/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 11:54:18,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 11:54:18,015 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 11:54:18,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 11:54:18,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 11:54:18,037 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 11:54:18,039 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 11:54:18,050 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 11:54:18,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 11:54:18,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 11:54:18,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 11:54:18,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 11:54:18,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 11:54:18,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 11:54:18,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 11:54:18,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 11:54:18,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 11:54:18,068 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 11:54:18,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 11:54:18,074 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 11:54:18,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 11:54:18,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 11:54:18,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 11:54:18,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 11:54:18,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 11:54:18,092 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 11:54:18,094 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 11:54:18,094 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 11:54:18,095 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 11:54:18,097 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 11:54:18,097 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 11:54:18,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 11:54:18,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 11:54:18,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 11:54:18,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 11:54:18,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 11:54:18,101 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 [2019-12-18 11:54:18,139 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 11:54:18,139 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 11:54:18,143 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 11:54:18,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 11:54:18,144 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 11:54:18,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 11:54:18,144 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 11:54:18,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 11:54:18,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 11:54:18,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 11:54:18,145 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 11:54:18,145 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 11:54:18,145 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 11:54:18,146 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 11:54:18,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 11:54:18,146 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 11:54:18,146 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 11:54:18,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 11:54:18,149 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 11:54:18,149 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 11:54:18,149 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 11:54:18,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 11:54:18,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 11:54:18,150 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 11:54:18,150 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 11:54:18,150 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 11:54:18,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 11:54:18,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 11:54:18,151 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-18 11:54:18,151 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 11:54:18,441 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 11:54:18,456 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 11:54:18,461 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 11:54:18,462 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 11:54:18,463 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 11:54:18,464 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i [2019-12-18 11:54:18,526 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/218bb2906/38e15b082ed94f39ad4637960731f113/FLAG05c743071 [2019-12-18 11:54:19,052 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 11:54:19,052 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i [2019-12-18 11:54:19,063 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/218bb2906/38e15b082ed94f39ad4637960731f113/FLAG05c743071 [2019-12-18 11:54:19,351 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/218bb2906/38e15b082ed94f39ad4637960731f113 [2019-12-18 11:54:19,360 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 11:54:19,362 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 11:54:19,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 11:54:19,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 11:54:19,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 11:54:19,369 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:54:19" (1/1) ... [2019-12-18 11:54:19,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76845abb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:54:19, skipping insertion in model container [2019-12-18 11:54:19,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:54:19" (1/1) ... [2019-12-18 11:54:19,381 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 11:54:19,430 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 11:54:19,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 11:54:19,939 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 11:54:19,997 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 11:54:20,072 INFO L208 MainTranslator]: Completed translation [2019-12-18 11:54:20,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:54:20 WrapperNode [2019-12-18 11:54:20,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 11:54:20,073 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 11:54:20,073 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 11:54:20,073 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 11:54:20,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:54:20" (1/1) ... [2019-12-18 11:54:20,098 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:54:20" (1/1) ... [2019-12-18 11:54:20,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 11:54:20,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 11:54:20,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 11:54:20,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 11:54:20,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:54:20" (1/1) ... [2019-12-18 11:54:20,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:54:20" (1/1) ... [2019-12-18 11:54:20,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:54:20" (1/1) ... [2019-12-18 11:54:20,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:54:20" (1/1) ... [2019-12-18 