/usr/bin/java -Xmx16000000000 -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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread/lazy01.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 12:58:54,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 12:58:54,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 12:58:54,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 12:58:54,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 12:58:54,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 12:58:54,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 12:58:54,868 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 12:58:54,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 12:58:54,876 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 12:58:54,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 12:58:54,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 12:58:54,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 12:58:54,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 12:58:54,884 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 12:58:54,887 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 12:58:54,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 12:58:54,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 12:58:54,898 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 12:58:54,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 12:58:54,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 12:58:54,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 12:58:54,912 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 12:58:54,915 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 12:58:54,925 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 12:58:54,925 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 12:58:54,925 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 12:58:54,929 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 12:58:54,930 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 12:58:54,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 12:58:54,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 12:58:54,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 12:58:54,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 12:58:54,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 12:58:54,938 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 12:58:54,938 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 12:58:54,939 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 12:58:54,939 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 12:58:54,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 12:58:54,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 12:58:54,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 12:58:54,944 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-11 12:58:54,967 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 12:58:54,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 12:58:54,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 12:58:54,970 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 12:58:54,970 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 12:58:54,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 12:58:54,970 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 12:58:54,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 12:58:54,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 12:58:54,971 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 12:58:54,971 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 12:58:54,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 12:58:54,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 12:58:54,972 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 12:58:54,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 12:58:54,972 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 12:58:54,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 12:58:54,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 12:58:54,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 12:58:54,973 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 12:58:54,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 12:58:54,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 12:58:54,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 12:58:54,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 12:58:54,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 12:58:54,974 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 12:58:54,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 12:58:54,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-11 12:58:54,975 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-11 12:58:54,975 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 12:58:55,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 12:58:55,388 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 12:58:55,392 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 12:58:55,394 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 12:58:55,394 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 12:58:55,395 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/lazy01.i [2020-10-11 12:58:55,477 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/271919d4b/45a74c238c7e42e88f078300bca479ec/FLAG5bc7f5ee1 [2020-10-11 12:58:55,981 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 12:58:55,982 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i [2020-10-11 12:58:55,998 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/271919d4b/45a74c238c7e42e88f078300bca479ec/FLAG5bc7f5ee1 [2020-10-11 12:58:56,272 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/271919d4b/45a74c238c7e42e88f078300bca479ec [2020-10-11 12:58:56,281 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 12:58:56,283 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 12:58:56,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 12:58:56,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 12:58:56,289 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 12:58:56,291 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:58:56" (1/1) ... [2020-10-11 12:58:56,294 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35df1466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:58:56, skipping insertion in model container [2020-10-11 12:58:56,294 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:58:56" (1/1) ... [2020-10-11 12:58:56,303 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 12:58:56,344 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 12:58:56,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 12:58:56,963 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 12:58:57,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 12:58:57,145 INFO L208 MainTranslator]: Completed translation [2020-10-11 12:58:57,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:58:57 WrapperNode [2020-10-11 12:58:57,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 12:58:57,148 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 12:58:57,148 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 12:58:57,148 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 12:58:57,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:58:57" (1/1) ... [2020-10-11 12:58:57,181 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:58:57" (1/1) ... [2020-10-11 12:58:57,211 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 12:58:57,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 12:58:57,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 12:58:57,212 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 12:58:57,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:58:57" (1/1) ... [2020-10-11 12:58:57,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:58:57" (1/1) ... [2020-10-11 12:58:57,231 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:58:57" (1/1) ... [2020-10-11 12:58:57,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:58:57" (1/1) ... [2020-10-11 12:58:57,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:58:57" (1/1) ... [2020-10-11 12:58:57,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:58:57" (1/1) ... [2020-10-11 