./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fd310154a8f082280317f3bf1f868dbee13522304c8e13d29736e7fb8b36c7cf --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 12:09:44,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 12:09:44,584 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 12:09:44,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 12:09:44,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 12:09:44,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 12:09:44,622 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 12:09:44,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 12:09:44,626 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 12:09:44,627 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 12:09:44,628 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 12:09:44,629 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 12:09:44,630 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 12:09:44,634 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 12:09:44,635 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 12:09:44,636 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 12:09:44,639 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 12:09:44,640 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 12:09:44,640 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 12:09:44,642 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 12:09:44,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 12:09:44,646 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 12:09:44,647 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 12:09:44,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 12:09:44,649 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 12:09:44,650 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 12:09:44,650 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 12:09:44,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 12:09:44,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 12:09:44,652 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 12:09:44,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 12:09:44,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 12:09:44,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 12:09:44,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 12:09:44,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 12:09:44,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 12:09:44,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 12:09:44,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 12:09:44,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 12:09:44,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 12:09:44,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 12:09:44,658 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 12:09:44,673 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 12:09:44,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 12:09:44,677 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 12:09:44,677 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 12:09:44,678 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 12:09:44,678 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 12:09:44,678 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 12:09:44,678 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 12:09:44,679 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 12:09:44,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 12:09:44,679 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 12:09:44,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 12:09:44,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 12:09:44,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 12:09:44,680 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 12:09:44,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 12:09:44,680 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 12:09:44,680 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 12:09:44,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 12:09:44,681 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 12:09:44,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 12:09:44,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 12:09:44,681 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 12:09:44,681 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 12:09:44,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 12:09:44,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 12:09:44,682 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 12:09:44,682 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 12:09:44,682 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 12:09:44,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 12:09:44,682 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 12:09:44,682 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 12:09:44,683 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 12:09:44,683 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 12:09:44,683 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd310154a8f082280317f3bf1f868dbee13522304c8e13d29736e7fb8b36c7cf [2021-12-21 12:09:44,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 12:09:44,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 12:09:44,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 12:09:44,900 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 12:09:44,903 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 12:09:44,904 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i [2021-12-21 12:09:44,952 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97942ad06/7f2a6fb0b03e4d339e3d3a72d740fd39/FLAG34bb6a3fb [2021-12-21 12:09:45,376 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 12:09:45,377 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i [2021-12-21 12:09:45,387 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97942ad06/7f2a6fb0b03e4d339e3d3a72d740fd39/FLAG34bb6a3fb [2021-12-21 12:09:45,397 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97942ad06/7f2a6fb0b03e4d339e3d3a72d740fd39 [2021-12-21 12:09:45,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 12:09:45,400 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 12:09:45,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 12:09:45,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 12:09:45,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 12:09:45,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 12:09:45" (1/1) ... [2021-12-21 12:09:45,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e174ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:09:45, skipping insertion in model container [2021-12-21 12:09:45,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 12:09:45" (1/1) ... [2021-12-21 12:09:45,410 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 12:09:45,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 12:09:45,667 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25842,25855] [2021-12-21 12:09:45,671 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25967,25980] [2021-12-21 12:09:45,672 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[26082,26095] [2021-12-21 12:09:45,673 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 12:09:45,683 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 12:09:45,720 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25842,25855] [2021-12-21 12:09:45,721 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25967,25980] [2021-12-21 12:09:45,721 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[26082,26095] [2021-12-21 12:09:45,722 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 12:09:45,749 INFO L208 MainTranslator]: Completed translation [2021-12-21 12:09:45,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:09:45 WrapperNode [2021-12-21 12:09:45,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 12:09:45,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 12:09:45,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 12:09:45,751 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 12:09:45,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:09:45" (1/1) ... [2021-12-21 12:09:45,785 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:09:45" (1/1) ... [2021-12-21 12:09:45,814 INFO L137 Inliner]: procedures = 139, calls = 56, calls flagged for inlining = 15, calls inlined = 14, statements flattened = 128 [2021-12-21 12:09:45,815 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 12:09:45,816 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 12:09:45,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 12:09:45,817 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 12:09:45,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:09:45" (1/1) ... [2021-12-21 12:09:45,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:09:45" (1/1) ... [2021-12-21 12:09:45,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:09:45" (1/1) ... [2021-12-21 12:09:45,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:09:45" (1/1) ... [2021-12-21 12:09:45,852 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:09:45" (1/1) ... [2021-12-21 12:09:45,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:09:45" (1/1) ... [2021-12-21 12:09:45,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:09:45" (1/1) ... [2021-12-21 12:09:45,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 12:09:45,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 12:09:45,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 12:09:45,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 12:09:45,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:09:45" (1/1) ... [2021-12-21 12:09:45,886 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 12:09:45,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 12:09:45,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 12:09:45,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 12:09:45,933 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-12-21 12:09:45,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-12-21 12:09:45,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 12:09:45,935 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-21 12:09:45,935 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-21 12:09:45,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 12:09:45,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 12:09:45,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2021-12-21 12:09:45,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2021-12-21 12:09:45,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 12:09:45,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 12:09:45,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 12:09:45,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 12:09:45,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2021-12-21 12:09:45,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2021-12-21 12:09:45,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 12:09:45,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 12:09:46,054 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 12:09:46,055 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 12:09:46,227 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 12:09:46,232 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 12:09:46,232 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 12:09:46,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 12:09:46 BoogieIcfgContainer [2021-12-21 12:09:46,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 12:09:46,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 12:09:46,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 12:09:46,237 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 12:09:46,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 12:09:45" (1/3) ... [2021-12-21 12:09:46,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@253a0f39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 12:09:46, skipping insertion in model container [2021-12-21 12:09:46,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:09:45" (2/3) ... [2021-12-21 12:09:46,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@253a0f39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 12:09:46, skipping insertion in model container [2021-12-21 12:09:46,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 12:09:46" (3/3) ... [2021-12-21 12:09:46,240 INFO L111 eAbstractionObserver]: Analyzing ICFG test_mutex_unlock_at_exit.i [2021-12-21 12:09:46,243 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 12:09:46,244 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-21 12:09:46,273 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 12:09:46,278 INFO L339 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=PETRI_NET, 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 