11:54:20,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:54:20" (1/1) ... [2019-12-18 11:54:20,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:54:20" (1/1) ... [2019-12-18 11:54:20,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:54:20" (1/1) ... [2019-12-18 11:54:20,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 11:54:20,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 11:54:20,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 11:54:20,155 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 11:54:20,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:54:20" (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 [2019-12-18 11:54:20,226 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-12-18 11:54:20,226 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-12-18 11:54:20,226 INFO L130 BoogieDeclarations]: Found specification of procedure thr3 [2019-12-18 11:54:20,226 INFO L138 BoogieDeclarations]: Found implementation of procedure thr3 [2019-12-18 11:54:20,227 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-18 11:54:20,227 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-18 11:54:20,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 11:54:20,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 11:54:20,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 11:54:20,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 11:54:20,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 11:54:20,230 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 11:54:20,411 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-18 11:54:20,415 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-18 11:54:20,467 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-18 11:54:20,468 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-18 11:54:20,469 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel#2 [2019-12-18 11:54:20,470 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel#2 [2019-12-18 11:54:20,539 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-18 11:54:20,539 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-18 11:54:20,591 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 11:54:20,591 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 11:54:20,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:54:20 BoogieIcfgContainer [2019-12-18 11:54:20,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 11:54:20,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 11:54:20,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 11:54:20,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 11:54:20,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 11:54:19" (1/3) ... [2019-12-18 11:54:20,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e5abeee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:54:20, skipping insertion in model container [2019-12-18 11:54:20,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:54:20" (2/3) ... [2019-12-18 11:54:20,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e5abeee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:54:20, skipping insertion in model container [2019-12-18 11:54:20,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:54:20" (3/3) ... [2019-12-18 11:54:20,601 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_pthread5_vs.i [2019-12-18 11:54:20,612 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 11:54:20,612 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 11:54:20,620 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-18 11:54:20,621 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 11:54:20,650 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,650 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,651 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,651 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,651 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,651 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,653 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,653 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,653 WARN L315 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,653 WARN L315 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,654 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,654 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,654 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,655 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,655 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,656 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,656 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,656 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,657 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,657 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,657 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,658 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,658 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,662 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,662 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,663 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,663 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,666 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,667 WARN L315 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,667 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,667 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,668 WARN L315 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,670 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,670 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,671 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,671 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:20,691 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-18 11:54:20,707 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 11:54:20,708 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 11:54:20,708 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 11:54:20,708 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 11:54:20,708 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 11:54:20,708 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 11:54:20,708 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 11:54:20,708 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 11:54:20,721 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 67 transitions [2019-12-18 11:54:20,722 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 69 places, 67 transitions [2019-12-18 11:54:20,775 INFO L126 PetriNetUnfolder]: 8/73 cut-off events. [2019-12-18 11:54:20,778 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:54:20,787 INFO L76 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 73 events. 8/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 126 event pairs. 11/72 useless extension candidates. Maximal degree in co-relation 65. Up to 4 conditions per place. [2019-12-18 11:54:20,795 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 69 places, 67 transitions [2019-12-18 11:54:20,832 INFO L126 PetriNetUnfolder]: 8/73 cut-off events. [2019-12-18 11:54:20,833 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:54:20,834 INFO L76 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 73 events. 8/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 126 event pairs. 