/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf -i ../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 21:45:15,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 21:45:15,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 21:45:15,631 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 21:45:15,632 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 21:45:15,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 21:45:15,640 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 21:45:15,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 21:45:15,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 21:45:15,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 21:45:15,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 21:45:15,663 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 21:45:15,663 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 21:45:15,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 21:45:15,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 21:45:15,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 21:45:15,673 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 21:45:15,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 21:45:15,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 21:45:15,694 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 21:45:15,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 21:45:15,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 21:45:15,700 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 21:45:15,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 21:45:15,713 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-20 21:45:15,713 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-20 21:45:15,714 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-20 21:45:15,716 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-20 21:45:15,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-20 21:45:15,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-20 21:45:15,719 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 21:45:15,720 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 21:45:15,722 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 21:45:15,723 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 21:45:15,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 21:45:15,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 21:45:15,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 21:45:15,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 21:45:15,727 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 21:45:15,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 21:45:15,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 21:45:15,730 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-keepdead.epf [2021-01-20 21:45:15,786 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 21:45:15,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 21:45:15,790 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 21:45:15,790 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 21:45:15,791 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 21:45:15,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 21:45:15,791 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 21:45:15,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 21:45:15,792 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 21:45:15,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 21:45:15,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 21:45:15,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 21:45:15,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 21:45:15,794 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 21:45:15,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 21:45:15,795 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 21:45:15,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 21:45:15,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 21:45:15,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 21:45:15,796 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 21:45:15,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 21:45:15,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:45:15,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 21:45:15,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 21:45:15,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 21:45:15,798 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 21:45:15,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 21:45:15,799 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 21:45:15,799 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 21:45:15,799 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2021-01-20 21:45:15,799 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 21:45:15,800 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 21:45:16,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 21:45:16,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 21:45:16,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 21:45:16,318 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 21:45:16,321 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 21:45:16,323 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i [2021-01-20 21:45:16,400 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b14822f1f/c887d1b107d24757bb360e207023274f/FLAG29ebdf4d8 [2021-01-20 21:45:17,268 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 21:45:17,270 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i [2021-01-20 21:45:17,298 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b14822f1f/c887d1b107d24757bb360e207023274f/FLAG29ebdf4d8 [2021-01-20 21:45:17,393 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b14822f1f/c887d1b107d24757bb360e207023274f [2021-01-20 21:45:17,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 21:45:17,399 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 21:45:17,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 21:45:17,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 21:45:17,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 21:45:17,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:45:17" (1/1) ... [2021-01-20 21:45:17,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c3e76c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:45:17, skipping insertion in model container [2021-01-20 21:45:17,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:45:17" (1/1) ... [2021-01-20 21:45:17,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 21:45:17,473 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 21:45:18,230 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:45:18,244 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 21:45:18,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:45:18,832 INFO L208 MainTranslator]: Completed translation [2021-01-20 21:45:18,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:45:18 WrapperNode [2021-01-20 21:45:18,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 21:45:18,836 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 21:45:18,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 21:45:18,838 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 21:45:18,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:45:18" (1/1) ... [2021-01-20 21:45:18,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:45:18" (1/1) ... [2021-01-20 21:45:18,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 21:45:18,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 21:45:18,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 21:45:18,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 21:45:18,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:45:18" (1/1) ... [2021-01-20 21:45:18,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:45:18" (1/1) ... [2021-01-20 21:45:19,001 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:45:18" (1/1) ... [2021-01-20 21:45:19,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:45:18" (1/1) ... [2021-01-20 21:45:19,035 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:45:18" (1/1) ... [2021-01-20 21:45:19,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:45:18" (1/1) ... [2021-01-20 21:45:19,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:45:18" (1/1) ... [2021-01-20 21:45:19,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 21:45:19,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 21:45:19,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 21:45:19,069 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 21:45:19,070 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:45:18" (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 [2021-01-20 21:45:19,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 21:45:19,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-20 21:45:19,168 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-01-20 21:45:19,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-01-20 21:45:19,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 21:45:19,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 21:45:19,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 21:45:19,169 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-01-20 21:45:19,169 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-01-20 21:45:19,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 21:45:19,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 21:45:19,171 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 21:45:19,817 