12:09:46,278 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-21 12:09:46,290 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 49 states have (on average 1.2857142857142858) internal successors, (63), 52 states have internal predecessors, (63), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-12-21 12:09:46,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-21 12:09:46,293 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:09:46,294 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 12:09:46,294 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:09:46,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:09:46,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1577806477, now seen corresponding path program 1 times [2021-12-21 12:09:46,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:09:46,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354326867] [2021-12-21 12:09:46,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:09:46,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:09:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:09:46,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 12:09:46,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:09:46,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 12:09:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:09:46,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-21 12:09:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:09:46,528 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-21 12:09:46,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:09:46,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354326867] [2021-12-21 12:09:46,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354326867] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:09:46,530 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:09:46,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 12:09:46,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007461572] [2021-12-21 12:09:46,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:09:46,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 12:09:46,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:09:46,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 12:09:46,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 12:09:46,566 INFO L87 Difference]: Start difference. First operand has 66 states, 49 states have (on average 1.2857142857142858) internal successors, (63), 52 states have internal predecessors, (63), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-21 12:09:46,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:09:46,645 INFO L93 Difference]: Finished difference Result 131 states and 169 transitions. [2021-12-21 12:09:46,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 12:09:46,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2021-12-21 12:09:46,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:09:46,659 INFO L225 Difference]: With dead ends: 131 [2021-12-21 12:09:46,659 INFO L226 Difference]: Without dead ends: 64 [2021-12-21 12:09:46,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 12:09:46,665 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 21 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 12:09:46,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 109 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 12:09:46,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-12-21 12:09:46,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 61. [2021-12-21 12:09:46,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 47 states have internal predecessors, (52), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-12-21 12:09:46,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 70 transitions. [2021-12-21 12:09:46,712 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 70 transitions. Word has length 28 [2021-12-21 12:09:46,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:09:46,713 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 70 transitions. [2021-12-21 12:09:46,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-21 12:09:46,713 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 70 transitions. [2021-12-21 12:09:46,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-21 12:09:46,715 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:09:46,715 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 12:09:46,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 12:09:46,715 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:09:46,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:09:46,716 INFO L85 PathProgramCache]: Analyzing trace with hash -109345869, now seen corresponding path program 1 times [2021-12-21 12:09:46,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:09:46,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351982683] [2021-12-21 12:09:46,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:09:46,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:09:46,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:09:46,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 12:09:46,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:09:46,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 12:09:46,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:09:46,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-21 12:09:46,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:09:46,927 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-21 12:09:46,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:09:46,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351982683] [2021-12-21 12:09:46,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351982683] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:09:46,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:09:46,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 12:09:46,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582067046] [2021-12-21 12:09:46,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:09:46,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 12:09:46,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:09:46,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 12:09:46,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 12:09:46,930 INFO L87 Difference]: Start difference. First operand 61 states and 70 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-21 12:09:47,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:09:47,042 INFO L93 Difference]: Finished difference Result 70 states and 82 transitions. [2021-12-21 12:09:47,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 12:09:47,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2021-12-21 12:09:47,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:09:47,045 INFO L225 Difference]: With dead ends: 70 [2021-12-21 12:09:47,046 INFO L226 Difference]: Without dead ends: 68 [2021-12-21 12:09:47,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-21 12:09:47,049 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 23 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 12:09:47,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 206 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 12:09:47,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-12-21 12:09:47,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 65. [2021-12-21 12:09:47,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 48 states have (on average 1.1458333333333333) internal successors, (55), 50 states have internal predecessors, (55), 9 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (12), 10 states have call predecessors, (12), 9 states have call successors, (12) [2021-12-21 12:09:47,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 76 transitions. [2021-12-21 12:09:47,061 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 76 transitions. Word has length 28 [2021-12-21 12:09:47,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:09:47,062 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 76 transitions. [2021-12-21 12:09:47,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-21 12:09:47,062 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 76 transitions. [2021-12-21 12:09:47,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-21 12:09:47,063 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:09:47,063 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 12:09:47,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 12:09:47,064 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:09:47,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:09:47,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1465257436, now seen corresponding path program 1 times [2021-12-21 12:09:47,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:09:47,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778987904] [2021-12-21 12:09:47,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:09:47,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:09:47,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:09:47,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 12:09:47,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:09:47,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 12:09:47,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:09:47,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-21 12:09:47,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:09:47,235 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-21 12:09:47,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:09:47,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778987904] [2021-12-21 12:09:47,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778987904] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:09:47,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:09:47,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 12:09:47,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450407157] [2021-12-21 12:09:47,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:09:47,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 12:09:47,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:09:47,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 12:09:47,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 12:09:47,240 INFO L87 Difference]: Start difference. First operand 65 states and 76 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-21 12:09:47,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:09:47,505 INFO L93 Difference]: Finished difference Result 186 states and 229 transitions. [2021-12-21 12:09:47,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-21 12:09:47,505 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2021-12-21 12:09:47,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:09:47,507 INFO L225 Difference]: With dead ends: 186 [2021-12-21 12:09:47,507 INFO L226 Difference]: Without dead ends: 129 [2021-12-21 12:09:47,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-12-21 12:09:47,508 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 120 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-21 12:09:47,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 258 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-21 12:09:47,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-12-21 12:09:47,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 99. [2021-12-21 12:09:47,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 72 states have (on average 1.1527777777777777) internal successors, (83), 77 states have internal predecessors, (83), 14 states have call successors, (14), 7 states have call predecessors, (14), 10 states have return successors, (21), 14 states have call predecessors, (21), 14 states have call successors, (21) [2021-12-21 12:09:47,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 118 transitions. [2021-12-21 12:09:47,519 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 118 transitions. Word has length 28 [2021-12-21 12:09:47,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:09:47,519 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 118 transitions. [2021-12-21 12:09:47,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-21 12:09:47,520 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 118 transitions. [2021-12-21 12:09:47,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-21 12:09:47,521 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:09:47,521 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 12:09:47,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 12:09:47,521 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:09:47,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:09:47,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1566335676, now seen corresponding path program 1 times [2021-12-21 12:09:47,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:09:47,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857876281] [2021-12-21 