/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread/sync01.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 23:11:55,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 23:11:55,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 23:11:55,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 23:11:55,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 23:11:55,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 23:11:55,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 23:11:55,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 23:11:55,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 23:11:55,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 23:11:55,906 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 23:11:55,907 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 23:11:55,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 23:11:55,909 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 23:11:55,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 23:11:55,911 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 23:11:55,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 23:11:55,912 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 23:11:55,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 23:11:55,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 23:11:55,917 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 23:11:55,918 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 23:11:55,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 23:11:55,920 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 23:11:55,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 23:11:55,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 23:11:55,926 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 23:11:55,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 23:11:55,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 23:11:55,929 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 23:11:55,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 23:11:55,930 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 23:11:55,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 23:11:55,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 23:11:55,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 23:11:55,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 23:11:55,934 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-05 23:11:55,959 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 23:11:55,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 23:11:55,961 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 23:11:55,961 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 23:11:55,961 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 23:11:55,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 23:11:55,962 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 23:11:55,962 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 23:11:55,962 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 23:11:55,962 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 23:11:55,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 23:11:55,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 23:11:55,963 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 23:11:55,963 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 23:11:55,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 23:11:55,963 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 23:11:55,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 23:11:55,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 23:11:55,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 23:11:55,964 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 23:11:55,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 23:11:55,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 23:11:55,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 23:11:55,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-05 23:11:55,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 23:11:55,966 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 23:11:55,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 23:11:55,966 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-05 23:11:55,966 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 23:11:56,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 23:11:56,317 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 23:11:56,322 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 23:11:56,323 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 23:11:56,326 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 23:11:56,327 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sync01.i [2020-10-05 23:11:56,419 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/008a825f6/4c573056c13a4c16a9c437490c217416/FLAG2bb2f8f4b [2020-10-05 23:11:57,081 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 23:11:57,082 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2020-10-05 23:11:57,111 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/008a825f6/4c573056c13a4c16a9c437490c217416/FLAG2bb2f8f4b [2020-10-05 23:11:57,378 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/008a825f6/4c573056c13a4c16a9c437490c217416 [2020-10-05 23:11:57,393 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 23:11:57,395 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 23:11:57,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 23:11:57,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 23:11:57,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 23:11:57,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:11:57" (1/1) ... [2020-10-05 23:11:57,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@489b8137 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:11:57, skipping insertion in model container [2020-10-05 23:11:57,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:11:57" (1/1) ... [2020-10-05 23:11:57,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 23:11:57,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 23:11:58,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:11:58,183 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 23:11:58,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:11:58,410 INFO L208 MainTranslator]: Completed translation [2020-10-05 23:11:58,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:11:58 WrapperNode [2020-10-05 23:11:58,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 23:11:58,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 23:11:58,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 23:11:58,412 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 23:11:58,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:11:58" (1/1) ... [2020-10-05 23:11:58,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:11:58" (1/1) ... [2020-10-05 23:11:58,470 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 23:11:58,471 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 23:11:58,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 23:11:58,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 23:11:58,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:11:58" (1/1) ... [2020-10-05 23:11:58,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:11:58" (1/1) ... [2020-10-05 23:11:58,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:11:58" (1/1) ... [2020-10-05 23:11:58,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:11:58" (1/1) ... [2020-10-05 23:11:58,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:11:58" (1/1) ... [2020-10-05 23:11:58,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:11:58" (1/1) ... [2020-10-05 23:11:58,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:11:58" (1/1) ... [2020-10-05 23:11:58,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 23:11:58,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 23:11:58,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 23:11:58,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 23:11:58,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:11:58" (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 [2020-10-05 