11/72 useless extension candidates. Maximal degree in co-relation 65. Up to 4 conditions per place. [2019-12-18 11:54:20,838 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1656 [2019-12-18 11:54:20,840 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 11:54:21,860 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3412 [2019-12-18 11:54:21,860 INFO L214 etLargeBlockEncoding]: Total number of compositions: 38 [2019-12-18 11:54:21,864 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 34 transitions [2019-12-18 11:54:21,971 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1782 states. [2019-12-18 11:54:21,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1782 states. [2019-12-18 11:54:21,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-18 11:54:21,982 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:54:21,982 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:54:21,983 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 11:54:21,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:54:21,990 INFO L82 PathProgramCache]: Analyzing trace with hash -2141528937, now seen corresponding path program 1 times [2019-12-18 11:54:21,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:54:21,999 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831402331] [2019-12-18 11:54:22,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:54:22,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:54:22,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 11:54:22,210 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831402331] [2019-12-18 11:54:22,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:54:22,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 11:54:22,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459449299] [2019-12-18 11:54:22,220 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 11:54:22,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:54:22,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 11:54:22,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:54:22,240 INFO L87 Difference]: Start difference. First operand 1782 states. Second operand 3 states. [2019-12-18 11:54:22,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:54:22,374 INFO L93 Difference]: Finished difference Result 1876 states and 6602 transitions. [2019-12-18 11:54:22,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 11:54:22,376 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-18 11:54:22,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:54:22,454 INFO L225 Difference]: With dead ends: 1876 [2019-12-18 11:54:22,454 INFO L226 Difference]: Without dead ends: 1876 [2019-12-18 11:54:22,456 INFO L631 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 [2019-12-18 11:54:22,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1876 states. [2019-12-18 11:54:22,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1876 to 1836. [2019-12-18 11:54:22,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1836 states. [2019-12-18 11:54:22,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1836 states to 1836 states and 6520 transitions. [2019-12-18 11:54:22,611 INFO L78 Accepts]: Start accepts. Automaton has 1836 states and 6520 transitions. Word has length 7 [2019-12-18 11:54:22,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:54:22,612 INFO L462 AbstractCegarLoop]: Abstraction has 1836 states and 6520 transitions. [2019-12-18 11:54:22,612 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 11:54:22,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1836 states and 6520 transitions. [2019-12-18 11:54:22,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 11:54:22,613 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:54:22,613 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:54:22,614 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 11:54:22,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:54:22,614 INFO L82 PathProgramCache]: Analyzing trace with hash -889829768, now seen corresponding path program 1 times [2019-12-18 11:54:22,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:54:22,615 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093215983] [2019-12-18 11:54:22,615 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:54:22,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:54:22,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 11:54:22,720 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093215983] [2019-12-18 11:54:22,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:54:22,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 11:54:22,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850231707] [2019-12-18 11:54:22,722 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-18 11:54:22,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:54:22,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-18 11:54:22,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-18 11:54:22,723 INFO L87 Difference]: Start difference. First operand 1836 states and 6520 transitions. Second operand 6 states. [2019-12-18 11:54:22,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:54:22,888 INFO L93 Difference]: Finished difference Result 1360 states and 4084 transitions. [2019-12-18 11:54:22,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-18 11:54:22,889 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2019-12-18 11:54:22,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:54:22,899 INFO L225 Difference]: With dead ends: 1360 [2019-12-18 11:54:22,900 INFO L226 Difference]: Without dead ends: 1360 [2019-12-18 11:54:22,901 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2019-12-18 11:54:22,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1360 states. [2019-12-18 11:54:22,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1360 to 972. [2019-12-18 11:54:22,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 972 states. [2019-12-18 11:54:22,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 2936 transitions. [2019-12-18 11:54:22,941 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 2936 transitions. Word has length 9 [2019-12-18 11:54:22,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:54:22,942 INFO L462 AbstractCegarLoop]: Abstraction has 972 states and 2936 transitions. [2019-12-18 11:54:22,942 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-18 11:54:22,942 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 2936 transitions. [2019-12-18 11:54:22,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 11:54:22,945 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:54:22,945 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:54:22,945 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 11:54:22,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:54:22,946 INFO L82 PathProgramCache]: Analyzing trace with hash -829872627, now seen corresponding path program 1 times [2019-12-18 11:54:22,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:54:22,946 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285039194] [2019-12-18 11:54:22,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:54:22,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:54:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:54:23,030 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 11:54:23,031 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 11:54:23,031 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 11:54:23,031 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-18 11:54:23,042 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,042 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,042 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,043 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,043 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,043 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,043 