12:09:47,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:09:47,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:09:47,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:09:47,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 12:09:47,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:09:47,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 12:09:47,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:09:47,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-21 12:09:47,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:09:48,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 12:09:48,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:09:48,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 12:09:48,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:09:48,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 12:09:48,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:09:48,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 12:09:48,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:09:48,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-21 12:09:48,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:09:48,390 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 21 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-21 12:09:48,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:09:48,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857876281] [2021-12-21 12:09:48,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857876281] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 12:09:48,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001095250] [2021-12-21 12:09:48,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:09:48,391 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 12:09:48,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 12:09:48,393 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 12:09:48,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-21 12:09:48,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:09:48,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 218 conjunts are in the unsatisfiable core [2021-12-21 12:09:48,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 12:09:48,935 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-21 12:09:48,936 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-21 12:09:49,283 INFO L353 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-12-21 12:09:49,284 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2021-12-21 12:09:49,443 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 7 treesize of output 3 [2021-12-21 12:09:49,459 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 7 treesize of output 3 [2021-12-21 12:09:53,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:09:53,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:09:53,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:09:53,465 INFO L353 Elim1Store]: treesize reduction 168, result has 22.9 percent of original size [2021-12-21 12:09:53,465 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 228 treesize of output 166 [2021-12-21 12:09:53,479 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-21 12:09:53,480 INFO L387 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 339 treesize of output 262 [2021-12-21 12:09:53,525 INFO L353 Elim1Store]: treesize reduction 30, result has 47.4 percent of original size [2021-12-21 12:09:53,526 INFO L387 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 230 treesize of output 176 [2021-12-21 12:09:53,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:09:53,563 INFO L353 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-12-21 12:09:53,563 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 98 [2021-12-21 12:09:53,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:09:53,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:09:53,580 INFO L387 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 0 case distinctions, treesize of input 76 treesize of output 58 [2021-12-21 12:09:53,595 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 36 [2021-12-21 12:09:53,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:09:53,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:09:53,609 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 34 [2021-12-21 12:09:53,618 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 37 treesize of output 40 [2021-12-21 12:09:53,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:09:53,627 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 92 [2021-12-21 12:09:53,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:09:53,648 INFO L353 Elim1Store]: treesize reduction 8, result has 74.2 percent of original size [2021-12-21 12:09:53,648 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 35 [2021-12-21 12:09:53,678 INFO L353 Elim1Store]: treesize reduction 34, result has 47.7 percent of original size [2021-12-21 12:09:53,679 INFO L387 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 3 case distinctions, treesize of input 29 treesize of output 52 [2021-12-21 12:09:53,687 INFO L387 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 17 treesize of output 13 [2021-12-21 12:09:53,696 INFO L387 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 46 treesize of output 36 [2021-12-21 12:09:53,708 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-21 12:09:53,709 INFO L387 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 29 [2021-12-21 12:09:53,721 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 63 [2021-12-21 12:09:53,726 INFO L387 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 11 treesize of output 9 [2021-12-21 12:09:57,837 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 16 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-21 12:09:57,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 12:10:00,130 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_mutex_lock_ldv_list_add_~new#1.base_8| Int) (v_ArrVal_313 Int) (v___ldv_list_add_~prev.offset_8 Int) (v_ArrVal_309 (Array Int Int)) (v_ArrVal_310 (Array Int Int)) (v___ldv_list_add_~next.offset_8 Int) (v_ArrVal_314 Int)) (let ((.cse7 (store |c_#memory_$Pointer$.base| |v_mutex_lock_ldv_list_add_~new#1.base_8| (store (select |c_#memory_$Pointer$.base| |v_mutex_lock_ldv_list_add_~new#1.base_8|) 0 |c_ULTIMATE.start_foo_~m1~0#1.base|)))) (let ((.cse1 (select (select .cse7 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|)) (.cse6 (+ 4 v___ldv_list_add_~next.offset_8))) (let ((.cse0 (store .cse7 .cse1 (store (select .cse7 .cse1) .cse6 |v_mutex_lock_ldv_list_add_~new#1.base_8|)))) (let ((.cse2 (store (select (store .cse0 |v_mutex_lock_ldv_list_add_~new#1.base_8| v_ArrVal_309) |c_~#mutexes~0.base|) v___ldv_list_add_~prev.offset_8 |v_mutex_lock_ldv_list_add_~new#1.base_8|))) (let ((.cse4 (select (store (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| |v_mutex_lock_ldv_list_add_~new#1.base_8| (store (select |c_#memory_$Pointer$.offset| |v_mutex_lock_ldv_list_add_~new#1.base_8|) 0 |c_ULTIMATE.start_foo_~m1~0#1.offset|)))) (store (store .cse5 .cse1 (store (select .cse5 .cse1) .cse6 4)) |v_mutex_lock_ldv_list_add_~new#1.base_8| (store (store (select (store .cse5 .cse1 v_ArrVal_310) |v_mutex_lock_ldv_list_add_~new#1.base_8|) 4 v_ArrVal_314) 8 v_ArrVal_313))) |c_~#mutexes~0.base|) v___ldv_list_add_~prev.offset_8 4) |c_~#mutexes~0.offset|)) (.cse3 (select .cse2 |c_~#mutexes~0.offset|))) (or (not (= (select |c_#valid| |v_mutex_lock_ldv_list_add_~new#1.base_8|) 0)) (not (= (select (select (store (store .cse0 |v_mutex_lock_ldv_list_add_~new#1.base_8| (store (store (select .cse0 |v_mutex_lock_ldv_list_add_~new#1.base_8|) 4 .cse1) 8 |c_~#mutexes~0.base|)) |c_~#mutexes~0.base| .cse2) .cse3) (+ .cse4 (- 4))) |c_ULTIMATE.start_foo_~m2~0#1.base|)) (and (= .cse4 |c_~#mutexes~0.offset|) (= .cse3 |c_~#mutexes~0.base|))))))))) is different from false [2021-12-21 12:10:00,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001095250] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 12:10:00,134 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-21 12:10:00,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 61 [2021-12-21 12:10:00,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631617184] [2021-12-21 12:10:00,135 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-21 12:10:00,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2021-12-21 12:10:00,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:10:00,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2021-12-21 12:10:00,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=4257, Unknown=38, NotChecked=132, Total=4692 [2021-12-21 12:10:00,156 INFO L87 Difference]: Start difference. First operand 99 states and 118 transitions. Second operand has 61 states, 50 states have (on average 1.74) internal successors, (87), 43 states have internal predecessors, (87), 16 states have call successors, (18), 12 states have call predecessors, (18), 15 states have return successors, (16), 15 states have call predecessors, (16), 14 states have call successors, (16) [2021-12-21 12:10:05,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:10:05,583 INFO L93 Difference]: Finished difference Result 212 states and 245 transitions. [2021-12-21 12:10:05,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-12-21 12:10:05,585 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 50 states have (on average 1.74) internal successors, (87), 43 states have internal predecessors, (87), 16 states have call successors, (18), 12 states have call predecessors, (18), 15 states have return successors, (16), 15 states have call predecessors, (16), 14 states have call successors, (16) Word has length 63 [2021-12-21 12:10:05,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:10:05,591 INFO L225 Difference]: With dead ends: 212 [2021-12-21 12:10:05,591 INFO L226 Difference]: Without dead ends: 155 [2021-12-21 12:10:05,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1786 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=606, Invalid=8268, Unknown=60, NotChecked=186, Total=9120 [2021-12-21 12:10:05,595 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 260 mSDsluCounter, 1866 mSDsCounter, 0 mSdLazyCounter, 1971 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 1935 SdHoareTripleChecker+Invalid, 2749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 1971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 633 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-21 12:10:05,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 1935 Invalid, 2749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 1971 Invalid, 0 Unknown, 633 Unchecked, 1.2s Time] [2021-12-21 12:10:05,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-12-21 12:10:05,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 117. [2021-12-21 12:10:05,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 86 states have (on average 1.1627906976744187) internal successors, (100), 91 states have internal predecessors, (100), 15 states have call successors, (15), 9 states have call predecessors, (15), 13 states have return successors, (24), 16 states have call predecessors, (24), 15 states have call successors, (24) [2021-12-21 12:10:05,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 139 transitions. [2021-12-21 12:10:05,622 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 139 transitions. Word has length 63 [2021-12-21 12:10:05,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:10:05,623 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 139 transitions. [2021-12-21 12:10:05,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 50 states have (on average 1.74) internal successors, (87), 43 states have internal predecessors, (87), 16 states have call successors, (18), 12 states have call predecessors, (18), 15 states have return successors, (16), 15 states have call predecessors, (16), 14 states have call successors, (16) [2021-12-21 12:10:05,624 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 139 transitions. [2021-12-21 12:10:05,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-21 12:10:05,630 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:10:05,630 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 12:10:05,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-21 12:10:05,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 12:10:05,850 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:10:05,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:10:05,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1979205398, now seen corresponding path program 1 times [2021-12-21 12:10:05,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:10:05,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371326043] [2021-12-21 