/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-01 16:12:52,393 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 16:12:52,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 16:12:52,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-01 16:12:52,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-01 16:12:52,436 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-01 16:12:52,438 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-01 16:12:52,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-01 16:12:52,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-01 16:12:52,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-01 16:12:52,446 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-01 16:12:52,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-01 16:12:52,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-01 16:12:52,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-01 16:12:52,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-01 16:12:52,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-01 16:12:52,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-01 16:12:52,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-01 16:12:52,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-01 16:12:52,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-01 16:12:52,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-01 16:12:52,464 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-01 16:12:52,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-01 16:12:52,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-01 16:12:52,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-01 16:12:52,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-01 16:12:52,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-01 16:12:52,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-01 16:12:52,485 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-01 16:12:52,520 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 16:12:52,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 16:12:52,521 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 16:12:52,521 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 16:12:52,522 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 16:12:52,522 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 16:12:52,522 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 16:12:52,522 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 16:12:52,523 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 16:12:52,523 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 16:12:52,527 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 16:12:52,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 16:12:52,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 16:12:52,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 16:12:52,527 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 16:12:52,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 16:12:52,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 16:12:52,528 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 16:12:52,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 16:12:52,528 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 16:12:52,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 16:12:52,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 16:12:52,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 16:12:52,529 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 16:12:52,529 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 16:12:52,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 16:12:52,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 16:12:52,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 16:12:52,529 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 16:12:52,529 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 16:12:52,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 16:12:52,530 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 16:12:52,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 16:12:52,530 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 16:12:52,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 16:12:52,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 16:12:52,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 16:12:52,737 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-01 16:12:52,737 INFO L275 PluginConnector]: CDTParser initialized [2022-03-01 16:12:52,738 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c [2022-03-01 16:12:52,788 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d2b9adf7/ad2a9274e85f43eaa24200d2b0a40fff/FLAG7fb4ce559 [2022-03-01 16:12:53,145 INFO L306 CDTParser]: Found 1 translation units. [2022-03-01 16:12:53,146 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c [2022-03-01 16:12:53,150 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d2b9adf7/ad2a9274e85f43eaa24200d2b0a40fff/FLAG7fb4ce559 [2022-03-01 16:12:53,560 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d2b9adf7/ad2a9274e85f43eaa24200d2b0a40fff [2022-03-01 16:12:53,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 16:12:53,562 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-01 16:12:53,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-01 16:12:53,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-01 16:12:53,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-01 16:12:53,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 04:12:53" (1/1) ... [2022-03-01 16:12:53,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10a37f10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:12:53, skipping insertion in model container [2022-03-01 16:12:53,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 04:12:53" (1/1) ... [2022-03-01 16:12:53,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-01 16:12:53,603 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-01 16:12:53,792 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c[2690,2703] [2022-03-01 16:12:53,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 16:12:53,812 INFO L203 MainTranslator]: Completed pre-run [2022-03-01 16:12:53,850 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c[2690,2703] [2022-03-01 16:12:53,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 16:12:53,866 INFO L208 MainTranslator]: Completed translation [2022-03-01 16:12:53,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:12:53 WrapperNode [2022-03-01 16:12:53,867 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-01 16:12:53,868 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 16:12:53,869 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 16:12:53,869 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 16:12:53,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:12:53" (1/1) ... [2022-03-01 16:12:53,892 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:12:53" (1/1) ... [2022-03-01 16:12:53,910 INFO L137 Inliner]: procedures = 26, calls = 43, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 121 [2022-03-01 16:12:53,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 16:12:53,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 16:12:53,911 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 16:12:53,911 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 16:12:53,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:12:53" (1/1) ... [2022-03-01 16:12:53,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:12:53" (1/1) ... [2022-03-01 16:12:53,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:12:53" (1/1) ... [2022-03-01 16:12:53,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:12:53" (1/1) ... [2022-03-01 16:12:53,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:12:53" (1/1) ... [2022-03-01 16:12:53,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:12:53" (1/1) ... [2022-03-01 16:12:53,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:12:53" (1/1) ... [2022-03-01 16:12:53,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 16:12:53,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 16:12:53,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 16:12:53,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 16:12:53,946 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:12:53" (1/1) ... [2022-03-01 16:12:53,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 16:12:53,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:12:53,972 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) [2022-03-01 16:12:53,975 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 [2022-03-01 16:12:54,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-01 16:12:54,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-01 16:12:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-01 16:12:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-01 16:12:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-01 16:12:54,002 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-01 16:12:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-01 16:12:54,003 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-01 16:12:54,004 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-01 16:12:54,004 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-01 16:12:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-01 16:12:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-01 16:12:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-01 16:12:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-01 16:12:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 16:12:54,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 16:12:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-01 16:12:54,006 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-01 16:12:54,078 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 16:12:54,079 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 16:12:54,354 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 16:12:54,380 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 16:12:54,381 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-03-01 16:12:54,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 04:12:54 BoogieIcfgContainer [2022-03-01 16:12:54,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 16:12:54,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 16:12:54,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 16:12:54,388 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 16:12:54,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.03 04:12:53" (1/3) ... [2022-03-01 16:12:54,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e60f237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 04:12:54, skipping insertion in model container [2022-03-01 16:12:54,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:12:53" (2/3) ... [2022-03-01 16:12:54,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e60f237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 04:12:54, skipping insertion in model container [2022-03-01 16:12:54,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 04:12:54" (3/3) ... [2022-03-01 16:12:54,390 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-simple-array-sum.wvr.c [2022-03-01 16:12:54,395 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 16:12:54,395 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 16:12:54,395 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-01 16:12:54,395 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 16:12:54,440 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,440 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,441 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,441 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,441 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,442 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,442 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,442 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,442 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,442 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,442 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,442 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,443 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,443 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,443 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,443 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,444 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,444 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,444 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,444 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,444 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,444 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,444 