2022-11-03 03:55:58,675 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,680 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-03 03:55:58,680 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 312 treesize of output 1 [2022-11-03 03:55:58,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,685 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,689 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,699 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,704 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-03 03:55:58,704 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 369 treesize of output 1 [2022-11-03 03:55:58,710 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,714 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,719 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 03:55:58,728 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,733 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-03 03:55:58,733 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 243 treesize of output 1 [2022-11-03 03:55:58,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,741 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,778 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,783 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 03:55:58,786 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,814 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,819 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 03:55:58,823 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,839 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,844 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-03 03:55:58,844 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 312 treesize of output 1 [2022-11-03 03:55:58,884 INFO L356 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-03 03:55:58,884 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 271 treesize of output 1 [2022-11-03 03:55:58,897 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,902 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-03 03:55:58,903 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 275 treesize of output 1 [2022-11-03 03:55:58,926 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,931 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-03 03:55:58,932 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 222 treesize of output 1 [2022-11-03 03:55:58,942 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,947 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-03 03:55:58,947 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 342 treesize of output 1 [2022-11-03 03:55:58,957 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:58,961 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-03 03:55:58,961 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 84 treesize of output 1 [2022-11-03 03:55:58,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,972 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-03 03:55:58,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:58,994 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 1 [2022-11-03 03:55:59,004 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:59,009 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-03 03:55:59,009 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 204 treesize of output 1 [2022-11-03 03:55:59,018 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:59,023 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-03 03:55:59,023 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 155 treesize of output 1 [2022-11-03 03:55:59,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,039 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:59,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,060 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:59,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,121 INFO L356 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-03 03:55:59,121 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 420 treesize of output 1 [2022-11-03 03:55:59,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,176 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-03 03:55:59,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,199 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-03 03:55:59,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,209 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-03 03:55:59,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,230 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:59,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,249 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:59,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,311 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-03 03:55:59,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,330 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-03 03:55:59,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,341 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-03 03:55:59,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,360 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-03 03:55:59,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,443 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:59,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,453 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:59,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,460 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-03 03:55:59,464 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:59,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,469 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:59,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,474 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:59,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,482 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-03 03:55:59,486 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:59,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,491 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:59,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,512 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:59,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,517 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:59,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,525 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-03 03:55:59,532 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:59,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,541 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:59,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,548 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-03 03:55:59,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,577 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:59,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,594 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:59,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,601 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-03 03:55:59,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,613 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:59,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,621 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-03 03:55:59,624 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:59,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,666 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:55:59,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,682 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-03 03:55:59,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:55:59,707 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-03 03:55:59,771 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 03:55:59,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696260294] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:55:59,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1589424772] [2022-11-03 03:55:59,774 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 03:55:59,774 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:55:59,774 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:55:59,775 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:55:59,775 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:55:59,910 INFO L356 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-03 03:55:59,910 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-11-03 03:56:00,028 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 03:56:00,028 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-03 03:56:00,079 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 26 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 98 [2022-11-03 03:56:00,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:00,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:00,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:00,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:00,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:00,222 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:56:00,281 INFO L356 Elim1Store]: treesize reduction 126, result has 21.7 percent of original size [2022-11-03 03:56:00,281 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 26 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 13 case distinctions, treesize of input 426 treesize