12:10:05,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:10:05,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:10:05,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:05,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 12:10:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:05,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 12:10:05,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:05,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-21 12:10:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:05,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 12:10:05,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:05,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 12:10:05,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:05,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-21 12:10:05,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:05,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 12:10:05,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:05,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 12:10:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:05,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-21 12:10:05,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:05,945 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-12-21 12:10:05,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:10:05,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371326043] [2021-12-21 12:10:05,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371326043] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 12:10:05,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571212350] [2021-12-21 12:10:05,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:10:05,945 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 12:10:05,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 12:10:05,947 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 12:10:05,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-21 12:10:06,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:06,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-21 12:10:06,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 12:10:06,165 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-21 12:10:06,166 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 12:10:06,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571212350] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:10:06,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 12:10:06,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2021-12-21 12:10:06,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232378644] [2021-12-21 12:10:06,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:10:06,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 12:10:06,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:10:06,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 12:10:06,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-21 12:10:06,168 INFO L87 Difference]: Start difference. First operand 117 states and 139 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-21 12:10:06,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:10:06,181 INFO L93 Difference]: Finished difference Result 202 states and 240 transitions. [2021-12-21 12:10:06,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 12:10:06,182 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 71 [2021-12-21 12:10:06,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:10:06,183 INFO L225 Difference]: With dead ends: 202 [2021-12-21 12:10:06,183 INFO L226 Difference]: Without dead ends: 125 [2021-12-21 12:10:06,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 87 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-21 12:10:06,184 INFO L933 BasicCegarLoop]: 68 mSDtfsCounter, 0 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 12:10:06,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 200 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 12:10:06,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-12-21 12:10:06,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2021-12-21 12:10:06,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 92 states have (on average 1.1521739130434783) internal successors, (106), 97 states have internal predecessors, (106), 15 states have call successors, (15), 9 states have call predecessors, (15), 15 states have return successors, (27), 18 states have call predecessors, (27), 15 states have call successors, (27) [2021-12-21 12:10:06,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 148 transitions. [2021-12-21 12:10:06,194 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 148 transitions. Word has length 71 [2021-12-21 12:10:06,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:10:06,195 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 148 transitions. [2021-12-21 12:10:06,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-21 12:10:06,195 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 148 transitions. [2021-12-21 12:10:06,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-21 12:10:06,196 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:10:06,196 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 12:10:06,226 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-21 12:10:06,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 12:10:06,428 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:10:06,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:10:06,428 INFO L85 PathProgramCache]: Analyzing trace with hash 2093878652, now seen corresponding path program 1 times [2021-12-21 12:10:06,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:10:06,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746490419] [2021-12-21 12:10:06,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:10:06,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:10:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:06,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 12:10:06,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:06,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 12:10:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:06,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-21 12:10:06,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:06,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 12:10:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:06,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 12:10:06,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:06,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-21 12:10:06,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:06,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 12:10:06,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:06,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 12:10:06,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:06,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-21 12:10:06,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:06,672 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 24 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-21 12:10:06,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:10:06,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746490419] [2021-12-21 12:10:06,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746490419] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 12:10:06,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196667513] [2021-12-21 12:10:06,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:10:06,673 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 12:10:06,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 12:10:06,675 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 12:10:06,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-21 12:10:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:06,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 39 conjunts are in the unsatisfiable core [2021-12-21 12:10:06,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 12:10:06,954 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 7 treesize of output 3 [2021-12-21 12:10:06,958 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 7 treesize of output 3 [2021-12-21 12:10:07,258 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-21 12:10:07,259 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 12:10:07,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196667513] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:10:07,259 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 12:10:07,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 20 [2021-12-21 12:10:07,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198501749] [2021-12-21 12:10:07,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:10:07,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-21 12:10:07,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:10:07,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-21 12:10:07,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2021-12-21 12:10:07,260 INFO L87 Difference]: Start difference. First operand 125 states and 148 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2021-12-21 12:10:07,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:10:07,681 INFO L93 Difference]: Finished difference Result 269 states and 316 transitions. [2021-12-21 12:10:07,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-21 12:10:07,682 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 71 [2021-12-21 12:10:07,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:10:07,683 INFO L225 Difference]: With dead ends: 269 [2021-12-21 12:10:07,683 INFO L226 Difference]: Without dead ends: 140 [2021-12-21 12:10:07,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=178, Invalid=752, Unknown=0, NotChecked=0, Total=930 [2021-12-21 12:10:07,684 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 155 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-21 12:10:07,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 216 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-21 12:10:07,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-12-21 12:10:07,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 123. [2021-12-21 12:10:07,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 92 states have (on average 1.1304347826086956) internal successors, (104), 96 states have internal predecessors, (104), 14 states have call successors, (14), 10 states have call predecessors, (14), 14 states have return successors, (23), 16 states have call predecessors, (23), 14 states have call successors, (23) [2021-12-21 12:10:07,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 141 transitions. [2021-12-21 12:10:07,693 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 141 transitions. Word has length 71 [2021-12-21 12:10:07,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:10:07,695 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 141 transitions. [2021-12-21 12:10:07,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2021-12-21 12:10:07,695 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 141 transitions. [2021-12-21 12:10:07,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-21 12:10:07,696 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:10:07,696 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 12:10:07,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-21 12:10:07,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 12:10:07,897 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:10:07,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:10:07,897 INFO L85 PathProgramCache]: Analyzing trace with hash -818250910, now seen corresponding path program 1 times [2021-12-21 12:10:07,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:10:07,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863352671] [2021-12-21 12:10:07,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:10:07,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:10:07,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:08,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 12:10:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:08,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 12:10:08,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:08,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-21 12:10:08,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:08,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 12:10:08,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:08,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 12:10:08,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:08,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 12:10:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:08,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 12:10:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:08,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-21 12:10:08,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:08,777 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 7 proven. 