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,444 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,445 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,445 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,445 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,445 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,445 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,446 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,446 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,446 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,446 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,446 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,447 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,448 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,448 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,448 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,448 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,448 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,449 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,449 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,449 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,449 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,449 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,449 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,449 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,450 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,450 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,450 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,450 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,450 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,451 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,451 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,451 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,451 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,451 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,451 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,452 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,452 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,452 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,452 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,452 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,452 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,453 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,453 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,453 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,453 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,453 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,454 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,454 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,454 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,454 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,454 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,455 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,455 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,455 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,461 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,461 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,462 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,462 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,467 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,470 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,475 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,475 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,475 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,476 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,476 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,476 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,476 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,476 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,477 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,477 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,477 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,477 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,477 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,477 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:12:54,481 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-01 16:12:54,530 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 16:12:54,540 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=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-01 16:12:54,540 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-01 16:12:54,551 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 180 places, 186 transitions, 396 flow [2022-03-01 16:12:54,921 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6035 states, 6034 states have (on average 3.88929400066291) internal successors, (23468), 6034 states have internal predecessors, (23468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:12:54,946 INFO L276 IsEmpty]: Start isEmpty. Operand has 6035 states, 6034 states have (on average 3.88929400066291) internal successors, (23468), 6034 states have internal predecessors, (23468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:12:55,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-01 16:12:55,002 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:12:55,003 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:12:55,004 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:12:55,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:12:55,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1889282923, now seen corresponding path program 1 times [2022-03-01 16:12:55,017 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:12:55,017 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533130481] [2022-03-01 16:12:55,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:12:55,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:12:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:12:55,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:12:55,262 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:12:55,262 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533130481] [2022-03-01 16:12:55,262 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533130481] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:12:55,262 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:12:55,263 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-01 16:12:55,264 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658684270] [2022-03-01 16:12:55,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:12:55,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-01 16:12:55,268 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:12:55,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-01 16:12:55,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-01 16:12:55,316 INFO L87 Difference]: Start difference. First operand has 6035 states, 6034 states have (on average 3.88929400066291) internal successors, (23468), 6034 states have internal predecessors, (23468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:12:55,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:12:55,442 INFO L93 Difference]: Finished difference Result 6035 states and 21899 transitions. [2022-03-01 16:12:55,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 16:12:55,445 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2022-03-01 16:12:55,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:12:55,519 INFO L225 Difference]: With dead ends: 6035 [2022-03-01 16:12:55,520 INFO L226 Difference]: Without dead ends: 6030 [2022-03-01 16:12:55,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-01 16:12:55,527 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 16:12:55,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 154 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 16:12:55,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6030 states. [2022-03-01 16:12:55,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6030 to 6030. [2022-03-01 16:12:55,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6030 states, 6029 states have (on average 3.6314480013269197) internal successors, (21894), 6029 states have internal predecessors, (21894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:12:55,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6030 states to 6030 states and 21894 transitions. [2022-03-01 16:12:55,918 INFO L78 Accepts]: Start accepts. Automaton has 6030 states and 21894 transitions. Word has length 124 [2022-03-01 16:12:55,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:12:55,919 INFO L470 AbstractCegarLoop]: Abstraction has 6030 states and 21894 transitions. [2022-03-01 16:12:55,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:12:55,919 INFO L276 IsEmpty]: Start isEmpty. Operand 6030 states and 21894 transitions. [2022-03-01 16:12:55,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-01 16:12:55,943 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:12:55,943 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:12:55,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-01 16:12:55,944 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:12:55,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:12:55,946 INFO L85 PathProgramCache]: Analyzing trace with hash -79140489, now seen corresponding path program 1 times [2022-03-01 16:12:55,947 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:12:55,947 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979711124] [2022-03-01 16:12:55,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:12:55,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:12:56,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:12:57,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:12:57,201 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:12:57,201 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979711124] [2022-03-01 16:12:57,201 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979711124] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:12:57,201 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:12:57,201 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-01 16:12:57,202 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122109098] [2022-03-01 16:12:57,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:12:57,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-01 16:12:57,204 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:12:57,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-01 16:12:57,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-03-01 16:12:57,208 INFO L87 Difference]: Start difference. First operand 6030 states and 21894 transitions. Second operand has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:12:58,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:12:58,212 INFO L93 Difference]: Finished difference Result 17647 states and 64359 transitions. [2022-03-01 16:12:58,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:12:58,213 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2022-03-01 16:12:58,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:12:58,337 INFO L225 Difference]: With dead ends: 17647 [2022-03-01 16:12:58,337 INFO L226 Difference]: Without dead ends: 16717 [2022-03-01 16:12:58,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=189, Invalid=317, Unknown=0, NotChecked=0, Total=506 [2022-03-01 16:12:58,339 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 1442 mSDsluCounter, 910 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:12:58,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1442 Valid, 973 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:12:58,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16717 states. [2022-03-01 16:12:58,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16717 to 7575. [2022-03-01 16:12:58,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7575 states, 7574 states have (on average 3.6198838130446265) internal successors, (27417), 7574 states have internal predecessors, (27417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:12:58,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7575 states to 7575 states and 27417 transitions. [2022-03-01 16:12:58,822 INFO L78 Accepts]: Start accepts. Automaton has 7575 states and 27417 transitions. Word has length 124 [2022-03-01 16:12:58,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:12:58,828 INFO L470 AbstractCegarLoop]: Abstraction has 7575 states and 27417 transitions. [2022-03-01 16:12:58,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:12:58,830 INFO L276 IsEmpty]: Start isEmpty. Operand 7575 states and 27417 transitions. [2022-03-01 