of output 418 [2022-11-03 03:56:00,459 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-03 03:56:00,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:00,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:00,480 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:56:00,496 INFO L356 Elim1Store]: treesize reduction 37, result has 35.1 percent of original size [2022-11-03 03:56:00,497 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 39 [2022-11-03 03:56:00,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:00,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:00,541 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:56:00,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:00,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:00,544 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:56:00,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:00,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:00,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:00,552 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:56:00,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:00,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:00,555 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:56:00,672 INFO L356 Elim1Store]: treesize reduction 200, result has 34.0 percent of original size [2022-11-03 03:56:00,672 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 336 treesize of output 392 [2022-11-03 03:56:00,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:00,910 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:56:00,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:00,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:56:00,914 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:56:00,931 INFO L356 Elim1Store]: treesize reduction 44, result has 38.0 percent of original size [2022-11-03 03:56:00,931 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 53 [2022-11-03 03:56:00,951 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:56:01,354 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '356#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= ~MAX~0 100000) (= |ULTIMATE.start_main_#t~mem13#1| (select (select |#memory_int| |ULTIMATE.start_main_~acopy~0#1.base|) (+ (* |ULTIMATE.start_main_~i~0#1| 4) |ULTIMATE.start_main_~acopy~0#1.offset|))) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 4))) |ULTIMATE.start_main_#t~mem14#1|) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start_main_~acopy~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= |ULTIMATE.start_main_#t~mem14#1| |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (< |ULTIMATE.start_main_~i~0#1| ~SIZE~0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 03:56:01,354 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:56:01,355 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:56:01,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2022-11-03 03:56:01,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956448064] [2022-11-03 03:56:01,355 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 03:56:01,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 03:56:01,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:56:01,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 03:56:01,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2022-11-03 03:56:01,356 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:56:01,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:56:01,492 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-11-03 03:56:01,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 03:56:01,493 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 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 11 [2022-11-03 03:56:01,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:56:01,494 INFO L225 Difference]: With dead ends: 19 [2022-11-03 03:56:01,494 INFO L226 Difference]: Without dead ends: 17 [2022-11-03 03:56:01,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2022-11-03 03:56:01,495 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 11 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:56:01,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 14 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:56:01,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-03 03:56:01,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-03 03:56:01,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:56:01,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-11-03 03:56:01,500 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2022-11-03 03:56:01,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:56:01,500 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-11-03 03:56:01,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:56:01,501 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-11-03 03:56:01,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-03 03:56:01,501 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:56:01,501 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:56:01,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 03:56:01,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:56:01,711 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:56:01,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:56:01,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1318200786, now seen corresponding path program 1 times [2022-11-03 03:56:01,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:56:01,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596869366] [2022-11-03 03:56:01,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:56:01,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:56:01,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:56:02,435 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:56:02,436 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:56:02,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596869366] [2022-11-03 03:56:02,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596869366] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:56:02,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121771563] [2022-11-03 03:56:02,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:56:02,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:56:02,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:56:02,438 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:56:02,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65c6e276-7050-456b-9ef2-20d129fa4afc/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 03:56:02,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:56:02,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-03 03:56:02,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:56:02,523 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-03 03:56:02,578 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 03:56:02,670 INFO L356 Elim1Store]: treesize reduction 26, result has 31.6 percent of original size [2022-11-03 03:56:02,670 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 32 [2022-11-03 03:56:02,887 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:56:02,892 INFO L356 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2022-11-03 03:56:02,892 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 23 [2022-11-03 03:56:02,910 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:56:02,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:56:03,979 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_109 Int) (|ULTIMATE.start_main_~acopy~0#1.offset| Int)) (let ((.cse0 (store (let ((.cse1 (* (- 4) |c_ULTIMATE.start_main_~i~0#1|)) (.cse2 (* 4 c_~SIZE~0))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~acopy~0#1.base|) (+ .cse1 (- 4) .cse2 |ULTIMATE.start_main_~acopy~0#1.offset|) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse1 (- 4) .cse2 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |ULTIMATE.start_main_~acopy~0#1.offset|) v_ArrVal_109))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~acopy~0#1.base| .cse0) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (select .cse0 (+ |ULTIMATE.start_main_~acopy~0#1.offset| 4))))) is different from false [2022-11-03 03:56:05,990 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_109 Int) (|ULTIMATE.start_main_~acopy~0#1.offset| Int)) (let ((.cse0 (let ((.cse1 (* 4 c_~SIZE~0))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~acopy~0#1.base|) (+ (- 4) .cse1 |ULTIMATE.start_main_~acopy~0#1.offset|) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (- 4) .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|)))))) (= (select .cse0 (+ |ULTIMATE.start_main_~acopy~0#1.offset| 4)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~acopy~0#1.base| (store .cse0 |ULTIMATE.start_main_~acopy~0#1.offset| v_ArrVal_109)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))))) is different from false [2022-11-03 03:56:06,057 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 03:56:06,058 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 4450 treesize of output 3519 [2022-11-03 03:56:06,127 INFO L356 Elim1Store]: treesize reduction 39, result has 62.1 percent of original size [2022-11-03 03:56:06,128 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 5487 treesize of output 4913 [2022-11-03 03:56:06,188 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 03:56:06,188 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 5659 treesize of output 5215