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,044 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,044 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,044 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,044 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,044 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,045 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,045 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,045 WARN L315 ript$VariableManager]: TermVariabe thr3Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,045 WARN L315 ript$VariableManager]: TermVariabe thr3Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,046 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,046 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,046 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,046 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,046 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,047 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,047 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,047 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,048 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,048 WARN L315 ript$VariableManager]: TermVariabe thr3Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,048 WARN L315 ript$VariableManager]: TermVariabe thr3Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,048 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,048 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,048 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,049 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,049 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,049 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,049 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,050 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,050 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,050 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,050 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,051 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,051 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,051 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,051 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,051 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,052 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,052 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,052 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,054 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,054 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,054 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,054 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,065 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,065 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,066 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,066 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,075 WARN L315 ript$VariableManager]: TermVariabe thr3Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,075 WARN L315 ript$VariableManager]: TermVariabe thr3Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,076 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,076 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,076 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of2ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,078 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,079 WARN L315 ript$VariableManager]: TermVariabe thr3Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,079 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,079 WARN L315 ript$VariableManager]: TermVariabe thr3Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,079 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,081 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,081 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,081 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,081 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,087 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,087 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,087 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,087 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:23,089 INFO L249 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2019-12-18 11:54:23,089 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 11:54:23,089 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 11:54:23,089 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 11:54:23,089 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 11:54:23,090 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 11:54:23,090 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 11:54:23,090 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 11:54:23,090 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 11:54:23,093 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 107 transitions [2019-12-18 11:54:23,093 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 109 places, 107 transitions [2019-12-18 11:54:23,113 INFO L126 PetriNetUnfolder]: 12/103 cut-off events. [2019-12-18 11:54:23,113 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:54:23,118 INFO L76 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 103 events. 12/103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 248 event pairs. 26/111 useless extension candidates. Maximal degree in co-relation 114. Up to 6 conditions per place. [2019-12-18 11:54:23,126 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 109 places, 107 transitions [2019-12-18 11:54:23,144 INFO L126 PetriNetUnfolder]: 12/103 cut-off events. [2019-12-18 11:54:23,144 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:54:23,148 INFO L76 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 103 events. 12/103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 248 event pairs. 26/111 useless extension candidates. Maximal degree in co-relation 114. Up to 6 conditions per place. [2019-12-18 11:54:23,157 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 3610 [2019-12-18 11:54:23,157 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 11:54:24,365 INFO L206 etLargeBlockEncoding]: Checked pairs total: 9279 [2019-12-18 11:54:24,365 INFO L214 etLargeBlockEncoding]: Total number of compositions: 61 [2019-12-18 11:54:24,366 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 58 places, 57 transitions [2019-12-18 11:54:25,754 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 21377 states. [2019-12-18 11:54:25,754 INFO L276 IsEmpty]: Start isEmpty. Operand 21377 states. [2019-12-18 11:54:25,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 11:54:25,755 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:54:25,755 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:54:25,755 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 11:54:25,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:54:25,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1120167057, now seen corresponding path program 1 times [2019-12-18 11:54:25,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:54:25,756 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734696729] [2019-12-18 11:54:25,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:54:25,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:54:25,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 11:54:25,820 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734696729] [2019-12-18 11:54:25,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:54:25,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 