/usr/bin/java -Xmx16000000000 -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-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 10:28:38,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 10:28:38,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 10:28:38,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 10:28:38,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 10:28:38,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 10:28:38,510 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 10:28:38,511 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 10:28:38,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 10:28:38,514 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 10:28:38,517 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 10:28:38,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 10:28:38,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 10:28:38,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 10:28:38,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 10:28:38,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 10:28:38,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 10:28:38,540 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 10:28:38,540 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 10:28:38,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 10:28:38,545 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-Separate.epf [2021-06-05 10:28:38,582 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 10:28:38,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 10:28:38,583 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 10:28:38,583 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 10:28:38,585 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 10:28:38,585 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 10:28:38,585 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 10:28:38,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 10:28:38,586 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 10:28:38,586 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 10:28:38,587 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 10:28:38,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 10:28:38,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 10:28:38,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 10:28:38,587 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 10:28:38,588 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 10:28:38,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 10:28:38,588 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 10:28:38,588 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 10:28:38,588 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 10:28:38,588 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 10:28:38,589 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 10:28:38,589 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 10:28:38,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 10:28:38,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 10:28:38,589 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 10:28:38,589 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 10:28:38,589 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 10:28:38,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 10:28:38,590 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 10:28:38,590 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 10:28:38,590 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 10:28:38,590 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 10:28:38,931 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 10:28:38,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 10:28:38,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 10:28:38,955 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 10:28:38,956 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 10:28:38,957 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i [2021-06-05 10:28:39,015 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9a7e72f1/1a7268371d6d487fb3f05cf24d8e7da8/FLAG2778be987 [2021-06-05 10:28:39,587 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 10:28:39,588 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i [2021-06-05 10:28:39,611 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9a7e72f1/1a7268371d6d487fb3f05cf24d8e7da8/FLAG2778be987 [2021-06-05 10:28:40,056 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9a7e72f1/1a7268371d6d487fb3f05cf24d8e7da8 [2021-06-05 10:28:40,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 10:28:40,060 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 10:28:40,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 10:28:40,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 10:28:40,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 10:28:40,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:28:40" (1/1) ... [2021-06-05 10:28:40,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c96ea49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:28:40, skipping insertion in model container [2021-06-05 10:28:40,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:28:40" (1/1) ... [2021-06-05 10:28:40,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 10:28:40,131 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 10:28:40,612 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i[76068,76081] [2021-06-05 10:28:40,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:28:40,637 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 10:28:40,698 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i[76068,76081] [2021-06-05 10:28:40,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:28:41,015 INFO L208 MainTranslator]: Completed translation [2021-06-05 10:28:41,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:28:41 WrapperNode [2021-06-05 10:28:41,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 10:28:41,017 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 10:28:41,017 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 10:28:41,017 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 10:28:41,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:28:41" (1/1) ... [2021-06-05 10:28:41,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:28:41" (1/1) ... [2021-06-05 10:28:41,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 10:28:41,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 10:28:41,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 10:28:41,079 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 10:28:41,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:28:41" (1/1) ... [2021-06-05 10:28:41,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:28:41" (1/1) ... [2021-06-05 10:28:41,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:28:41" (1/1) ... [2021-06-05 10:28:41,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:28:41" (1/1) ... [2021-06-05 10:28:41,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:28:41" (1/1) ... [2021-06-05 10:28:41,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:28:41" (1/1) ... [2021-06-05 10:28:41,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:28:41" (1/1) ... [2021-06-05 10:28:41,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 10:28:41,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 10:28:41,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 10:28:41,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 10:28:41,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:28:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 10:28:41,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 10:28:41,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-05 10:28:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-06-05 10:28:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-06-05 10:28:41,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 10:28:41,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 10:28:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 10:28:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-05 10:28:41,197 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-05 10:28:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 10:28:41,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 10:28:41,199 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 10:28:41,699 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 10:28:41,699 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-06-05 10:28:41,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:28:41 BoogieIcfgContainer [2021-06-05 10:28:41,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 10:28:41,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 10:28:41,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 10:28:41,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 10:28:41,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 10:28:40" (1/3) ... [2021-06-05 10:28:41,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69fc9648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:28:41, skipping insertion in model container [2021-06-05 10:28:41,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:28:41" (2/3) ... [2021-06-05 10:28:41,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69fc9648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:28:41, skipping insertion in model container [2021-06-05 10:28:41,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:28:41" (3/3) ... [2021-06-05 10:28:41,706 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2021-06-05 10:28:41,711 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 10:28:41,711 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 10:28:41,711 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-06-05 10:28:41,712 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 10:28:41,731 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,732 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,732 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,732 