23:11:58,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 23:11:58,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 23:11:58,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-05 23:11:58,567 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-05 23:11:58,568 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-05 23:11:58,569 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-10-05 23:11:58,569 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-10-05 23:11:58,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 23:11:58,570 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-05 23:11:58,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-05 23:11:58,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 23:11:58,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 23:11:58,575 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 23:11:59,024 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 23:11:59,025 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-05 23:11:59,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:11:59 BoogieIcfgContainer [2020-10-05 23:11:59,027 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 23:11:59,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 23:11:59,029 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 23:11:59,033 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 23:11:59,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 11:11:57" (1/3) ... [2020-10-05 23:11:59,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a4c41e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:11:59, skipping insertion in model container [2020-10-05 23:11:59,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:11:58" (2/3) ... [2020-10-05 23:11:59,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a4c41e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:11:59, skipping insertion in model container [2020-10-05 23:11:59,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:11:59" (3/3) ... [2020-10-05 23:11:59,037 INFO L109 eAbstractionObserver]: Analyzing ICFG sync01.i [2020-10-05 23:11:59,049 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 23:11:59,049 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-05 23:11:59,059 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-05 23:11:59,060 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 23:11:59,091 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,092 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,092 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,092 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,093 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,093 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,094 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,094 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,094 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,095 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,095 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,095 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,095 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,096 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,096 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,096 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,097 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,097 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,097 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,098 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,098 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,098 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,099 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,099 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,099 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,099 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,103 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,104 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,104 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,104 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,105 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,105 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,105 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,113 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,113 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,114 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,114 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,114 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,114 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,115 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:59,141 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-05 23:11:59,163 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 23:11:59,163 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 23:11:59,163 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-05 23:11:59,163 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 23:11:59,164 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 23:11:59,164 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 23:11:59,164 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 23:11:59,164 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 23:11:59,182 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 91 transitions, 204 flow [2020-10-05 23:11:59,184 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions, 204 flow [2020-10-05 23:11:59,261 INFO L129 PetriNetUnfolder]: 6/91 cut-off events. [2020-10-05 23:11:59,261 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-05 23:11:59,268 INFO L80 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 91 events. 6/91 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 55. Up to 3 conditions per place. [2020-10-05 23:11:59,271 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions, 204 flow [2020-10-05 23:11:59,300 INFO L129 PetriNetUnfolder]: 6/91 cut-off events. [2020-10-05 23:11:59,300 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-05 23:11:59,301 INFO L80 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 91 events. 6/91 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 55. Up to 3 conditions per place. [2020-10-05 23:11:59,303 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 840 [2020-10-05 23:11:59,305 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-05 23:11:59,654 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-10-05 23:12:01,086 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-05 23:12:01,446 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-05 23:12:01,679 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-05 23:12:02,265 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 147 [2020-10-05 23:12:02,551 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-05 23:12:02,563 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2947 [2020-10-05 23:12:02,564 INFO L214 etLargeBlockEncoding]: Total number of compositions: 65 [2020-10-05 23:12:02,568 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 34 transitions, 90 flow [2020-10-05 23:12:02,590 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 198 states. [2020-10-05 23:12:02,592 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2020-10-05 23:12:02,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-05 23:12:02,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:12:02,607 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:12:02,608 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:12:02,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:12:02,615 INFO L82 PathProgramCache]: Analyzing trace with hash 543680642, now seen corresponding path program 1 times [2020-10-05 23:12:02,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:12:02,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778659120] [2020-10-05 23:12:02,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:12:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:12:02,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:12:02,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778659120] [2020-10-05 