12:58:57,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:58:57" (1/1) ... [2020-10-11 12:58:57,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 12:58:57,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 12:58:57,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 12:58:57,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 12:58:57,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:58:57" (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 [2020-10-11 12:58:57,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-11 12:58:57,377 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-11 12:58:57,377 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-11 12:58:57,377 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-10-11 12:58:57,377 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-10-11 12:58:57,378 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2020-10-11 12:58:57,378 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2020-10-11 12:58:57,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 12:58:57,378 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-11 12:58:57,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 12:58:57,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 12:58:57,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-11 12:58:57,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 12:58:57,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 12:58:57,382 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 12:58:57,867 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 12:58:57,868 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-11 12:58:57,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:58:57 BoogieIcfgContainer [2020-10-11 12:58:57,871 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 12:58:57,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 12:58:57,872 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 12:58:57,876 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 12:58:57,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:58:56" (1/3) ... [2020-10-11 12:58:57,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e7eeb29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:58:57, skipping insertion in model container [2020-10-11 12:58:57,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:58:57" (2/3) ... [2020-10-11 12:58:57,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e7eeb29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:58:57, skipping insertion in model container [2020-10-11 12:58:57,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:58:57" (3/3) ... [2020-10-11 12:58:57,881 INFO L111 eAbstractionObserver]: Analyzing ICFG lazy01.i [2020-10-11 12:58:57,898 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-11 12:58:57,898 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 12:58:57,911 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 12:58:57,912 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 12:58:57,945 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,946 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,946 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,946 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,946 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,947 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,947 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,947 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,947 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,948 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,948 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,949 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,949 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,949 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,949 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,950 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,950 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,950 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,950 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,951 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,951 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,952 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,952 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,952 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,953 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,953 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,953 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,958 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,958 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,958 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,958 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,959 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,959 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,966 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,967 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,967 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,967 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,967 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,970 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,970 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,971 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,971 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:57,971 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 12:58:58,006 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-11 12:58:58,029 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 12:58:58,029 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 12:58:58,029 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 12:58:58,030 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 12:58:58,030 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 12:58:58,030 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 12:58:58,030 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 12:58:58,030 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 12:58:58,046 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 12:58:58,048 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 78 transitions, 198 flow [2020-10-11 12:58:58,051 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 78 transitions, 198 flow [2020-10-11 12:58:58,052 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 198 flow [2020-10-11 12:58:58,108 INFO L129 PetriNetUnfolder]: 6/86 cut-off events. [2020-10-11 12:58:58,109 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-10-11 12:58:58,115 INFO L80 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 86 events. 6/86 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 129 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 52. Up to 6 conditions per place. [2020-10-11 12:58:58,119 INFO L117 LiptonReduction]: Number of co-enabled transitions 1116 [2020-10-11 12:58:58,475 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2020-10-11 12:58:59,991 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2020-10-11 12:59:00,108 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-11 12:59:00,122 INFO L132 LiptonReduction]: Checked pairs total: 4473 [2020-10-11 12:59:00,123 INFO L134 LiptonReduction]: Total number of compositions: 46 [2020-10-11 12:59:00,132 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 37 transitions, 116 flow [2020-10-11 12:59:00,197 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 492 states. [2020-10-11 12:59:00,200 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states. [2020-10-11 12:59:00,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-11 12:59:00,227 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 12:59:00,228 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 12:59:00,229 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 12:59:00,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 12:59:00,241 INFO L82 PathProgramCache]: Analyzing trace with hash 835949709, now seen corresponding path program 1 times [2020-10-11 12:59:00,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 