16:12:58,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-01 16:12:58,856 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:12:58,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:12:58,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-01 16:12:58,856 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:12:58,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:12:58,857 INFO L85 PathProgramCache]: Analyzing trace with hash -2040901353, now seen corresponding path program 1 times [2022-03-01 16:12:58,857 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:12:58,857 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680538329] [2022-03-01 16:12:58,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:12:58,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:12:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:12:58,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:12:58,992 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:12:58,992 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680538329] [2022-03-01 16:12:58,993 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680538329] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:12:58,993 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:12:58,994 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 16:12:58,996 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765881272] [2022-03-01 16:12:58,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:12:58,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 16:12:58,999 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:12:58,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 16:12:58,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-01 16:12:59,000 INFO L87 Difference]: Start difference. First operand 7575 states and 27417 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:12:59,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:12:59,358 INFO L93 Difference]: Finished difference Result 13777 states and 48829 transitions. [2022-03-01 16:12:59,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-01 16:12:59,358 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2022-03-01 16:12:59,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:12:59,420 INFO L225 Difference]: With dead ends: 13777 [2022-03-01 16:12:59,421 INFO L226 Difference]: Without dead ends: 13297 [2022-03-01 16:12:59,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2022-03-01 16:12:59,422 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 771 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:12:59,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [771 Valid, 536 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:12:59,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13297 states. [2022-03-01 16:12:59,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13297 to 8135. [2022-03-01 16:12:59,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8135 states, 8134 states have (on average 3.610892549791001) internal successors, (29371), 8134 states have internal predecessors, (29371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:12:59,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8135 states to 8135 states and 29371 transitions. [2022-03-01 16:12:59,781 INFO L78 Accepts]: Start accepts. Automaton has 8135 states and 29371 transitions. Word has length 131 [2022-03-01 16:12:59,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:12:59,782 INFO L470 AbstractCegarLoop]: Abstraction has 8135 states and 29371 transitions. [2022-03-01 16:12:59,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:12:59,782 INFO L276 IsEmpty]: Start isEmpty. Operand 8135 states and 29371 transitions. [2022-03-01 16:12:59,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-01 16:12:59,813 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:12:59,813 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:12:59,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-01 16:12:59,814 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:12:59,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:12:59,815 INFO L85 PathProgramCache]: Analyzing trace with hash 991679570, now seen corresponding path program 1 times [2022-03-01 16:12:59,815 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:12:59,815 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170956071] [2022-03-01 16:12:59,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:12:59,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:12:59,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:12:59,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:12:59,948 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:12:59,948 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170956071] [2022-03-01 16:12:59,948 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170956071] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:12:59,948 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:12:59,948 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 16:12:59,948 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933637425] [2022-03-01 16:12:59,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:12:59,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 16:12:59,949 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:12:59,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 16:12:59,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-01 16:12:59,950 INFO L87 Difference]: Start difference. First operand 8135 states and 29371 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:00,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:13:00,197 INFO L93 Difference]: Finished difference Result 7687 states and 26509 transitions. [2022-03-01 16:13:00,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-01 16:13:00,198 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2022-03-01 16:13:00,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:13:00,226 INFO L225 Difference]: With dead ends: 7687 [2022-03-01 16:13:00,226 INFO L226 Difference]: Without dead ends: 6040 [2022-03-01 16:13:00,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2022-03-01 16:13:00,234 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 692 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:13:00,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [692 Valid, 530 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:13:00,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6040 states. [2022-03-01 16:13:00,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6040 to 6032. [2022-03-01 16:13:00,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6032 states, 6031 states have (on average 3.63057536063671) internal successors, (21896), 6031 states have internal predecessors, (21896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:00,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6032 states to 6032 states and 21896 transitions. [2022-03-01 16:13:00,503 INFO L78 Accepts]: Start accepts. Automaton has 6032 states and 21896 transitions. Word has length 131 [2022-03-01 16:13:00,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:13:00,503 INFO L470 AbstractCegarLoop]: Abstraction has 6032 states and 21896 transitions. [2022-03-01 16:13:00,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:00,504 INFO L276 IsEmpty]: Start isEmpty. Operand 6032 states and 21896 transitions. [2022-03-01 16:13:00,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-03-01 16:13:00,525 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:13:00,525 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:13:00,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-01 16:13:00,525 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:13:00,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:13:00,526 INFO L85 PathProgramCache]: Analyzing trace with hash 728658965, now seen corresponding path program 1 times [2022-03-01 16:13:00,526 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:13:00,526 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34651047] [2022-03-01 16:13:00,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:13:00,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:13:00,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:13:00,605 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:13:00,605 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:13:00,605 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34651047] [2022-03-01 16:13:00,605 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34651047] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:13:00,605 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093348727] [2022-03-01 16:13:00,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:13:00,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:13:00,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:13:00,611 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) [2022-03-01 16:13:00,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-01 16:13:00,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:13:00,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 6 conjunts are in the unsatisfiable core [2022-03-01 16:13:00,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:13:01,039 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:13:01,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:13:01,322 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-01 16:13:01,323 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093348727] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-01 16:13:01,323 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-01 16:13:01,323 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-03-01 16:13:01,323 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462056555] [2022-03-01 16:13:01,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:13:01,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 16:13:01,324 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:13:01,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 16:13:01,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-03-01 16:13:01,325 INFO L87 Difference]: Start difference. First operand 6032 states and 21896 transitions. Second operand has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:01,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:13:01,458 INFO L93 Difference]: Finished difference Result 6615 states and 24055 transitions. [2022-03-01 16:13:01,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 16:13:01,459 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2022-03-01 16:13:01,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:13:01,564 INFO L225 Difference]: With dead ends: 6615 [2022-03-01 16:13:01,564 INFO L226 Difference]: Without dead ends: 6615 [2022-03-01 16:13:01,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 264 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-03-01 16:13:01,565 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 454 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:13:01,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [454 Valid, 377 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:13:01,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6615 states. [2022-03-01 16:13:01,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6615 to 6615. [2022-03-01 16:13:01,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6615 states, 6614 states have (on average 3.6369821590565468) internal successors, (24055), 6614 states have internal predecessors, (24055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:01,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6615 states to 6615 states and 24055 transitions. [2022-03-01 16:13:01,748 INFO L78 Accepts]: Start accepts. Automaton has 6615 states and 24055 transitions. Word has length 136 [2022-03-01 16:13:01,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:13:01,749 INFO L470 AbstractCegarLoop]: Abstraction has 6615 states and 24055 transitions. [2022-03-01 16:13:01,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:01,749 INFO L276 IsEmpty]: Start isEmpty. Operand 6615 states and 24055 transitions. [2022-03-01 16:13:01,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-03-01 16:13:01,769 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:13:01,769 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:13:01,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-01 16:13:01,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:13:01,984 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:13:01,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:13:01,984 INFO L85 PathProgramCache]: Analyzing trace with hash 877480859, now seen corresponding path program 1 times [2022-03-01 16:13:01,984 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:13:01,985 