23:12:02,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:12:02,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:12:02,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537037019] [2020-10-05 23:12:02,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-05 23:12:02,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:12:02,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-05 23:12:02,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-05 23:12:02,878 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 2 states. [2020-10-05 23:12:02,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:12:02,903 INFO L93 Difference]: Finished difference Result 198 states and 455 transitions. [2020-10-05 23:12:02,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-05 23:12:02,905 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2020-10-05 23:12:02,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:12:02,921 INFO L225 Difference]: With dead ends: 198 [2020-10-05 23:12:02,921 INFO L226 Difference]: Without dead ends: 197 [2020-10-05 23:12:02,923 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-05 23:12:02,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-10-05 23:12:02,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2020-10-05 23:12:02,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-10-05 23:12:02,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 454 transitions. [2020-10-05 23:12:02,991 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 454 transitions. Word has length 17 [2020-10-05 23:12:02,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:12:02,997 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 454 transitions. [2020-10-05 23:12:02,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-05 23:12:02,998 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 454 transitions. [2020-10-05 23:12:03,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-05 23:12:03,003 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:12:03,003 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:12:03,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 23:12:03,004 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:12:03,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:12:03,005 INFO L82 PathProgramCache]: Analyzing trace with hash -142821842, now seen corresponding path program 1 times [2020-10-05 23:12:03,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:12:03,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053924879] [2020-10-05 23:12:03,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:12:03,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:12:03,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:12:03,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053924879] [2020-10-05 23:12:03,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:12:03,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:12:03,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207806160] [2020-10-05 23:12:03,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:12:03,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:12:03,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:12:03,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:12:03,159 INFO L87 Difference]: Start difference. First operand 197 states and 454 transitions. Second operand 3 states. [2020-10-05 23:12:03,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:12:03,187 INFO L93 Difference]: Finished difference Result 107 states and 223 transitions. [2020-10-05 23:12:03,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:12:03,188 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-10-05 23:12:03,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:12:03,189 INFO L225 Difference]: With dead ends: 107 [2020-10-05 23:12:03,190 INFO L226 Difference]: Without dead ends: 107 [2020-10-05 23:12:03,191 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:12:03,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-05 23:12:03,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-10-05 23:12:03,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-05 23:12:03,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 223 transitions. [2020-10-05 23:12:03,201 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 223 transitions. Word has length 21 [2020-10-05 23:12:03,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:12:03,201 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 223 transitions. [2020-10-05 23:12:03,202 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:12:03,202 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 223 transitions. [2020-10-05 23:12:03,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-05 23:12:03,203 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:12:03,203 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:12:03,204 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 23:12:03,204 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:12:03,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:12:03,204 INFO L82 PathProgramCache]: Analyzing trace with hash 654447530, now seen corresponding path program 2 times [2020-10-05 23:12:03,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:12:03,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078429920] [2020-10-05 23:12:03,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:12:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:12:03,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:12:03,327 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078429920] [2020-10-05 23:12:03,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:12:03,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 23:12:03,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390268189] [2020-10-05 23:12:03,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 23:12:03,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:12:03,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 23:12:03,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:12:03,330 INFO L87 Difference]: Start difference. First operand 107 states and 223 transitions. Second operand 5 states. [2020-10-05 23:12:03,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:12:03,408 INFO L93 Difference]: Finished difference Result 80 states and 137 transitions. [2020-10-05 23:12:03,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 23:12:03,409 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-05 23:12:03,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:12:03,410 INFO L225 Difference]: With dead ends: 80 [2020-10-05 23:12:03,410 INFO L226 Difference]: Without dead ends: 80 [2020-10-05 23:12:03,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-05 23:12:03,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-05 23:12:03,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-10-05 23:12:03,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-05 23:12:03,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 137 transitions. [2020-10-05 23:12:03,418 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 137 transitions. Word has length 21 [2020-10-05 23:12:03,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:12:03,418 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 137 transitions. [2020-10-05 23:12:03,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 23:12:03,418 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 137 transitions. [2020-10-05 23:12:03,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-05 23:12:03,420 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:12:03,420 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:12:03,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 23:12:03,420 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:12:03,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:12:03,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1691176798, now seen corresponding path program 3 times [2020-10-05 23:12:03,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:12:03,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517934093] [2020-10-05 23:12:03,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:12:03,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:12:03,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:12:03,550 