23 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-21 12:10:08,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:10:08,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863352671] [2021-12-21 12:10:08,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863352671] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 12:10:08,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932389414] [2021-12-21 12:10:08,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:10:08,777 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 12:10:08,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 12:10:08,792 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 12:10:08,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-21 12:10:08,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:08,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 192 conjunts are in the unsatisfiable core [2021-12-21 12:10:08,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 12:10:09,353 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-21 12:10:09,354 INFO L387 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 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-21 12:10:09,549 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-21 12:10:09,550 INFO L387 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 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-21 12:10:09,578 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 7 treesize of output 3 [2021-12-21 12:10:09,584 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 7 treesize of output 3 [2021-12-21 12:10:10,306 INFO L353 Elim1Store]: treesize reduction 59, result has 35.2 percent of original size [2021-12-21 12:10:10,307 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 55 [2021-12-21 12:10:10,322 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-21 12:10:10,322 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 58 treesize of output 76 [2021-12-21 12:10:10,327 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 26 treesize of output 29 [2021-12-21 12:10:10,331 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 27 treesize of output 24 [2021-12-21 12:10:10,352 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-12-21 12:10:10,398 INFO L387 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 5 treesize of output 3 [2021-12-21 12:10:10,408 INFO L387 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 5 treesize of output 3 [2021-12-21 12:10:10,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:10,438 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 17 [2021-12-21 12:10:10,479 INFO L353 Elim1Store]: treesize reduction 79, result has 26.9 percent of original size [2021-12-21 12:10:10,479 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 94 [2021-12-21 12:10:10,494 INFO L353 Elim1Store]: treesize reduction 4, result has 60.0 percent of original size [2021-12-21 12:10:10,494 INFO L387 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2021-12-21 12:10:10,506 INFO L353 Elim1Store]: treesize reduction 4, result has 60.0 percent of original size [2021-12-21 12:10:10,506 INFO L387 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2021-12-21 12:10:10,537 INFO L387 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 5 treesize of output 3 [2021-12-21 12:10:10,544 INFO L387 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 5 treesize of output 3 [2021-12-21 12:10:10,560 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-21 12:10:10,564 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-21 12:10:10,613 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-12-21 12:10:10,614 INFO L387 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 7 [2021-12-21 12:10:10,621 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-21 12:10:10,653 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-12-21 12:10:10,654 INFO L387 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 7 [2021-12-21 12:10:10,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:10,664 INFO L387 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2021-12-21 12:10:10,691 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-12-21 12:10:10,692 INFO L387 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 7 [2021-12-21 12:10:10,713 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-12-21 12:10:10,714 INFO L387 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 7 [2021-12-21 12:10:10,759 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-12-21 12:10:10,760 INFO L387 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2021-12-21 12:10:10,798 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-12-21 12:10:10,799 INFO L387 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2021-12-21 12:10:10,838 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-12-21 12:10:10,839 INFO L387 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 7 [2021-12-21 12:10:10,865 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-12-21 12:10:10,865 INFO L387 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 7 [2021-12-21 12:10:12,987 INFO L387 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 51 treesize of output 49 [2021-12-21 12:10:12,992 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 49 treesize of output 52 [2021-12-21 12:10:13,821 INFO L387 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 51 treesize of output 49 [2021-12-21 12:10:13,824 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 49 treesize of output 52 [2021-12-21 12:10:14,707 INFO L387 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 51 treesize of output 49 [2021-12-21 12:10:14,710 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 49 treesize of output 52 [2021-12-21 12:10:15,375 INFO L387 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 51 treesize of output 49 [2021-12-21 12:10:15,377 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 49 treesize of output 52 [2021-12-21 12:10:15,903 INFO L387 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 51 treesize of output 49 [2021-12-21 12:10:15,905 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 49 treesize of output 52 [2021-12-21 12:10:16,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:16,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:16,065 INFO L353 Elim1Store]: treesize reduction 201, result has 13.4 percent of original size [2021-12-21 12:10:16,065 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 338 treesize of output 266 [2021-12-21 12:10:16,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:16,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:16,075 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2021-12-21 12:10:16,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:16,080 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 69 treesize of output 53 [2021-12-21 12:10:16,087 INFO L353 Elim1Store]: treesize reduction 30, result has 14.3 percent of original size [2021-12-21 12:10:16,087 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 119 treesize of output 102 [2021-12-21 12:10:16,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:16,090 INFO L387 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 72 [2021-12-21 12:10:16,108 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-12-21 12:10:16,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:16,123 INFO L387 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-21 12:10:16,470 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-21 12:10:16,470 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 12:10:18,019 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-21 12:10:18,019 INFO L387 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 304 treesize of output 252 [2021-12-21 12:10:18,032 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-21 12:10:18,033 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 267 treesize of output 297 [2021-12-21 12:10:18,040 INFO L387 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 239 treesize of output 237 [2021-12-21 12:10:18,075 INFO L387 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 15 treesize of output 4 [2021-12-21 12:10:18,085 INFO L387 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 234 treesize of output 223 [2021-12-21 12:10:18,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932389414] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 12:10:18,652 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-21 12:10:18,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 25] total 49 [2021-12-21 12:10:18,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988969511] [2021-12-21 12:10:18,652 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-21 12:10:18,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-12-21 12:10:18,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:10:18,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-12-21 12:10:18,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=2619, Unknown=14, NotChecked=0, Total=2862 [2021-12-21 12:10:18,654 INFO L87 Difference]: Start difference. First operand 123 states and 141 transitions. Second operand has 49 states, 46 states have (on average 1.9565217391304348) internal successors, (90), 39 states have internal predecessors, (90), 11 states have call successors, (18), 11 states have call predecessors, (18), 15 states have return successors, (16), 15 states have call predecessors, (16), 11 states have call successors, (16) [2021-12-21 12:10:25,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:10:25,421 INFO L93 Difference]: Finished difference Result 270 states and 311 transitions. [2021-12-21 12:10:25,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-12-21 12:10:25,421 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 46 states have (on average 1.9565217391304348) internal successors, (90), 39 states have internal predecessors, (90), 11 states have call successors, (18), 11 states have call predecessors, (18), 15 states have return successors, (16), 15 states have call predecessors, (16), 11 states have call successors, (16) Word has length 66 [2021-12-21 12:10:25,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:10:25,422 INFO L225 Difference]: With dead ends: 270 [2021-12-21 12:10:25,422 INFO L226 Difference]: Without dead ends: 163 [2021-12-21 12:10:25,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1631 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=738, Invalid=6217, Unknown=17, NotChecked=0, Total=6972 [2021-12-21 12:10:25,425 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 586 mSDsluCounter, 923 mSDsCounter, 0 mSdLazyCounter, 1414 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 1970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 1414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 339 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-21 12:10:25,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [588 Valid, 986 Invalid, 1970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 1414 Invalid, 0 Unknown, 339 Unchecked, 1.0s Time] [2021-12-21 12:10:25,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-12-21 12:10:25,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 118. [2021-12-21 12:10:25,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 89 states have (on average 1.0898876404494382) internal successors, (97), 91 states have internal predecessors, (97), 14 states have call successors, (14), 11 states have call predecessors, (14), 13 states have return successors, (17), 15 states have call predecessors, (17), 14 states have call successors, (17) [2021-12-21 12:10:25,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 128 transitions. [2021-12-21 12:10:25,433 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 128 transitions. Word has length 66 [2021-12-21 12:10:25,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:10:25,434 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 128 transitions. [2021-12-21 12:10:25,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 46 states have (on average 1.9565217391304348) internal successors, (90), 39 states have internal predecessors, (90), 11 states have call successors, (18), 11 states have call predecessors, (18), 15 states have return successors, (16), 15 states have call predecessors, (16), 11 states have call successors, (16) [2021-12-21 12:10:25,434 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 128 transitions. [2021-12-21 12:10:25,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-21 12:10:25,435 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:10:25,436 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 12:10:25,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-21 12:10:25,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 