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025976519] [2022-03-01 16:13:01,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:13:01,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:13:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:13:02,070 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:13:02,070 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:13:02,071 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025976519] [2022-03-01 16:13:02,071 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025976519] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:13:02,071 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1331447569] [2022-03-01 16:13:02,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:13:02,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:13:02,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:13:02,076 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) [2022-03-01 16:13:02,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-01 16:13:02,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:13:02,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 6 conjunts are in the unsatisfiable core [2022-03-01 16:13:02,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:13:02,489 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:13:02,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:13:02,847 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 16:13:02,848 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1331447569] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-01 16:13:02,848 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-01 16:13:02,848 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-03-01 16:13:02,848 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357234831] [2022-03-01 16:13:02,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:13:02,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 16:13:02,849 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:13:02,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 16:13:02,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-03-01 16:13:02,849 INFO L87 Difference]: Start difference. First operand 6615 states and 24055 transitions. Second operand has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:02,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:13:02,985 INFO L93 Difference]: Finished difference Result 7135 states and 25975 transitions. [2022-03-01 16:13:02,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 16:13:02,986 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2022-03-01 16:13:02,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:13:03,016 INFO L225 Difference]: With dead ends: 7135 [2022-03-01 16:13:03,016 INFO L226 Difference]: Without dead ends: 7135 [2022-03-01 16:13:03,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 276 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-03-01 16:13:03,017 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 393 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 16:13:03,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [393 Valid, 370 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 16:13:03,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7135 states. [2022-03-01 16:13:03,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7135 to 7135. [2022-03-01 16:13:03,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7135 states, 7134 states have (on average 3.6410148584244464) internal successors, (25975), 7134 states have internal predecessors, (25975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:03,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7135 states to 7135 states and 25975 transitions. [2022-03-01 16:13:03,299 INFO L78 Accepts]: Start accepts. Automaton has 7135 states and 25975 transitions. Word has length 142 [2022-03-01 16:13:03,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:13:03,300 INFO L470 AbstractCegarLoop]: Abstraction has 7135 states and 25975 transitions. [2022-03-01 16:13:03,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:03,300 INFO L276 IsEmpty]: Start isEmpty. Operand 7135 states and 25975 transitions. [2022-03-01 16:13:03,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-01 16:13:03,321 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:13:03,321 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:13:03,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-01 16:13:03,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-03-01 16:13:03,536 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:13:03,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:13:03,536 INFO L85 PathProgramCache]: Analyzing trace with hash -86048338, now seen corresponding path program 1 times [2022-03-01 16:13:03,537 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:13:03,537 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826113816] [2022-03-01 16:13:03,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:13:03,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:13:03,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:13:03,640 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-01 16:13:03,641 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:13:03,641 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826113816] [2022-03-01 16:13:03,641 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826113816] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:13:03,641 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666776392] [2022-03-01 16:13:03,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:13:03,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:13:03,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:13:03,643 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) [2022-03-01 16:13:03,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-01 16:13:03,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:13:03,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 6 conjunts are in the unsatisfiable core [2022-03-01 16:13:03,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:13:04,070 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-01 16:13:04,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:13:04,473 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-01 16:13:04,473 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666776392] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-01 16:13:04,473 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-01 16:13:04,473 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2022-03-01 16:13:04,473 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231406396] [2022-03-01 16:13:04,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:13:04,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 16:13:04,474 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:13:04,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 16:13:04,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-03-01 16:13:04,474 INFO L87 Difference]: Start difference. First operand 7135 states and 25975 transitions. Second operand has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:04,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:13:04,605 INFO L93 Difference]: Finished difference Result 7735 states and 28209 transitions. [2022-03-01 16:13:04,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 16:13:04,606 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 149 [2022-03-01 16:13:04,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:13:04,629 INFO L225 Difference]: With dead ends: 7735 [2022-03-01 16:13:04,630 INFO L226 Difference]: Without dead ends: 7735 [2022-03-01 16:13:04,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 290 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-03-01 16:13:04,631 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 427 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 16:13:04,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [427 Valid, 376 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 16:13:04,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7735 states. [2022-03-01 16:13:04,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7735 to 7735. [2022-03-01 16:13:04,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7735 states, 7734 states have (on average 3.647401086113266) internal successors, (28209), 7734 states have internal predecessors, (28209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:04,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7735 states to 7735 states and 28209 transitions. [2022-03-01 16:13:04,962 INFO L78 Accepts]: Start accepts. Automaton has 7735 states and 28209 transitions. Word has length 149 [2022-03-01 16:13:04,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:13:04,962 INFO L470 AbstractCegarLoop]: Abstraction has 7735 states and 28209 transitions. [2022-03-01 16:13:04,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:04,963 INFO L276 IsEmpty]: Start isEmpty. Operand 7735 states and 28209 transitions. [2022-03-01 16:13:04,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-03-01 16:13:04,989 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:13:04,989 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:13:05,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-01 16:13:05,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:13:05,203 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:13:05,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:13:05,204 INFO L85 PathProgramCache]: Analyzing trace with hash -167158528, now seen corresponding path program 1 times [2022-03-01 16:13:05,204 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:13:05,204 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796763211] [2022-03-01 16:13:05,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:13:05,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:13:05,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:13:05,336 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-01 16:13:05,336 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:13:05,336 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796763211] [2022-03-01 16:13:05,337 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796763211] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:13:05,337 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493658371] [2022-03-01 16:13:05,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:13:05,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:13:05,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:13:05,338 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) [2022-03-01 16:13:05,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-01 16:13:05,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:13:05,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 6 conjunts are in the unsatisfiable core [2022-03-01 16:13:05,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:13:05,775 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-01 16:13:05,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:13:06,066 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-01 16:13:06,066 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493658371] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:13:06,066 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:13:06,066 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-03-01 16:13:06,067 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975038313] [2022-03-01 16:13:06,067 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:13:06,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-01 16:13:06,067 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:13:06,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-01 16:13:06,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-03-01 16:13:06,068 INFO L87 Difference]: Start difference. First operand 7735 states and 28209 transitions. Second operand has 12 states, 12 states have (on average 14.833333333333334) internal successors, (178), 12 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:06,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:13:06,333 INFO L93 Difference]: Finished difference Result 13609 states and 49260 transitions. [2022-03-01 16:13:06,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 16:13:06,333 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 14.833333333333334) internal successors, (178), 12 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2022-03-01 16:13:06,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:13:06,386 INFO L225 Difference]: With dead ends: 13609 [2022-03-01 16:13:06,386 INFO L226 Difference]: Without dead ends: 12457 [2022-03-01 16:13:06,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:13:06,387 