12:59:00,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553555205] [2020-10-11 12:59:00,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 12:59:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 12:59:00,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 12:59:00,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553555205] [2020-10-11 12:59:00,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 12:59:00,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-11 12:59:00,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632722312] [2020-10-11 12:59:00,490 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 12:59:00,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 12:59:00,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 12:59:00,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 12:59:00,508 INFO L87 Difference]: Start difference. First operand 492 states. Second operand 3 states. [2020-10-11 12:59:00,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 12:59:00,565 INFO L93 Difference]: Finished difference Result 480 states and 1245 transitions. [2020-10-11 12:59:00,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 12:59:00,567 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-11 12:59:00,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 12:59:00,583 INFO L225 Difference]: With dead ends: 480 [2020-10-11 12:59:00,583 INFO L226 Difference]: Without dead ends: 250 [2020-10-11 12:59:00,584 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 12:59:00,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-10-11 12:59:00,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2020-10-11 12:59:00,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-10-11 12:59:00,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 622 transitions. [2020-10-11 12:59:00,653 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 622 transitions. Word has length 8 [2020-10-11 12:59:00,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 12:59:00,654 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 622 transitions. [2020-10-11 12:59:00,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 12:59:00,657 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 622 transitions. [2020-10-11 12:59:00,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-11 12:59:00,659 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 12:59:00,659 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 12:59:00,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 12:59:00,659 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 12:59:00,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 12:59:00,660 INFO L82 PathProgramCache]: Analyzing trace with hash 188784817, now seen corresponding path program 1 times [2020-10-11 12:59:00,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 12:59:00,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862397069] [2020-10-11 12:59:00,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 12:59:00,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 12:59:00,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 12:59:00,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862397069] [2020-10-11 12:59:00,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 12:59:00,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 12:59:00,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288189188] [2020-10-11 12:59:00,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 12:59:00,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 12:59:00,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 12:59:00,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 12:59:00,802 INFO L87 Difference]: Start difference. First operand 250 states and 622 transitions. Second operand 3 states. [2020-10-11 12:59:00,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 12:59:00,842 INFO L93 Difference]: Finished difference Result 142 states and 253 transitions. [2020-10-11 12:59:00,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 12:59:00,843 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-11 12:59:00,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 12:59:00,844 INFO L225 Difference]: With dead ends: 142 [2020-10-11 12:59:00,845 INFO L226 Difference]: Without dead ends: 140 [2020-10-11 12:59:00,845 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 12:59:00,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-11 12:59:00,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-10-11 12:59:00,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-11 12:59:00,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 250 transitions. [2020-10-11 12:59:00,855 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 250 transitions. Word has length 10 [2020-10-11 12:59:00,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 12:59:00,855 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 250 transitions. [2020-10-11 12:59:00,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 12:59:00,855 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 250 transitions. [2020-10-11 12:59:00,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-11 12:59:00,856 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 12:59:00,857 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 12:59:00,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 12:59:00,857 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 12:59:00,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 12:59:00,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1562794345, now seen corresponding path program 1 times [2020-10-11 12:59:00,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 12:59:00,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395032748] [2020-10-11 12:59:00,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 12:59:00,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 12:59:00,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 12:59:00,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395032748] [2020-10-11 12:59:00,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 12:59:00,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 12:59:00,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024514911] [2020-10-11 12:59:00,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 12:59:00,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 12:59:00,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 12:59:00,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-11 12:59:00,908 INFO L87 Difference]: Start difference. First operand 140 states and 250 transitions. Second operand 4 states. [2020-10-11 12:59:00,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 12:59:00,928 INFO L93 Difference]: Finished difference Result 135 states and 241 transitions. [2020-10-11 12:59:00,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 12:59:00,928 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-11 12:59:00,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 12:59:00,930 INFO L225 Difference]: With dead ends: 135 [2020-10-11 12:59:00,930 INFO L226 Difference]: Without dead ends: 130 [2020-10-11 12:59:00,931 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-11 12:59:00,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-11 12:59:00,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-10-11 12:59:00,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-11 12:59:00,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 232 transitions. [2020-10-11 12:59:00,940 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 232 transitions. Word has length 11 [2020-10-11 12:59:00,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 12:59:00,940 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 232 transitions. [2020-10-11 12:59:00,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 12:59:00,940 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 232 transitions. [2020-10-11 12:59:00,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 12:59:00,941 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 12:59:00,942 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 12:59:00,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 12:59:00,942 