12:10:25,655 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:10:25,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:10:25,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1523149351, now seen corresponding path program 1 times [2021-12-21 12:10:25,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:10:25,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496804462] [2021-12-21 12:10:25,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:10:25,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:10:25,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:25,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 12:10:25,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:25,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 12:10:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:25,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-21 12:10:25,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:25,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 12:10:25,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:25,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 12:10:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:25,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 12:10:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:25,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 12:10:25,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:25,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-21 12:10:25,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:25,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 12:10:25,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:25,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 12:10:25,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:25,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-21 12:10:25,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:25,783 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-21 12:10:25,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:10:25,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496804462] [2021-12-21 12:10:25,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496804462] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:10:25,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:10:25,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 12:10:25,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076063735] [2021-12-21 12:10:25,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:10:25,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 12:10:25,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:10:25,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 12:10:25,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-21 12:10:25,785 INFO L87 Difference]: Start difference. First operand 118 states and 128 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-21 12:10:25,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:10:25,892 INFO L93 Difference]: Finished difference Result 124 states and 134 transitions. [2021-12-21 12:10:25,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 12:10:25,892 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) Word has length 87 [2021-12-21 12:10:25,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:10:25,893 INFO L225 Difference]: With dead ends: 124 [2021-12-21 12:10:25,893 INFO L226 Difference]: Without dead ends: 122 [2021-12-21 12:10:25,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-21 12:10:25,894 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 38 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 12:10:25,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 207 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 12:10:25,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-12-21 12:10:25,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-12-21 12:10:25,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 92 states have (on average 1.0869565217391304) internal successors, (100), 94 states have internal predecessors, (100), 14 states have call successors, (14), 11 states have call predecessors, (14), 14 states have return successors, (18), 16 states have call predecessors, (18), 14 states have call successors, (18) [2021-12-21 12:10:25,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 132 transitions. [2021-12-21 12:10:25,902 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 132 transitions. Word has length 87 [2021-12-21 12:10:25,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:10:25,903 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 132 transitions. [2021-12-21 12:10:25,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-21 12:10:25,903 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 132 transitions. [2021-12-21 12:10:25,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-21 12:10:25,904 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:10:25,904 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 12:10:25,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-21 12:10:25,904 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:10:25,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:10:25,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1360136124, now seen corresponding path program 2 times [2021-12-21 12:10:25,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:10:25,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41993923] [2021-12-21 12:10:25,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:10:25,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:10:25,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:25,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 12:10:25,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:25,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 12:10:25,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:25,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-21 12:10:25,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:26,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 12:10:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:26,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 12:10:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:26,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 12:10:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:26,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 12:10:26,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:26,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-21 12:10:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:26,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 12:10:26,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:26,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 12:10:26,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:26,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-21 12:10:26,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:26,420 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 32 proven. 20 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-21 12:10:26,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:10:26,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41993923] [2021-12-21 12:10:26,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41993923] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 12:10:26,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977542876] [2021-12-21 12:10:26,420 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-21 12:10:26,421 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 12:10:26,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 12:10:26,434 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 12:10:26,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-21 12:10:26,628 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-21 12:10:26,628 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-21 12:10:26,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 266 conjunts are in the unsatisfiable core [2021-12-21 12:10:26,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 12:10:26,821 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-21 12:10:26,822 INFO L387 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-12-21 12:10:26,919 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-12-21 12:10:27,105 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 7 treesize of output 3 [2021-12-21 12:10:27,736 INFO L353 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2021-12-21 12:10:27,736 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 194 treesize of output 182 [2021-12-21 12:10:27,742 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-12-21 12:10:27,749 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-12-21 12:10:27,756 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-12-21 12:10:27,804 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-21 12:10:27,807 INFO L387 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 5 treesize of output 3 [2021-12-21 12:10:27,824 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 7 treesize of output 3 [2021-12-21 12:10:27,859 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-21 12:10:27,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:27,886 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-21 12:10:27,889 INFO L387 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 5 treesize of output 3 [2021-12-21 12:10:27,962 INFO L353 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-12-21 12:10:27,963 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 60 treesize of output 70 [2021-12-21 12:10:28,001 INFO L387 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 5 treesize of output 3 [2021-12-21 12:10:28,028 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-21 12:10:28,073 INFO L353 Elim1Store]: treesize reduction 9, result has 47.1 percent of original size [2021-12-21 12:10:28,073 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 24 [2021-12-21 12:10:28,082 INFO L387 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 5 treesize of output 3 [2021-12-21 12:10:28,362 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-21 12:10:28,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:28,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:28,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:28,370 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-21 12:10:28,550 INFO L353 Elim1Store]: treesize reduction 404, result has 33.4 percent of original size [2021-12-21 12:10:28,551 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 340 treesize of output 313 [2021-12-21 12:10:28,562 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-21 12:10:28,563 INFO L387 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 493 treesize of output 438 [2021-12-21 12:10:28,582 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-21 12:10:28,583 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 154 treesize of output 166 [2021-12-21 12:10:28,617 INFO L353 Elim1Store]: treesize reduction 62, result has 43.1 percent of original size [2021-12-21 12:10:28,617 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 243 treesize of output 281 [2021-12-21 12:10:28,637 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 99 treesize of output 93 [2021-12-21 12:10:28,671 INFO L353 Elim1Store]: treesize reduction 45, result has 51.1 percent of original size [2021-12-21 12:10:28,672 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 229 treesize of output 257 [2021-12-21 12:10:28,688 INFO L353 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-12-21 12:10:28,688 INFO L387 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-12-21 12:10:28,717 INFO L387 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 5 treesize of output 3 [2021-12-21 12:10:28,740 INFO L387 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 11 treesize of output 7 [2021-12-21 12:10:28,768 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 15 [2021-12-21 12:10:28,829 INFO L387 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 11 treesize of output 3 [2021-12-21 12:10:28,850 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-21 12:10:28,868 INFO L353 Elim1Store]: treesize reduction 36, result has 40.0 percent of original size [2021-12-21 12:10:28,868 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 415 treesize of output 301 [2021-12-21 12:10:29,691 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-21 12:10:29,692 INFO L387 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 60 [2021-12-21 12:10:29,764 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 40 treesize of output 30 [2021-12-21 12:10:29,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:29,799 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2021-12-21 12:10:30,996 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-21 12:10:30,997 