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 516 mSDsluCounter, 1080 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 16:13:06,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [516 Valid, 1269 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 16:13:06,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12457 states. [2022-03-01 16:13:06,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12457 to 9589. [2022-03-01 16:13:06,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9589 states, 9588 states have (on average 3.605131414267835) internal successors, (34566), 9588 states have internal predecessors, (34566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:06,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9589 states to 9589 states and 34566 transitions. [2022-03-01 16:13:06,776 INFO L78 Accepts]: Start accepts. Automaton has 9589 states and 34566 transitions. Word has length 156 [2022-03-01 16:13:06,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:13:06,777 INFO L470 AbstractCegarLoop]: Abstraction has 9589 states and 34566 transitions. [2022-03-01 16:13:06,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.833333333333334) internal successors, (178), 12 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:06,777 INFO L276 IsEmpty]: Start isEmpty. Operand 9589 states and 34566 transitions. [2022-03-01 16:13:06,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-03-01 16:13:06,799 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:13:06,799 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:13:06,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-01 16:13:07,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:13:07,016 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:13:07,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:13:07,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1531874940, now seen corresponding path program 2 times [2022-03-01 16:13:07,017 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:13:07,017 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046281026] [2022-03-01 16:13:07,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:13:07,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:13:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:13:07,129 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-01 16:13:07,130 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:13:07,130 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046281026] [2022-03-01 16:13:07,130 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046281026] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:13:07,130 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808306294] [2022-03-01 16:13:07,130 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-01 16:13:07,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:13:07,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:13:07,132 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) [2022-03-01 16:13:07,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-01 16:13:07,243 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 16:13:07,243 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:13:07,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-01 16:13:07,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:13:07,585 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-01 16:13:07,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:13:07,825 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-01 16:13:07,826 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808306294] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:13:07,826 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:13:07,826 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 21 [2022-03-01 16:13:07,826 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452871236] [2022-03-01 16:13:07,826 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:13:07,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-01 16:13:07,827 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:13:07,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-01 16:13:07,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2022-03-01 16:13:07,828 INFO L87 Difference]: Start difference. First operand 9589 states and 34566 transitions. Second operand has 21 states, 21 states have (on average 13.380952380952381) internal successors, (281), 21 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:09,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:13:09,938 INFO L93 Difference]: Finished difference Result 23250 states and 84117 transitions. [2022-03-01 16:13:09,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-01 16:13:09,939 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 13.380952380952381) internal successors, (281), 21 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 162 [2022-03-01 16:13:09,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:13:10,012 INFO L225 Difference]: With dead ends: 23250 [2022-03-01 16:13:10,012 INFO L226 Difference]: Without dead ends: 17817 [2022-03-01 16:13:10,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1612 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=991, Invalid=4861, Unknown=0, NotChecked=0, Total=5852 [2022-03-01 16:13:10,017 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 1945 mSDsluCounter, 4291 mSDsCounter, 0 mSdLazyCounter, 1681 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1945 SdHoareTripleChecker+Valid, 4429 SdHoareTripleChecker+Invalid, 1749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 16:13:10,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1945 Valid, 4429 Invalid, 1749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1681 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 16:13:10,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17817 states. [2022-03-01 16:13:10,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17817 to 13603. [2022-03-01 16:13:10,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13603 states, 13602 states have (on average 3.663431848257609) internal successors, (49830), 13602 states have internal predecessors, (49830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:10,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13603 states to 13603 states and 49830 transitions. [2022-03-01 16:13:10,700 INFO L78 Accepts]: Start accepts. Automaton has 13603 states and 49830 transitions. Word has length 162 [2022-03-01 16:13:10,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:13:10,700 INFO L470 AbstractCegarLoop]: Abstraction has 13603 states and 49830 transitions. [2022-03-01 16:13:10,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 13.380952380952381) internal successors, (281), 21 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:10,701 INFO L276 IsEmpty]: Start isEmpty. Operand 13603 states and 49830 transitions. [2022-03-01 16:13:10,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-03-01 16:13:10,737 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:13:10,737 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:13:10,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-01 16:13:10,951 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 [2022-03-01 16:13:10,952 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:13:10,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:13:10,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1430656672, now seen corresponding path program 3 times [2022-03-01 16:13:10,952 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:13:10,953 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915662083] [2022-03-01 16:13:10,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:13:10,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:13:10,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:13:11,099 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-01 16:13:11,099 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:13:11,099 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915662083] [2022-03-01 16:13:11,099 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915662083] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:13:11,099 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419427203] [2022-03-01 16:13:11,099 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-01 16:13:11,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:13:11,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:13:11,101 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) [2022-03-01 16:13:11,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-01 16:13:11,221 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-03-01 16:13:11,221 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:13:11,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-01 16:13:11,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:13:11,639 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-01 16:13:11,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:13:12,047 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-01 16:13:12,047 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419427203] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:13:12,047 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:13:12,047 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-03-01 16:13:12,049 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081071084] [2022-03-01 16:13:12,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:13:12,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-01 16:13:12,050 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:13:12,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-01 16:13:12,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-03-01 16:13:12,051 INFO L87 Difference]: Start difference. First operand 13603 states and 49830 transitions. Second operand has 24 states, 24 states have (on average 12.125) internal successors, (291), 24 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:12,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:13:12,692 INFO L93 Difference]: Finished difference Result 20071 states and 74652 transitions. [2022-03-01 16:13:12,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 16:13:12,693 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 12.125) internal successors, (291), 24 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2022-03-01 16:13:12,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:13:12,760 INFO L225 Difference]: With dead ends: 20071 [2022-03-01 16:13:12,760 INFO L226 Difference]: Without dead ends: 20071 [2022-03-01 16:13:12,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 335 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=410, Invalid=1230, Unknown=0, NotChecked=0, Total=1640 [2022-03-01 16:13:12,761 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 1160 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:13:12,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1160 Valid, 1130 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:13:12,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20071 states. [2022-03-01 16:13:13,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20071 to 12835. [2022-03-01 16:13:13,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12835 states, 12834 states have (on average 3.661290322580645) internal successors, (46989), 12834 states have internal predecessors, (46989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:13,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12835 states to 12835 states and 46989 transitions. [2022-03-01 16:13:13,355 INFO L78 Accepts]: Start accepts. Automaton has 12835 states and 46989 transitions. Word has length 174 [2022-03-01 16:13:13,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:13:13,355 INFO L470 AbstractCegarLoop]: Abstraction has 12835 states and 46989 transitions. [2022-03-01 16:13:13,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 12.125) internal successors, (291), 24 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:13,356 INFO L276 IsEmpty]: Start isEmpty. Operand 12835 states and 46989 transitions. [2022-03-01 16:13:13,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-03-01 16:13:13,380 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:13:13,381 INFO L514 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:13:13,406 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-01 16:13:13,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:13:13,596 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:13:13,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:13:13,596 INFO L85 PathProgramCache]: Analyzing trace with hash 802068047, now seen corresponding path program 4 times [2022-03-01 16:13:13,596 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:13:13,596 