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,732 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,732 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,732 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,733 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,733 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,733 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,733 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,733 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,733 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,733 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,734 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,734 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,734 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,734 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,734 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,734 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,734 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,734 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,735 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,735 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,735 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,735 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,735 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,735 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,737 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,737 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,738 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,738 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,738 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,738 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,738 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:28:41,744 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-06-05 10:28:41,759 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-06-05 10:28:41,775 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:28:41,775 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:28:41,775 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:28:41,775 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:28:41,775 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:28:41,776 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:28:41,776 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:28:41,776 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 10:28:41,784 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 95 transitions, 198 flow [2021-06-05 10:28:41,806 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 312 states, 304 states have (on average 1.7796052631578947) internal successors, (541), 311 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:28:41,809 INFO L276 IsEmpty]: Start isEmpty. Operand has 312 states, 304 states have (on average 1.7796052631578947) internal successors, (541), 311 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:28:41,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-06-05 10:28:41,814 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:28:41,814 INFO L521 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] [2021-06-05 10:28:41,815 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:28:41,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:28:41,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1654812270, now seen corresponding path program 1 times [2021-06-05 10:28:41,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:28:41,826 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313545128] [2021-06-05 10:28:41,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:28:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:28:42,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:28:42,177 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:28:42,178 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313545128] [2021-06-05 10:28:42,178 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313545128] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:28:42,179 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:28:42,179 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 10:28:42,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040389044] [2021-06-05 10:28:42,183 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 10:28:42,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:28:42,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 10:28:42,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 10:28:42,199 INFO L87 Difference]: Start difference. First operand has 312 states, 304 states have (on average 1.7796052631578947) internal successors, (541), 311 states have internal predecessors, (541), 0 states have call successors, (0), 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 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:28:42,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:28:42,307 INFO L93 Difference]: Finished difference Result 291 states and 486 transitions. [2021-06-05 10:28:42,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 10:28:42,309 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2021-06-05 10:28:42,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:28:42,322 INFO L225 Difference]: With dead ends: 291 [2021-06-05 10:28:42,322 INFO L226 Difference]: Without dead ends: 255 [2021-06-05 10:28:42,323 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 36.8ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:28:42,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2021-06-05 10:28:42,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2021-06-05 10:28:42,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 251 states have (on average 1.7091633466135459) internal successors, (429), 254 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:28:42,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 429 transitions. [2021-06-05 10:28:42,370 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 429 transitions. Word has length 27 [2021-06-05 10:28:42,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:28:42,371 INFO L482 AbstractCegarLoop]: Abstraction has 255 states and 429 transitions. [2021-06-05 10:28:42,371 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:28:42,371 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 429 transitions. [2021-06-05 10:28:42,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-06-05 10:28:42,372 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:28:42,372 INFO L521 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] [2021-06-05 10:28:42,372 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 10:28:42,373 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:28:42,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:28:42,373 INFO L82 PathProgramCache]: Analyzing trace with hash -10744082, now seen corresponding path program 1 times [2021-06-05 10:28:42,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:28:42,374 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301563056] [2021-06-05 10:28:42,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:28:42,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:28:42,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:28:42,463 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:28:42,463 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301563056] [2021-06-05 10:28:42,463 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301563056] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:28:42,463 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:28:42,464 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 10:28:42,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368620962] [2021-06-05 10:28:42,465 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 10:28:42,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:28:42,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 10:28:42,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 10:28:42,466 INFO L87 Difference]: Start difference. First operand 255 states and 429 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:28:42,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:28:42,531 INFO L93 Difference]: Finished difference Result 253 states and 427 transitions. [2021-06-05 10:28:42,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 10:28:42,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2021-06-05 10:28:42,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:28:42,535 INFO L225 Difference]: With dead ends: 253 [2021-06-05 10:28:42,535 INFO L226 Difference]: Without dead ends: 247 [2021-06-05 10:28:42,536 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 34.3ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:28:42,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2021-06-05 10:28:42,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2021-06-05 10:28:42,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 244 states have (on average 1.7254098360655739) internal successors, (421), 246 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:28:42,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 421 transitions. [2021-06-05 10:28:42,564 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 421 transitions. Word has length 35 [2021-06-05 10:28:42,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:28:42,564 INFO L482 AbstractCegarLoop]: Abstraction has 247 states and 421 transitions. [2021-06-05 10:28:42,565 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:28:42,565 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 421 transitions. [2021-06-05 10:28:42,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-06-05 10:28:42,567 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:28:42,567 INFO L521 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] [2021-06-05 10:28:42,567 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 10:28:42,567 INFO L430 AbstractCegarLoop]: === Iteration 3 