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 29 [2021-12-21 12:10:31,021 INFO L353 Elim1Store]: treesize reduction 13, result has 48.0 percent of original size [2021-12-21 12:10:31,021 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 104 treesize of output 102 [2021-12-21 12:10:31,417 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-21 12:10:31,417 INFO L387 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 36 [2021-12-21 12:10:31,968 INFO L353 Elim1Store]: treesize reduction 9, result has 47.1 percent of original size [2021-12-21 12:10:31,969 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 94 [2021-12-21 12:10:31,973 INFO L387 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 88 treesize of output 72 [2021-12-21 12:10:31,994 INFO L387 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 17 treesize of output 13 [2021-12-21 12:10:32,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:32,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:32,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:32,263 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-21 12:10:32,264 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 104 [2021-12-21 12:10:32,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:32,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:32,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:32,395 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-21 12:10:32,395 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 205 treesize of output 225 [2021-12-21 12:10:32,652 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 76 treesize of output 60 [2021-12-21 12:10:32,672 INFO L353 Elim1Store]: treesize reduction 23, result has 53.1 percent of original size [2021-12-21 12:10:32,672 INFO L387 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 5 new quantified variables, introduced 4 case distinctions, treesize of input 60 treesize of output 52 [2021-12-21 12:10:33,766 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 36 proven. 30 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-21 12:10:33,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 12:10:35,394 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 688 treesize of output 680 [2021-12-21 12:10:35,400 INFO L387 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 722 treesize of output 714 [2021-12-21 12:10:35,407 INFO L387 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 798 treesize of output 782 [2021-12-21 12:10:35,415 INFO L387 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 824 treesize of output 816 [2021-12-21 12:10:35,422 INFO L387 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 816 treesize of output 812 [2021-12-21 12:10:36,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977542876] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 12:10:36,003 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-21 12:10:36,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 38] total 60 [2021-12-21 12:10:36,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584867636] [2021-12-21 12:10:36,003 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-21 12:10:36,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2021-12-21 12:10:36,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:10:36,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-12-21 12:10:36,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=353, Invalid=4901, Unknown=2, NotChecked=0, Total=5256 [2021-12-21 12:10:36,005 INFO L87 Difference]: Start difference. First operand 122 states and 132 transitions. Second operand has 60 states, 51 states have (on average 2.176470588235294) internal successors, (111), 43 states have internal predecessors, (111), 17 states have call successors, (21), 12 states have call predecessors, (21), 16 states have return successors, (22), 18 states have call predecessors, (22), 17 states have call successors, (22) [2021-12-21 12:10:37,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:10:37,923 INFO L93 Difference]: Finished difference Result 181 states and 195 transitions. [2021-12-21 12:10:37,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-12-21 12:10:37,923 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 51 states have (on average 2.176470588235294) internal successors, (111), 43 states have internal predecessors, (111), 17 states have call successors, (21), 12 states have call predecessors, (21), 16 states have return successors, (22), 18 states have call predecessors, (22), 17 states have call successors, (22) Word has length 90 [2021-12-21 12:10:37,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:10:37,924 INFO L225 Difference]: With dead ends: 181 [2021-12-21 12:10:37,924 INFO L226 Difference]: Without dead ends: 116 [2021-12-21 12:10:37,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2963 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=855, Invalid=9855, Unknown=2, NotChecked=0, Total=10712 [2021-12-21 12:10:37,927 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 248 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 1631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 85 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-21 12:10:37,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [248 Valid, 878 Invalid, 1631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 1391 Invalid, 0 Unknown, 85 Unchecked, 0.7s Time] [2021-12-21 12:10:37,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-12-21 12:10:37,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 108. [2021-12-21 12:10:37,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 82 states have (on average 1.0609756097560976) internal successors, (87), 83 states have internal predecessors, (87), 13 states have call successors, (13), 10 states have call predecessors, (13), 11 states have return successors, (14), 14 states have call predecessors, (14), 13 states have call successors, (14) [2021-12-21 12:10:37,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 114 transitions. [2021-12-21 12:10:37,937 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 114 transitions. Word has length 90 [2021-12-21 12:10:37,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:10:37,937 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 114 transitions. [2021-12-21 12:10:37,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 51 states have (on average 2.176470588235294) internal successors, (111), 43 states have internal predecessors, (111), 17 states have call successors, (21), 12 states have call predecessors, (21), 16 states have return successors, (22), 18 states have call predecessors, (22), 17 states have call successors, (22) [2021-12-21 12:10:37,938 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 114 transitions. [2021-12-21 12:10:37,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-21 12:10:37,938 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:10:37,939 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 12:10:37,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-21 12:10:38,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 12:10:38,155 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:10:38,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:10:38,156 INFO L85 PathProgramCache]: Analyzing trace with hash -299426104, now seen corresponding path program 1 times [2021-12-21 12:10:38,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:10:38,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048274251] [2021-12-21 12:10:38,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:10:38,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:10:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:38,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 12:10:38,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:38,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 12:10:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:38,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-21 12:10:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:38,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 12:10:38,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:38,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 12:10:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:38,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 12:10:38,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:38,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 12:10:38,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:38,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-21 12:10:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:38,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 12:10:38,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:38,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 12:10:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:38,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-21 12:10:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:38,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-21 12:10:38,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:38,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-21 12:10:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:38,454 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-21 12:10:38,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:10:38,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048274251] [2021-12-21 12:10:38,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048274251] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:10:38,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:10:38,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-12-21 12:10:38,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585307454] [2021-12-21 12:10:38,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:10:38,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-21 12:10:38,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:10:38,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-21 12:10:38,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2021-12-21 12:10:38,457 INFO L87 Difference]: Start difference. First operand 108 states and 114 transitions. Second operand has 16 states, 15 states have (on average 3.4) internal successors, (51), 12 states have internal predecessors, (51), 5 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (12), 7 states have call predecessors, (12), 5 states have call successors, (12) [2021-12-21 12:10:39,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:10:39,054 INFO L93 Difference]: Finished difference Result 143 states and 153 transitions. [2021-12-21 12:10:39,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-21 12:10:39,055 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.4) internal successors, (51), 12 states have internal predecessors, (51), 5 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (12), 7 states have call predecessors, (12), 5 states have call successors, (12) Word has length 103 [2021-12-21 12:10:39,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:10:39,055 INFO L225 Difference]: With dead ends: 143 [2021-12-21 12:10:39,055 INFO L226 Difference]: Without dead ends: 123 [2021-12-21 12:10:39,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=189, Invalid=933, Unknown=0, NotChecked=0, Total=1122 [2021-12-21 12:10:39,056 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 176 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-21 12:10:39,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 432 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-21 12:10:39,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-12-21 12:10:39,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 109. [2021-12-21 12:10:39,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 83 states have (on average 1.0602409638554218) internal successors, (88), 84 states have internal predecessors, (88), 13 states have call successors, (13), 10 states have call predecessors, (13), 11 states have return successors, (14), 14 states have call predecessors, (14), 13 states have call successors, (14) [2021-12-21 12:10:39,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 115 transitions. [2021-12-21 12:10:39,069 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 115 transitions. Word has length 103 [2021-12-21 12:10:39,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:10:39,069 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 115 transitions. [2021-12-21 12:10:39,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.4) internal successors, (51), 12 states have internal predecessors, (51), 5 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (12), 7 states have call predecessors, (12), 5 states have call successors, (12) [2021-12-21 12:10:39,069 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 115 transitions. [2021-12-21 