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517934093] [2020-10-05 23:12:03,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:12:03,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-05 23:12:03,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843758619] [2020-10-05 23:12:03,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-05 23:12:03,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:12:03,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-05 23:12:03,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-05 23:12:03,553 INFO L87 Difference]: Start difference. First operand 80 states and 137 transitions. Second operand 7 states. [2020-10-05 23:12:03,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:12:03,664 INFO L93 Difference]: Finished difference Result 80 states and 136 transitions. [2020-10-05 23:12:03,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-05 23:12:03,665 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-10-05 23:12:03,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:12:03,666 INFO L225 Difference]: With dead ends: 80 [2020-10-05 23:12:03,666 INFO L226 Difference]: Without dead ends: 56 [2020-10-05 23:12:03,667 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-05 23:12:03,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-05 23:12:03,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-05 23:12:03,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-05 23:12:03,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 88 transitions. [2020-10-05 23:12:03,673 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 88 transitions. Word has length 21 [2020-10-05 23:12:03,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:12:03,673 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 88 transitions. [2020-10-05 23:12:03,673 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-05 23:12:03,674 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 88 transitions. [2020-10-05 23:12:03,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-05 23:12:03,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:12:03,675 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:12:03,675 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 23:12:03,675 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:12:03,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:12:03,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1351822234, now seen corresponding path program 1 times [2020-10-05 23:12:03,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:12:03,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502899601] [2020-10-05 23:12:03,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:12:03,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:12:03,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:12:03,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502899601] [2020-10-05 23:12:03,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:12:03,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-05 23:12:03,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778058727] [2020-10-05 23:12:03,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-05 23:12:03,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:12:03,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-05 23:12:03,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-05 23:12:03,782 INFO L87 Difference]: Start difference. First operand 56 states and 88 transitions. Second operand 7 states. [2020-10-05 23:12:03,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:12:03,870 INFO L93 Difference]: Finished difference Result 53 states and 82 transitions. [2020-10-05 23:12:03,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-05 23:12:03,873 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-10-05 23:12:03,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:12:03,873 INFO L225 Difference]: With dead ends: 53 [2020-10-05 23:12:03,873 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 23:12:03,874 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-05 23:12:03,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 23:12:03,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 23:12:03,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 23:12:03,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 23:12:03,875 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-10-05 23:12:03,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:12:03,875 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 23:12:03,875 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-05 23:12:03,876 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 23:12:03,876 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 23:12:03,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 23:12:03,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 11:12:03 BasicIcfg [2020-10-05 23:12:03,882 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 23:12:03,885 INFO L168 Benchmark]: Toolchain (without parser) took 6489.40 ms. Allocated memory was 146.3 MB in the beginning and 283.1 MB in the end (delta: 136.8 MB). Free memory was 100.0 MB in the beginning and 130.7 MB in the end (delta: -30.7 MB). Peak memory consumption was 106.2 MB. Max. memory is 7.1 GB. [2020-10-05 23:12:03,888 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-05 23:12:03,892 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1012.85 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 99.8 MB in the beginning and 137.5 MB in the end (delta: -37.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. [2020-10-05 23:12:03,893 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.86 ms. Allocated memory is still 202.4 MB. Free memory was 137.5 MB in the beginning and 134.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-05 23:12:03,894 INFO L168 Benchmark]: Boogie Preprocessor took 32.89 ms. Allocated memory is still 202.4 MB. Free memory was 134.9 MB in the beginning and 132.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-05 23:12:03,895 INFO L168 Benchmark]: RCFGBuilder took 523.49 ms. Allocated memory is still 202.4 MB. Free memory was 132.9 MB in the beginning and 106.5 MB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2020-10-05 23:12:03,896 INFO L168 Benchmark]: TraceAbstraction took 4852.93 ms. Allocated memory was 202.4 MB in the beginning and 283.1 MB in the end (delta: 80.7 MB). Free memory was 105.9 MB in the beginning and 130.7 MB in the end (delta: -24.8 MB). Peak memory consumption was 55.9 MB. Max. memory is 7.1 GB. [2020-10-05 23:12:03,899 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1012.85 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 99.8 MB in the beginning and 137.5 MB in the end (delta: -37.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.86 ms. Allocated memory is still 202.4 MB. Free memory was 137.5 MB in the beginning and 134.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.89 ms. Allocated memory is still 202.4 MB. Free memory was 134.9 MB in the beginning and 132.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 523.49 ms. Allocated memory is still 202.4 MB. Free memory was 132.9 MB in the beginning and 106.5 MB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4852.93 ms. Allocated memory was 202.4 MB in the beginning and 283.1 MB in the end (delta: 80.7 MB). Free memory was 105.9 MB in the beginning and 130.7 MB in the end (delta: -24.8 MB). Peak memory consumption was 55.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 3.3s, 91 ProgramPointsBefore, 35 ProgramPointsAfterwards, 91 TransitionsBefore, 34 TransitionsAfterwards, 840 CoEnabledTransitionPairs, 8 FixpointIterations, 43 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 406 VarBasedMoverChecksPositive, 25 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2947 CheckedPairsTotal, 65 TotalNumberOfCompositions - PositiveResult [Line: 947]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 130 SDtfs, 112 SDslu, 159 SDs, 0 SdLazy, 121 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 5936 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...