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 21:45:19,818 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2021-01-20 21:45:19,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:45:19 BoogieIcfgContainer [2021-01-20 21:45:19,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 21:45:19,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 21:45:19,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 21:45:19,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 21:45:19,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 09:45:17" (1/3) ... [2021-01-20 21:45:19,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240fca94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:45:19, skipping insertion in model container [2021-01-20 21:45:19,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:45:18" (2/3) ... [2021-01-20 21:45:19,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240fca94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:45:19, skipping insertion in model container [2021-01-20 21:45:19,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:45:19" (3/3) ... [2021-01-20 21:45:19,831 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2021-01-20 21:45:19,849 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 21:45:19,850 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 21:45:19,855 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2021-01-20 21:45:19,856 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 21:45:19,893 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,893 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,893 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,893 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,916 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,916 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,916 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,916 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,917 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,917 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,917 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,918 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,918 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,918 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,918 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,919 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,919 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,919 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,919 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,920 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,920 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,920 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,920 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,921 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,921 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,921 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,921 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,922 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,922 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,922 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,923 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,923 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,923 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,923 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,924 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,924 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,926 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,927 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,927 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,927 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,928 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,928 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,928 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,928 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,928 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:45:19,941 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-01-20 21:45:19,957 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-01-20 21:45:19,986 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 21:45:19,986 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 21:45:19,987 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 21:45:19,987 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 21:45:19,987 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 21:45:19,987 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 21:45:19,988 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 21:45:19,988 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 21:45:20,003 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 102 places, 108 transitions, 224 flow [2021-01-20 21:45:20,037 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 349 states, 341 states have (on average 1.8269794721407624) internal successors, (623), 348 states have internal predecessors, (623), 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) [2021-01-20 21:45:20,041 INFO L276 IsEmpty]: Start isEmpty. Operand has 349 states, 341 states have (on average 1.8269794721407624) internal successors, (623), 348 states have internal predecessors, (623), 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) [2021-01-20 21:45:20,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-01-20 21:45:20,050 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:45:20,051 INFO L504 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] [2021-01-20 21:45:20,052 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:45:20,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:45:20,060 INFO L82 PathProgramCache]: Analyzing trace with hash 523940374, now seen corresponding path program 1 times [2021-01-20 21:45:20,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:45:20,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983978550] [2021-01-20 21:45:20,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:45:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:45:20,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:45:20,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983978550] [2021-01-20 21:45:20,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:45:20,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-20 21:45:20,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622918244] [2021-01-20 21:45:20,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-20 21:45:20,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:45:20,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-20 21:45:20,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-20 21:45:20,670 INFO L87 Difference]: Start difference. First operand has 349 states, 341 states have (on average 1.8269794721407624) internal successors, (623), 348 states have internal predecessors, (623), 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 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2021-01-20 21:45:20,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:45:20,844 INFO L93 Difference]: Finished difference Result 309 states and 519 transitions. [2021-01-20 21:45:20,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 21:45:20,849 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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 29 [2021-01-20 21:45:20,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:45:20,852 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-01-20 21:45:20,852 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 519 transitions. Word has length 29 [2021-01-20 21:45:20,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:45:20,854 INFO L481 AbstractCegarLoop]: Abstraction has 309 states and 519 transitions. [2021-01-20 21:45:20,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2021-01-20 21:45:20,854 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 519 transitions. [2021-01-20 21:45:20,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-01-20 21:45:20,856 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:45:20,857 INFO L504 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] [2021-01-20 21:45:20,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 21:45:20,857 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:45:20,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:45:20,858 INFO L82 PathProgramCache]: Analyzing trace with hash 300800235, now seen corresponding path program 1 times [2021-01-20 21:45:20,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:45:20,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895502095] [2021-01-20 21:45:20,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:45:20,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:45:20,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:45:20,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895502095] [2021-01-20 21:45:20,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:45:20,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-20 21:45:20,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785593703] [2021-01-20 21:45:20,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-20 21:45:20,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:45:20,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-20 21:45:20,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-20 21:45:20,986 INFO L87 Difference]: Start difference. First operand 309 states and 