12:10:39,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-21 12:10:39,070 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:10:39,070 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 12:10:39,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-21 12:10:39,070 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:10:39,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:10:39,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1365564594, now seen corresponding path program 2 times [2021-12-21 12:10:39,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:10:39,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936854516] [2021-12-21 12:10:39,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:10:39,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:10:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:39,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 12:10:39,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:39,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 12:10:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:39,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-21 12:10:39,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:39,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 12:10:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:39,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 12:10:39,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:39,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 12:10:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:39,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 12:10:39,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:39,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-21 12:10:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:39,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 12:10:39,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:39,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 12:10:39,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:39,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-21 12:10:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:39,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-21 12:10:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:39,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-21 12:10:39,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:10:39,906 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 44 proven. 22 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-12-21 12:10:39,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:10:39,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936854516] [2021-12-21 12:10:39,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936854516] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 12:10:39,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538645694] [2021-12-21 12:10:39,906 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-21 12:10:39,906 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 12:10:39,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 12:10:39,915 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 12:10:39,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-21 12:10:40,227 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-21 12:10:40,227 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-21 12:10:40,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 214 conjunts are in the unsatisfiable core [2021-12-21 12:10:40,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 12:10:40,367 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-12-21 12:10:40,806 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 12 treesize of output 9 [2021-12-21 12:10:40,830 INFO L353 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-12-21 12:10:40,830 INFO L387 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 2 case distinctions, treesize of input 12 treesize of output 27 [2021-12-21 12:10:40,849 INFO L353 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-12-21 12:10:40,850 INFO L387 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 2 case distinctions, treesize of input 12 treesize of output 27 [2021-12-21 12:10:40,926 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-21 12:10:40,926 INFO L387 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 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-21 12:10:41,807 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 8 treesize of output 4 [2021-12-21 12:10:41,811 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-21 12:10:41,919 INFO L353 Elim1Store]: treesize reduction 162, result has 40.7 percent of original size [2021-12-21 12:10:41,919 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 354 treesize of output 239 [2021-12-21 12:10:41,937 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-21 12:10:41,937 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 77 treesize of output 91 [2021-12-21 12:10:41,946 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2021-12-21 12:10:41,954 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 11 [2021-12-21 12:10:42,041 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-21 12:10:42,042 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 40 treesize of output 34 [2021-12-21 12:10:42,049 INFO L387 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 9 treesize of output 7 [2021-12-21 12:10:42,095 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-21 12:10:42,095 INFO L387 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 19 treesize of output 23 [2021-12-21 12:10:42,102 INFO L387 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 9 treesize of output 7 [2021-12-21 12:10:42,150 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2021-12-21 12:10:42,534 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 12 treesize of output 10 [2021-12-21 12:10:42,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:42,543 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-12-21 12:10:42,572 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2021-12-21 12:10:42,826 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-21 12:10:42,827 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 179 treesize of output 153 [2021-12-21 12:10:42,830 INFO L387 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 133 treesize of output 115 [2021-12-21 12:10:43,210 INFO L353 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2021-12-21 12:10:43,210 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 191 treesize of output 171 [2021-12-21 12:10:43,233 INFO L387 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 143 treesize of output 123 [2021-12-21 12:10:43,542 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-21 12:10:43,543 INFO L387 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 183 treesize of output 157 [2021-12-21 12:10:43,550 INFO L387 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 142 treesize of output 122 [2021-12-21 12:10:44,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:44,696 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 21 treesize of output 25 [2021-12-21 12:10:44,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:44,739 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 17 [2021-12-21 12:10:44,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:44,941 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 17 [2021-12-21 12:10:45,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:45,127 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 21 treesize of output 25 [2021-12-21 12:10:47,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:47,333 INFO L353 Elim1Store]: treesize reduction 61, result has 35.8 percent of original size [2021-12-21 12:10:47,333 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 65 [2021-12-21 12:10:47,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:47,427 INFO L353 Elim1Store]: treesize reduction 42, result has 27.6 percent of original size [2021-12-21 12:10:47,428 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 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 40 treesize of output 54 [2021-12-21 12:10:47,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:47,450 INFO L387 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28 [2021-12-21 12:10:47,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:47,515 INFO L353 Elim1Store]: treesize reduction 116, result has 0.9 percent of original size [2021-12-21 12:10:47,516 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 1 [2021-12-21 12:10:47,547 INFO L353 Elim1Store]: treesize reduction 101, result has 1.0 percent of original size [2021-12-21 12:10:47,547 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 160 treesize of output 1 [2021-12-21 12:10:47,565 INFO L353 Elim1Store]: treesize reduction 111, result has 0.9 percent of original size [2021-12-21 12:10:47,565 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 1 [2021-12-21 12:10:47,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:47,654 INFO L353 Elim1Store]: treesize reduction 122, result has 0.8 percent of original size [2021-12-21 12:10:47,655 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 1 [2021-12-21 12:10:47,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:47,754 INFO L353 Elim1Store]: treesize reduction 94, result has 1.1 percent of original size [2021-12-21 12:10:47,755 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 1 [2021-12-21 12:10:47,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:47,791 INFO L353 Elim1Store]: treesize reduction 87, result has 1.1 percent of original size [2021-12-21 12:10:47,792 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 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 47 treesize of output 1 [2021-12-21 12:10:47,807 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 13 treesize of output 16 [2021-12-21 12:10:47,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:47,874 INFO L353 Elim1Store]: treesize reduction 88, result has 1.1 percent of original size [2021-12-21 12:10:47,874 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 1 [2021-12-21 12:10:47,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:47,935 INFO L353 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-12-21 12:10:47,935 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 1 [2021-12-21 12:10:47,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:47,961 INFO L353 Elim1Store]: treesize reduction 57, result has 1.7 percent of original size [2021-12-21 12:10:47,961 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 31 treesize of output 1 [2021-12-21 12:10:48,322 INFO L387 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 118 treesize of output 114 [2021-12-21 12:10:49,412 INFO L387 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 118 treesize of output 114 [2021-12-21 12:10:50,201 INFO L387 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 118 treesize of output 114 [2021-12-21 12:10:50,762 INFO L387 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 118 treesize of output 114 [2021-12-21 12:10:51,315 INFO L387 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 118 treesize of output 114 [2021-12-21 12:10:51,852 INFO L387 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 118 treesize of output 114 [2021-12-21 12:10:52,016 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-21 12:10:52,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:52,217 INFO L353 Elim1Store]: treesize reduction 1422, result has 16.2 percent of original size [2021-12-21 12:10:52,217 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 989 treesize of output 478 [2021-12-21 12:10:52,223 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 701 treesize of output 645 [2021-12-21 12:10:52,230 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-21 12:10:52,230 INFO L387 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-12-21 12:10:52,263 INFO L387 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 632 treesize of output 614 [2021-12-21 12:10:52,272 INFO L387 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 276 treesize of output 268 [2021-12-21 12:10:56,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:56,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:56,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:56,616 INFO L353 Elim1Store]: treesize reduction 76, result has 3.8 percent of original size [2021-12-21 12:10:56,616 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 166 treesize of output 84 [2021-12-21 12:10:56,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:56,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:56,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-21 12:10:56,680 INFO L353 Elim1Store]: treesize reduction 76, result has 3.8 percent of original size [2021-12-21 12:10:56,680 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 166 treesize of output 84