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:28:42,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:28:42,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1446939762, now seen corresponding path program 1 times [2021-06-05 10:28:42,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:28:42,576 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052860447] [2021-06-05 10:28:42,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:28:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:28:42,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:28:42,689 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:28:42,689 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052860447] [2021-06-05 10:28:42,689 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052860447] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:28:42,689 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:28:42,689 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 10:28:42,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832453578] [2021-06-05 10:28:42,690 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 10:28:42,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:28:42,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 10:28:42,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 10:28:42,695 INFO L87 Difference]: Start difference. First operand 247 states and 421 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:28:42,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:28:42,742 INFO L93 Difference]: Finished difference Result 215 states and 359 transitions. [2021-06-05 10:28:42,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 10:28:42,743 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2021-06-05 10:28:42,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:28:42,744 INFO L225 Difference]: With dead ends: 215 [2021-06-05 10:28:42,744 INFO L226 Difference]: Without dead ends: 175 [2021-06-05 10:28:42,745 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 33.7ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:28:42,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2021-06-05 10:28:42,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2021-06-05 10:28:42,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 174 states have (on average 1.632183908045977) internal successors, (284), 174 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:28:42,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 284 transitions. [2021-06-05 10:28:42,763 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 284 transitions. Word has length 42 [2021-06-05 10:28:42,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:28:42,763 INFO L482 AbstractCegarLoop]: Abstraction has 175 states and 284 transitions. [2021-06-05 10:28:42,763 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:28:42,764 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 284 transitions. [2021-06-05 10:28:42,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-06-05 10:28:42,765 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:28:42,766 INFO L521 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] [2021-06-05 10:28:42,766 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 10:28:42,766 INFO L430 AbstractCegarLoop]: === Iteration 4 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:28:42,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:28:42,766 INFO L82 PathProgramCache]: Analyzing trace with hash -1327771601, now seen corresponding path program 1 times [2021-06-05 10:28:42,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:28:42,767 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377415837] [2021-06-05 10:28:42,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:28:42,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:28:42,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:28:42,887 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:28:42,887 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377415837] [2021-06-05 10:28:42,887 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377415837] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:28:42,887 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:28:42,887 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 10:28:42,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477837256] [2021-06-05 10:28:42,888 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 10:28:42,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:28:42,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 10:28:42,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 10:28:42,889 INFO L87 Difference]: Start difference. First operand 175 states and 284 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:28:42,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:28:42,924 INFO L93 Difference]: Finished difference Result 173 states and 282 transitions. [2021-06-05 10:28:42,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 10:28:42,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2021-06-05 10:28:42,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:28:42,926 INFO L225 Difference]: With dead ends: 173 [2021-06-05 10:28:42,926 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 10:28:42,927 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 29.2ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:28:42,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 10:28:42,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 10:28:42,928 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) [2021-06-05 10:28:42,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 10:28:42,928 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64 [2021-06-05 10:28:42,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:28:42,928 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 10:28:42,928 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:28:42,928 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 10:28:42,928 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 10:28:42,928 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 10:28:42,931 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 10:28:42,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 10:28:42 BasicIcfg [2021-06-05 10:28:42,934 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 10:28:42,938 INFO L168 Benchmark]: Toolchain (without parser) took 2875.20 ms. Allocated memory was 348.1 MB in the beginning and 432.0 MB in the end (delta: 83.9 MB). Free memory was 308.7 MB in the beginning and 305.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 87.7 MB. Max. memory is 16.0 GB. [2021-06-05 10:28:42,938 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 348.1 MB. Free memory is still 328.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 10:28:42,939 INFO L168 Benchmark]: CACSL2BoogieTranslator took 954.94 ms. Allocated memory is still 348.1 MB. Free memory was 308.4 MB in the beginning and 290.7 MB in the end (delta: 17.7 MB). Peak memory consumption was 77.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:28:42,939 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.11 ms. Allocated memory is still 348.1 MB. Free memory was 289.8 MB in the beginning and 286.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-06-05 10:28:42,940 INFO L168 Benchmark]: Boogie Preprocessor took 45.64 ms. Allocated memory is still 348.1 MB. Free memory was 286.6 MB in the beginning and 284.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:28:42,940 INFO L168 Benchmark]: RCFGBuilder took 575.65 ms. Allocated memory is still 348.1 MB. Free memory was 284.5 MB in the beginning and 245.7 MB in the end (delta: 38.8 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.0 GB. [2021-06-05 10:28:42,942 INFO L168 Benchmark]: TraceAbstraction took 1232.57 ms. Allocated memory was 348.1 MB in the beginning and 432.0 MB in the end (delta: 83.9 MB). Free memory was 245.7 MB in the beginning and 305.1 MB in the end (delta: -59.4 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.0 GB. [2021-06-05 10:28:42,947 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 348.1 MB. Free memory is still 328.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 954.94 ms. Allocated memory is still 348.1 MB. Free memory was 308.4 MB in the beginning and 290.7 MB in the end (delta: 17.7 MB). Peak memory consumption was 77.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 61.11 ms. Allocated memory is still 348.1 MB. Free memory was 289.8 MB in the beginning and 286.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 45.64 ms. Allocated memory is still 348.1 MB. Free memory was 286.6 MB in the beginning and 284.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 575.65 ms. Allocated memory is still 348.1 MB. Free memory was 284.5 MB in the beginning and 245.7 MB in the end (delta: 38.8 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1232.57 ms. Allocated memory was 348.1 MB in the beginning and 432.0 MB in the end (delta: 83.9 MB). Free memory was 245.7 MB in the beginning and 305.1 MB in the end (delta: -59.4 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: 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 3 procedures, 106 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1155.9ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 12.2ms, AutomataDifference: 302.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 30.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 339 SDtfs, 315 SDslu, 633 SDs, 0 SdLazy, 65 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 59.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 134.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=312occurred in iteration=0, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 81.5ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 19.7ms SsaConstructionTime, 110.7ms SatisfiabilityAnalysisTime, 387.0ms InterpolantComputationTime, 168 NumberOfCodeBlocks, 168 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 208 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...