519 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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) [2021-01-20 21:45:21,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:45:21,066 INFO L93 Difference]: Finished difference Result 309 states and 518 transitions. [2021-01-20 21:45:21,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-20 21:45:21,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 37 [2021-01-20 21:45:21,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:45:21,069 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-01-20 21:45:21,069 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 518 transitions. Word has length 37 [2021-01-20 21:45:21,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:45:21,069 INFO L481 AbstractCegarLoop]: Abstraction has 309 states and 518 transitions. [2021-01-20 21:45:21,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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) [2021-01-20 21:45:21,070 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 518 transitions. [2021-01-20 21:45:21,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-20 21:45:21,072 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:45:21,073 INFO L504 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] [2021-01-20 21:45:21,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 21:45:21,073 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:45:21,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:45:21,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1781250169, now seen corresponding path program 1 times [2021-01-20 21:45:21,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:45:21,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463819858] [2021-01-20 21:45:21,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:45:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:45:21,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:45:21,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463819858] [2021-01-20 21:45:21,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:45:21,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-20 21:45:21,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739474104] [2021-01-20 21:45:21,191 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-20 21:45:21,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:45:21,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-20 21:45:21,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-20 21:45:21,192 INFO L87 Difference]: Start difference. First operand 309 states and 518 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) [2021-01-20 21:45:21,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:45:21,251 INFO L93 Difference]: Finished difference Result 249 states and 402 transitions. [2021-01-20 21:45:21,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-20 21:45:21,252 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 [2021-01-20 21:45:21,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:45:21,253 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-01-20 21:45:21,253 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 402 transitions. Word has length 42 [2021-01-20 21:45:21,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:45:21,253 INFO L481 AbstractCegarLoop]: Abstraction has 249 states and 402 transitions. [2021-01-20 21:45:21,254 INFO L482 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) [2021-01-20 21:45:21,254 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 402 transitions. [2021-01-20 21:45:21,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-01-20 21:45:21,257 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:45:21,257 INFO L504 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] [2021-01-20 21:45:21,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 21:45:21,258 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:45:21,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:45:21,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1292805432, now seen corresponding path program 1 times [2021-01-20 21:45:21,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:45:21,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810113077] [2021-01-20 21:45:21,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:45:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:45:21,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:45:21,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810113077] [2021-01-20 21:45:21,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:45:21,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-20 21:45:21,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661526519] [2021-01-20 21:45:21,373 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-20 21:45:21,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:45:21,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-20 21:45:21,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-20 21:45:21,375 INFO L87 Difference]: Start difference. First operand 249 states and 402 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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) [2021-01-20 21:45:21,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:45:21,452 INFO L93 Difference]: Finished difference Result 245 states and 398 transitions. [2021-01-20 21:45:21,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-20 21:45:21,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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 63 [2021-01-20 21:45:21,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:45:21,454 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-01-20 21:45:21,454 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 398 transitions. Word has length 63 [2021-01-20 21:45:21,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:45:21,455 INFO L481 AbstractCegarLoop]: Abstraction has 245 states and 398 transitions. [2021-01-20 21:45:21,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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) [2021-01-20 21:45:21,455 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 398 transitions. [2021-01-20 21:45:21,456 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 21:45:21,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 21:45:21,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 09:45:21 BasicIcfg [2021-01-20 21:45:21,462 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 21:45:21,465 INFO L168 Benchmark]: Toolchain (without parser) took 4064.98 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 275.0 MB in the beginning and 212.4 MB in the end (delta: 62.6 MB). Peak memory consumption was 125.8 MB. Max. memory is 16.0 GB. [2021-01-20 21:45:21,465 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:45:21,466 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1432.00 ms. Allocated memory is still 302.0 MB. Free memory was 274.8 MB in the beginning and 172.4 MB in the end (delta: 102.4 MB). Peak memory consumption was 103.9 MB. Max. memory is 16.0 GB. [2021-01-20 21:45:21,467 INFO L168 Benchmark]: Boogie Procedure Inliner took 138.01 ms. Allocated memory is still 302.0 MB. Free memory was 172.4 MB in the beginning and 169.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-01-20 21:45:21,468 INFO L168 Benchmark]: Boogie Preprocessor took 94.28 ms. Allocated memory is still 302.0 MB. Free memory was 169.3 MB in the beginning and 166.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:45:21,468 INFO L168 Benchmark]: RCFGBuilder took 750.91 ms. Allocated memory is still 302.0 MB. Free memory was 166.1 MB in the beginning and 126.3 MB in the end (delta: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.0 GB. [2021-01-20 21:45:21,469 INFO L168 Benchmark]: TraceAbstraction took 1640.11 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 125.3 MB in the beginning and 212.4 MB in the end (delta: -87.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:45:21,473 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 1432.00 ms. Allocated memory is still 302.0 MB. Free memory was 274.8 MB in the beginning and 172.4 MB in the end (delta: 102.4 MB). Peak memory consumption was 103.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 138.01 ms. Allocated memory is still 302.0 MB. Free memory was 172.4 MB in the beginning and 169.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 94.28 ms. Allocated memory is still 302.0 MB. Free memory was 169.3 MB in the beginning and 166.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 750.91 ms. Allocated memory is still 302.0 MB. Free memory was 166.1 MB in the beginning and 126.3 MB in the end (delta: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1640.11 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 125.3 MB in the beginning and 212.4 MB in the end (delta: -87.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1691]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1691]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1691]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1691]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 99 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 369 SDtfs, 386 SDslu, 690 SDs, 0 SdLazy, 75 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=349occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 171 NumberOfCodeBlocks, 171 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 167 ConstructedInterpolants, 0 QuantifiedInterpolants, 9442 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...