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849580198] [2022-03-01 16:13:13,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:13:13,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:13:13,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:13:13,735 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-01 16:13:13,735 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:13:13,735 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849580198] [2022-03-01 16:13:13,736 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849580198] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:13:13,736 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271893477] [2022-03-01 16:13:13,736 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-01 16:13:13,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:13:13,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:13:13,737 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 16:13:13,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-01 16:13:13,847 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-01 16:13:13,848 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:13:13,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-01 16:13:13,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:13:14,245 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-01 16:13:14,245 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:13:14,672 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-01 16:13:14,672 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271893477] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:13:14,673 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:13:14,673 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-03-01 16:13:14,673 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382136097] [2022-03-01 16:13:14,673 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:13:14,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-01 16:13:14,674 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:13:14,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-01 16:13:14,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-03-01 16:13:14,674 INFO L87 Difference]: Start difference. First operand 12835 states and 46989 transitions. Second operand has 24 states, 24 states have (on average 8.875) internal successors, (213), 24 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:15,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:13:15,272 INFO L93 Difference]: Finished difference Result 24835 states and 91701 transitions. [2022-03-01 16:13:15,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 16:13:15,272 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 8.875) internal successors, (213), 24 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-03-01 16:13:15,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:13:15,342 INFO L225 Difference]: With dead ends: 24835 [2022-03-01 16:13:15,342 INFO L226 Difference]: Without dead ends: 24835 [2022-03-01 16:13:15,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 347 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=410, Invalid=1230, Unknown=0, NotChecked=0, Total=1640 [2022-03-01 16:13:15,343 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 1011 mSDsluCounter, 1267 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 1365 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:13:15,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1011 Valid, 1365 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 16:13:15,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24835 states. [2022-03-01 16:13:15,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24835 to 19835. [2022-03-01 16:13:15,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19835 states, 19834 states have (on average 3.684128264596148) internal successors, (73071), 19834 states have internal predecessors, (73071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:15,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19835 states to 19835 states and 73071 transitions. [2022-03-01 16:13:15,885 INFO L78 Accepts]: Start accepts. Automaton has 19835 states and 73071 transitions. Word has length 181 [2022-03-01 16:13:15,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:13:15,886 INFO L470 AbstractCegarLoop]: Abstraction has 19835 states and 73071 transitions. [2022-03-01 16:13:15,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 8.875) internal successors, (213), 24 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:15,886 INFO L276 IsEmpty]: Start isEmpty. Operand 19835 states and 73071 transitions. [2022-03-01 16:13:15,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-03-01 16:13:15,928 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:13:15,928 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:13:15,953 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-03-01 16:13:16,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:13:16,151 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:13:16,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:13:16,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1463254721, now seen corresponding path program 5 times [2022-03-01 16:13:16,151 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:13:16,151 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604837689] [2022-03-01 16:13:16,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:13:16,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:13:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:13:16,339 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-03-01 16:13:16,339 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:13:16,339 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604837689] [2022-03-01 16:13:16,340 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604837689] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:13:16,340 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602358363] [2022-03-01 16:13:16,340 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-01 16:13:16,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:13:16,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:13:16,348 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 16:13:16,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-01 16:13:16,470 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-03-01 16:13:16,471 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:13:16,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-01 16:13:16,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:13:16,841 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-01 16:13:16,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:13:17,113 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-01 16:13:17,113 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602358363] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:13:17,113 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:13:17,113 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 10, 10] total 24 [2022-03-01 16:13:17,113 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594854594] [2022-03-01 16:13:17,113 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:13:17,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-01 16:13:17,114 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:13:17,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-01 16:13:17,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2022-03-01 16:13:17,115 INFO L87 Difference]: Start difference. First operand 19835 states and 73071 transitions. Second operand has 24 states, 24 states have (on average 11.791666666666666) internal successors, (283), 24 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:20,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:13:20,585 INFO L93 Difference]: Finished difference Result 71385 states and 263414 transitions. [2022-03-01 16:13:20,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-03-01 16:13:20,587 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 11.791666666666666) internal successors, (283), 24 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2022-03-01 16:13:20,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:13:20,899 INFO L225 Difference]: With dead ends: 71385 [2022-03-01 16:13:20,899 INFO L226 Difference]: Without dead ends: 42057 [2022-03-01 16:13:20,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 368 SyntacticMatches, 2 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4464 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=2345, Invalid=11461, Unknown=0, NotChecked=0, Total=13806 [2022-03-01 16:13:20,903 INFO L933 BasicCegarLoop]: 358 mSDtfsCounter, 2746 mSDsluCounter, 4573 mSDsCounter, 0 mSdLazyCounter, 1983 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2746 SdHoareTripleChecker+Valid, 4623 SdHoareTripleChecker+Invalid, 2133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 1983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 16:13:20,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2746 Valid, 4623 Invalid, 2133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 1983 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 16:13:20,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42057 states. [2022-03-01 16:13:21,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42057 to 26933. [2022-03-01 16:13:21,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26933 states, 26932 states have (on average 3.6918535571067874) internal successors, (99429), 26932 states have internal predecessors, (99429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:21,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26933 states to 26933 states and 99429 transitions. [2022-03-01 16:13:21,692 INFO L78 Accepts]: Start accepts. Automaton has 26933 states and 99429 transitions. Word has length 188 [2022-03-01 16:13:21,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:13:21,692 INFO L470 AbstractCegarLoop]: Abstraction has 26933 states and 99429 transitions. [2022-03-01 16:13:21,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 11.791666666666666) internal successors, (283), 24 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:21,693 INFO L276 IsEmpty]: Start isEmpty. Operand 26933 states and 99429 transitions. [2022-03-01 16:13:21,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-03-01 16:13:21,917 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:13:21,917 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:13:21,943 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-03-01 16:13:22,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-03-01 16:13:22,138 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:13:22,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:13:22,139 INFO L85 PathProgramCache]: Analyzing trace with hash -161059487, now seen corresponding path program 6 times [2022-03-01 16:13:22,139 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:13:22,139 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523553586] [2022-03-01 16:13:22,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:13:22,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:13:22,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:13:22,291 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-03-01 16:13:22,292 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:13:22,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523553586] [2022-03-01 16:13:22,292 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523553586] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:13:22,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884525381] [2022-03-01 16:13:22,292 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-01 16:13:22,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:13:22,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:13:22,295 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 16:13:22,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-01 16:13:22,436 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2022-03-01 16:13:22,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:13:22,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 12 conjunts are in the unsatisfiable core [2022-03-01 16:13:22,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:13:22,851 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 8 proven. 22 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-03-01 16:13:22,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:13:23,114 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 8 proven. 