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 12:59:00,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 12:59:00,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1580374126, now seen corresponding path program 1 times [2020-10-11 12:59:00,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 12:59:00,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623711532] [2020-10-11 12:59:00,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 12:59:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 12:59:01,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 12:59:01,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623711532] [2020-10-11 12:59:01,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 12:59:01,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 12:59:01,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468404955] [2020-10-11 12:59:01,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 12:59:01,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 12:59:01,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 12:59:01,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-11 12:59:01,028 INFO L87 Difference]: Start difference. First operand 130 states and 232 transitions. Second operand 5 states. [2020-10-11 12:59:01,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 12:59:01,063 INFO L93 Difference]: Finished difference Result 125 states and 223 transitions. [2020-10-11 12:59:01,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 12:59:01,064 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-11 12:59:01,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 12:59:01,065 INFO L225 Difference]: With dead ends: 125 [2020-10-11 12:59:01,065 INFO L226 Difference]: Without dead ends: 120 [2020-10-11 12:59:01,066 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-11 12:59:01,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-11 12:59:01,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-10-11 12:59:01,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-11 12:59:01,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 214 transitions. [2020-10-11 12:59:01,073 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 214 transitions. Word has length 12 [2020-10-11 12:59:01,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 12:59:01,073 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 214 transitions. [2020-10-11 12:59:01,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 12:59:01,073 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 214 transitions. [2020-10-11 12:59:01,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-11 12:59:01,074 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 12:59:01,075 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 12:59:01,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 12:59:01,075 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 12:59:01,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 12:59:01,075 INFO L82 PathProgramCache]: Analyzing trace with hash -500515352, now seen corresponding path program 1 times [2020-10-11 12:59:01,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 12:59:01,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082887491] [2020-10-11 12:59:01,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 12:59:01,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 12:59:01,103 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 12:59:01,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 12:59:01,123 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 12:59:01,166 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-11 12:59:01,167 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-11 12:59:01,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 12:59:01,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:59:01 BasicIcfg [2020-10-11 12:59:01,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 12:59:01,248 INFO L168 Benchmark]: Toolchain (without parser) took 4964.36 ms. Allocated memory was 252.7 MB in the beginning and 369.6 MB in the end (delta: 116.9 MB). Free memory was 208.5 MB in the beginning and 300.2 MB in the end (delta: -91.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 14.2 GB. [2020-10-11 12:59:01,249 INFO L168 Benchmark]: CDTParser took 1.86 ms. Allocated memory is still 252.7 MB. Free memory is still 229.1 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 12:59:01,252 INFO L168 Benchmark]: CACSL2BoogieTranslator took 862.20 ms. Allocated memory was 252.7 MB in the beginning and 316.7 MB in the end (delta: 64.0 MB). Free memory was 208.5 MB in the beginning and 272.5 MB in the end (delta: -64.1 MB). Peak memory consumption was 33.8 MB. Max. memory is 14.2 GB. [2020-10-11 12:59:01,254 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.43 ms. Allocated memory is still 316.7 MB. Free memory was 272.5 MB in the beginning and 270.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 12:59:01,257 INFO L168 Benchmark]: Boogie Preprocessor took 36.85 ms. Allocated memory is still 316.7 MB. Free memory is still 270.0 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 12:59:01,259 INFO L168 Benchmark]: RCFGBuilder took 621.82 ms. Allocated memory is still 316.7 MB. Free memory was 270.0 MB in the beginning and 245.7 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. [2020-10-11 12:59:01,260 INFO L168 Benchmark]: TraceAbstraction took 3372.73 ms. Allocated memory was 316.7 MB in the beginning and 369.6 MB in the end (delta: 53.0 MB). Free memory was 245.7 MB in the beginning and 300.2 MB in the end (delta: -54.5 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 12:59:01,266 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.86 ms. Allocated memory is still 252.7 MB. Free memory is still 229.1 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 862.20 ms. Allocated memory was 252.7 MB in the beginning and 316.7 MB in the end (delta: 64.0 MB). Free memory was 208.5 MB in the beginning and 272.5 MB in the end (delta: -64.1 MB). Peak memory consumption was 33.8 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 63.43 ms. Allocated memory is still 316.7 MB. Free memory was 272.5 MB in the beginning and 270.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 36.85 ms. Allocated memory is still 316.7 MB. Free memory is still 270.0 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 621.82 ms. Allocated memory is still 316.7 MB. Free memory was 270.0 MB in the beginning and 245.7 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3372.73 ms. Allocated memory was 316.7 MB in the beginning and 369.6 MB in the end (delta: 53.0 MB). Free memory was 245.7 MB in the beginning and 300.2 MB in the end (delta: -54.5 MB). There was no memory consumed. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 784 VarBasedMoverChecksPositive, 46 VarBasedMoverChecksNegative, 17 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 210 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.0s, 81 PlacesBefore, 40 PlacesAfterwards, 78 TransitionsBefore, 37 TransitionsAfterwards, 1116 CoEnabledTransitionPairs, 5 FixpointIterations, 24 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 46 TotalNumberOfCompositions, 4473 MoverChecksTotal - CounterExampleResult [Line: 703]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L683] 0 pthread_mutex_t mutex; [L684] 0 int data = 0; [L712] 0 pthread_t t1, t2, t3; [L713] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data=0, mutex={6:0}] [L714] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, data=0, mutex={6:0}] [L715] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, data=0, mutex={6:0}] [L688] 1 data++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=1, mutex={6:0}] [L690] 1 return 0; [L695] 2 data+=2 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={6:0}] [L697] 2 return 0; [L702] COND TRUE 3 data >= 3 [L703] 3 __VERIFIER_error() VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 115 SDtfs, 66 SDslu, 135 SDs, 0 SdLazy, 37 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=492occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 945 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 incorrect! Received shutdown request...