22 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-03-01 16:13:23,114 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884525381] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:13:23,114 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:13:23,115 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 27 [2022-03-01 16:13:23,115 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296491215] [2022-03-01 16:13:23,115 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:13:23,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-03-01 16:13:23,115 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:13:23,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-03-01 16:13:23,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=610, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:13:23,116 INFO L87 Difference]: Start difference. First operand 26933 states and 99429 transitions. Second operand has 27 states, 27 states have (on average 10.88888888888889) internal successors, (294), 27 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:25,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:13:25,250 INFO L93 Difference]: Finished difference Result 36929 states and 137985 transitions. [2022-03-01 16:13:25,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-01 16:13:25,250 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 10.88888888888889) internal successors, (294), 27 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 206 [2022-03-01 16:13:25,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:13:25,377 INFO L225 Difference]: With dead ends: 36929 [2022-03-01 16:13:25,378 INFO L226 Difference]: Without dead ends: 36929 [2022-03-01 16:13:25,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 399 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1532 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1331, Invalid=4831, Unknown=0, NotChecked=0, Total=6162 [2022-03-01 16:13:25,379 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 1377 mSDsluCounter, 4860 mSDsCounter, 0 mSdLazyCounter, 2121 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1377 SdHoareTripleChecker+Valid, 4968 SdHoareTripleChecker+Invalid, 2190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 16:13:25,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1377 Valid, 4968 Invalid, 2190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2121 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 16:13:25,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36929 states. [2022-03-01 16:13:26,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36929 to 31931. [2022-03-01 16:13:26,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31931 states, 31930 states have (on average 3.7177262762292513) internal successors, (118707), 31930 states have internal predecessors, (118707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:26,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31931 states to 31931 states and 118707 transitions. [2022-03-01 16:13:26,267 INFO L78 Accepts]: Start accepts. Automaton has 31931 states and 118707 transitions. Word has length 206 [2022-03-01 16:13:26,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:13:26,268 INFO L470 AbstractCegarLoop]: Abstraction has 31931 states and 118707 transitions. [2022-03-01 16:13:26,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 10.88888888888889) internal successors, (294), 27 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:26,268 INFO L276 IsEmpty]: Start isEmpty. Operand 31931 states and 118707 transitions. [2022-03-01 16:13:26,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-03-01 16:13:26,545 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:13:26,545 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:13:26,571 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-03-01 16:13:26,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-03-01 16:13:26,771 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:13:26,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:13:26,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1428556086, now seen corresponding path program 7 times [2022-03-01 16:13:26,771 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:13:26,771 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546342175] [2022-03-01 16:13:26,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:13:26,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:13:26,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:13:26,930 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-01 16:13:26,930 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:13:26,930 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546342175] [2022-03-01 16:13:26,931 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546342175] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:13:26,931 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101492944] [2022-03-01 16:13:26,931 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-01 16:13:26,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:13:26,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:13:26,932 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 16:13:26,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-01 16:13:27,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:13:27,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 14 conjunts are in the unsatisfiable core [2022-03-01 16:13:27,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:13:27,561 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 8 proven. 22 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-01 16:13:27,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:13:28,160 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 21 proven. 9 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-01 16:13:28,160 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101492944] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:13:28,160 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:13:28,161 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 34 [2022-03-01 16:13:28,161 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103834089] [2022-03-01 16:13:28,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:13:28,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-03-01 16:13:28,161 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:13:28,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-03-01 16:13:28,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=918, Unknown=0, NotChecked=0, Total=1122 [2022-03-01 16:13:28,162 INFO L87 Difference]: Start difference. First operand 31931 states and 118707 transitions. Second operand has 34 states, 34 states have (on average 7.205882352941177) internal successors, (245), 34 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:29,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:13:29,112 INFO L93 Difference]: Finished difference Result 51275 states and 191355 transitions. [2022-03-01 16:13:29,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-01 16:13:29,112 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 7.205882352941177) internal successors, (245), 34 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 213 [2022-03-01 16:13:29,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:13:29,349 INFO L225 Difference]: With dead ends: 51275 [2022-03-01 16:13:29,349 INFO L226 Difference]: Without dead ends: 51275 [2022-03-01 16:13:29,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 405 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 881 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=764, Invalid=2658, Unknown=0, NotChecked=0, Total=3422 [2022-03-01 16:13:29,350 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 1249 mSDsluCounter, 1762 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 1832 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 16:13:29,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1249 Valid, 1832 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 16:13:29,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51275 states. [2022-03-01 16:13:30,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51275 to 43215. [2022-03-01 16:13:30,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43215 states, 43214 states have (on average 3.727611422224279) internal successors, (161085), 43214 states have internal predecessors, (161085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:30,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43215 states to 43215 states and 161085 transitions. [2022-03-01 16:13:30,817 INFO L78 Accepts]: Start accepts. Automaton has 43215 states and 161085 transitions. Word has length 213 [2022-03-01 16:13:30,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:13:30,818 INFO L470 AbstractCegarLoop]: Abstraction has 43215 states and 161085 transitions. [2022-03-01 16:13:30,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.205882352941177) internal successors, (245), 34 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:30,818 INFO L276 IsEmpty]: Start isEmpty. Operand 43215 states and 161085 transitions. [2022-03-01 16:13:30,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-03-01 16:13:30,939 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:13:30,939 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:13:30,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-01 16:13:31,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-03-01 16:13:31,141 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:13:31,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:13:31,142 INFO L85 PathProgramCache]: Analyzing trace with hash 358723684, now seen corresponding path program 8 times [2022-03-01 16:13:31,142 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:13:31,142 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176105195] [2022-03-01 16:13:31,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:13:31,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:13:31,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:13:31,337 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 14 proven. 31 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-01 16:13:31,337 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:13:31,338 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176105195] [2022-03-01 16:13:31,338 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176105195] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:13:31,338 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980280562] [2022-03-01 16:13:31,338 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-01 16:13:31,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:13:31,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:13:31,339 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 16:13:31,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-01 16:13:31,490 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 16:13:31,491 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:13:31,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 14 conjunts are in the unsatisfiable core [2022-03-01 16:13:31,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:13:31,939 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 22 proven. 23 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-01 16:13:31,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:13:32,300 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 22 proven. 23 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-01 16:13:32,300 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [980280562] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:13:32,301 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:13:32,301 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 24 [2022-03-01 16:13:32,301 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770278028] [2022-03-01 16:13:32,301 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:13:32,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-01 16:13:32,302 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:13:32,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-01 16:13:32,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2022-03-01 16:13:32,303 INFO L87 Difference]: Start difference. First operand 43215 states and 161085 transitions. Second operand has 24 states, 24 states have (on average 9.166666666666666) internal successors, (220), 24 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:35,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:13:35,730 INFO L93 Difference]: Finished difference Result 110779 states and 414336 transitions. [2022-03-01 16:13:35,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-03-01 16:13:35,730 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 9.166666666666666) internal successors, (220), 24 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 220 [2022-03-01 16:13:35,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:13:36,254 INFO L225 Difference]: With dead ends: 110779 [2022-03-01 16:13:36,254 INFO L226 Difference]: Without dead ends: 99943 [2022-03-01 16:13:36,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 428 SyntacticMatches, 2 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4638 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1891, Invalid=11449, Unknown=0, NotChecked=0, Total=13340 [2022-03-01 16:13:36,257 INFO L933 BasicCegarLoop]: 611 mSDtfsCounter, 2200 mSDsluCounter, 6959 mSDsCounter, 0 mSdLazyCounter, 1970 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2200 SdHoareTripleChecker+Valid, 7144 SdHoareTripleChecker+Invalid, 2066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 16:13:36,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2200 Valid, 7144 Invalid, 2066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1970 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 16:13:36,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99943 states. [2022-03-01 16:13:38,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99943 to 57957. [2022-03-01 16:13:38,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57957 states, 57956 states have (on average 3.738249706674029) internal successors, (216654), 57956 states have internal predecessors, (216654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:38,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57957 states to 57957 states and 216654 transitions. [2022-03-01 16:13:38,746 INFO L78 Accepts]: Start accepts. Automaton has 57957 states and 216654 transitions. Word has length 220 [2022-03-01 16:13:38,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:13:38,747 INFO L470 AbstractCegarLoop]: Abstraction has 57957 states and 216654 transitions. [2022-03-01 16:13:38,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.166666666666666) internal successors, (220), 24 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:38,747 INFO L276 IsEmpty]: Start isEmpty. Operand 57957 states and 216654 transitions. [2022-03-01 16:13:39,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-03-01 16:13:39,206 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:13:39,206 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:13:39,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-01 16:13:39,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-03-01 16:13:39,407 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-01 16:13:39,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:13:39,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1092594712, now seen corresponding path program 9 times [2022-03-01 16:13:39,408 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:13:39,408 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302089821] [2022-03-01 16:13:39,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:13:39,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:13:39,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:13:39,610 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 29 proven. 32 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-03-01 16:13:39,610 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:13:39,610 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302089821] [2022-03-01 16:13:39,610 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302089821] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 16:13:39,611 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481674849] [2022-03-01 16:13:39,611 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-01 16:13:39,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 16:13:39,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:13:39,616 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 16:13:39,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-01 16:13:39,785 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-03-01 16:13:39,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 16:13:39,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-01 16:13:39,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 16:13:40,180 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 19 proven. 13 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-03-01 16:13:40,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 16:13:40,467 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 19 proven. 13 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-03-01 16:13:40,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481674849] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 16:13:40,468 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 16:13:40,468 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 8, 8] total 26 [2022-03-01 16:13:40,468 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162270711] [2022-03-01 16:13:40,468 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 16:13:40,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 16:13:40,469 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:13:40,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 16:13:40,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2022-03-01 16:13:40,470 INFO L87 Difference]: Start difference. First operand 57957 states and 216654 transitions. Second operand has 26 states, 26 states have (on average 11.576923076923077) internal successors, (301), 26 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:46,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:13:46,682 INFO L93 Difference]: Finished difference Result 116314 states and 429648 transitions. [2022-03-01 16:13:46,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2022-03-01 16:13:46,683 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.576923076923077) internal successors, (301), 26 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 226 [2022-03-01 16:13:46,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:13:46,683 INFO L225 Difference]: With dead ends: 116314 [2022-03-01 16:13:46,683 INFO L226 Difference]: Without dead ends: 0 [2022-03-01 16:13:46,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 694 GetRequests, 540 SyntacticMatches, 1 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8058 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=3586, Invalid=20284, Unknown=0, NotChecked=0, Total=23870 [2022-03-01 16:13:46,687 INFO L933 BasicCegarLoop]: 854 mSDtfsCounter, 1976 mSDsluCounter, 11605 mSDsCounter, 0 mSdLazyCounter, 4623 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1976 SdHoareTripleChecker+Valid, 11673 SdHoareTripleChecker+Invalid, 4760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 4623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-01 16:13:46,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1976 Valid, 11673 Invalid, 4760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 4623 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-01 16:13:46,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-01 16:13:46,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-01 16:13:46,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:46,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-01 16:13:46,688 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 226 [2022-03-01 16:13:46,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:13:46,688 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-01 16:13:46,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.576923076923077) internal successors, (301), 26 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:13:46,688 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-01 16:13:46,688 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-01 16:13:46,690 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-03-01 16:13:46,691 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-01 16:13:46,691 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-01 16:13:46,691 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-01 16:13:46,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-03-01 16:13:46,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-03-01 16:13:46,909 INFO L732 BasicCegarLoop]: Path program histogram: [9, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:13:46,910 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-01 16:13:46,910 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-01 16:13:46,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.03 04:13:46 BasicIcfg [2022-03-01 16:13:46,912 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-01 16:13:46,913 INFO L158 Benchmark]: Toolchain (without parser) took 53350.26ms. Allocated memory was 189.8MB in the beginning and 6.2GB in the end (delta: 6.0GB). Free memory was 133.1MB in the beginning and 4.1GB in the end (delta: -3.9GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. [2022-03-01 16:13:46,913 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 189.8MB. Free memory is still 149.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-01 16:13:46,913 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.33ms. Allocated memory is still 189.8MB. Free memory was 133.0MB in the beginning and 158.2MB in the end (delta: -25.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-03-01 16:13:46,913 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.62ms. Allocated memory is still 189.8MB. Free memory was 158.2MB in the beginning and 156.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-01 16:13:46,914 INFO L158 Benchmark]: Boogie Preprocessor took 32.71ms. Allocated memory is still 189.8MB. Free memory was 156.2MB in the beginning and 154.9MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-01 16:13:46,914 INFO L158 Benchmark]: RCFGBuilder took 439.20ms. Allocated memory is still 189.8MB. Free memory was 154.9MB in the beginning and 137.7MB in the end (delta: 17.2MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-03-01 16:13:46,915 INFO L158 Benchmark]: TraceAbstraction took 52528.03ms. Allocated memory was 189.8MB in the beginning and 6.2GB in the end (delta: 6.0GB). Free memory was 137.3MB in the beginning and 4.1GB in the end (delta: -3.9GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. [2022-03-01 16:13:46,916 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 189.8MB. Free memory is still 149.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 292.33ms. Allocated memory is still 189.8MB. Free memory was 133.0MB in the beginning and 158.2MB in the end (delta: -25.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.62ms. Allocated memory is still 189.8MB. Free memory was 158.2MB in the beginning and 156.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.71ms. Allocated memory is still 189.8MB. Free memory was 156.2MB in the beginning and 154.9MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 439.20ms. Allocated memory is still 189.8MB. Free memory was 154.9MB in the beginning and 137.7MB in the end (delta: 17.2MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 52528.03ms. Allocated memory was 189.8MB in the beginning and 6.2GB in the end (delta: 6.0GB). Free memory was 137.3MB in the beginning and 4.1GB in the end (delta: -3.9GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 103]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 206 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 52.4s, OverallIterations: 16, TraceHistogramMax: 4, PathProgramHistogramMax: 9, EmptinessCheckTime: 1.5s, AutomataDifference: 24.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18359 SdHoareTripleChecker+Valid, 7.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18359 mSDsluCounter, 41749 SdHoareTripleChecker+Invalid, 5.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39805 mSDsCounter, 736 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15088 IncrementalHoareTripleChecker+Invalid, 15824 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 736 mSolverCounterUnsat, 4446 mSDtfsCounter, 15088 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5079 GetRequests, 4286 SyntacticMatches, 19 SemanticMatches, 774 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22192 ImplicationChecksByTransitivity, 11.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57957occurred in iteration=15, InterpolantAutomatonStates: 584, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 10.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 103798 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 11.3s InterpolantComputationTime, 4816 NumberOfCodeBlocks, 4764 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 6929 ConstructedInterpolants, 0 QuantifiedInterpolants, 18065 SizeOfPredicates, 102 NumberOfNonLiveVariables, 4733 ConjunctsInSsa, 110 ConjunctsInUnsatCore, 40 InterpolantComputations, 7 PerfectInterpolantSequences, 1268/1640 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-01 16:13:46,940 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...