11:54:25,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093546819] [2019-12-18 11:54:25,821 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 11:54:25,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:54:25,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 11:54:25,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:54:25,822 INFO L87 Difference]: Start difference. First operand 21377 states. Second operand 3 states. [2019-12-18 11:54:26,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:54:26,290 INFO L93 Difference]: Finished difference Result 25109 states and 114950 transitions. [2019-12-18 11:54:26,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 11:54:26,291 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 11:54:26,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:54:26,496 INFO L225 Difference]: With dead ends: 25109 [2019-12-18 11:54:26,496 INFO L226 Difference]: Without dead ends: 25109 [2019-12-18 11:54:26,497 INFO L631 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 [2019-12-18 11:54:26,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25109 states. [2019-12-18 11:54:28,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25109 to 23864. [2019-12-18 11:54:28,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23864 states. [2019-12-18 11:54:28,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23864 states to 23864 states and 110799 transitions. [2019-12-18 11:54:28,729 INFO L78 Accepts]: Start accepts. Automaton has 23864 states and 110799 transitions. Word has length 8 [2019-12-18 11:54:28,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:54:28,729 INFO L462 AbstractCegarLoop]: Abstraction has 23864 states and 110799 transitions. [2019-12-18 11:54:28,729 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 11:54:28,729 INFO L276 IsEmpty]: Start isEmpty. Operand 23864 states and 110799 transitions. [2019-12-18 11:54:28,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 11:54:28,736 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:54:28,736 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:54:28,736 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 11:54:28,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:54:28,737 INFO L82 PathProgramCache]: Analyzing trace with hash 940328720, now seen corresponding path program 1 times [2019-12-18 11:54:28,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:54:28,737 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329627127] [2019-12-18 11:54:28,739 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:54:28,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:54:28,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 11:54:28,826 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329627127] [2019-12-18 11:54:28,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:54:28,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 11:54:28,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869959266] [2019-12-18 11:54:28,828 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-18 11:54:28,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:54:28,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-18 11:54:28,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-18 11:54:28,828 INFO L87 Difference]: Start difference. First operand 23864 states and 110799 transitions. Second operand 6 states. [2019-12-18 11:54:29,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:54:29,266 INFO L93 Difference]: Finished difference Result 25233 states and 98049 transitions. [2019-12-18 11:54:29,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-18 11:54:29,267 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-18 11:54:29,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:54:29,400 INFO L225 Difference]: With dead ends: 25233 [2019-12-18 11:54:29,400 INFO L226 Difference]: Without dead ends: 25233 [2019-12-18 11:54:29,400 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-12-18 11:54:30,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25233 states. [2019-12-18 11:54:31,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25233 to 17071. [2019-12-18 11:54:31,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17071 states. [2019-12-18 11:54:31,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17071 states to 17071 states and 68824 transitions. [2019-12-18 11:54:31,359 INFO L78 Accepts]: Start accepts. Automaton has 17071 states and 68824 transitions. Word has length 10 [2019-12-18 11:54:31,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:54:31,360 INFO L462 AbstractCegarLoop]: Abstraction has 17071 states and 68824 transitions. [2019-12-18 11:54:31,360 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-18 11:54:31,360 INFO L276 IsEmpty]: Start isEmpty. Operand 17071 states and 68824 transitions. [2019-12-18 11:54:31,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 11:54:31,361 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:54:31,361 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:54:31,361 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 11:54:31,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:54:31,362 INFO L82 PathProgramCache]: Analyzing trace with hash -913122673, now seen corresponding path program 1 times [2019-12-18 11:54:31,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:54:31,362 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447333333] [2019-12-18 11:54:31,362 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:54:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:54:31,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 11:54:31,394 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447333333] [2019-12-18 11:54:31,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:54:31,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 11:54:31,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385806721] [2019-12-18 11:54:31,398 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 11:54:31,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:54:31,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 11:54:31,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 11:54:31,398 INFO L87 Difference]: Start difference. First operand 17071 states and 68824 transitions. Second operand 4 states. [2019-12-18 11:54:31,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:54:31,603 INFO L93 Difference]: Finished difference Result 22183 states and 86750 transitions. [2019-12-18 11:54:31,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-18 11:54:31,604 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 11:54:31,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:54:31,743 INFO L225 Difference]: With dead ends: 22183 [2019-12-18 11:54:31,744 INFO L226 Difference]: Without dead ends: 22183 [2019-12-18 11:54:31,744 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 11:54:31,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22183 states. [2019-12-18 11:54:32,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22183 to 16391. [2019-12-18 11:54:32,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16391 states. [2019-12-18 11:54:32,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16391 states to 16391 states and 65274 transitions. [2019-12-18 11:54:32,520 INFO L78 Accepts]: Start accepts. Automaton has 16391 states and 65274 transitions. Word has length 11 [2019-12-18 11:54:32,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:54:32,520 INFO L462 AbstractCegarLoop]: Abstraction has 16391 states and 65274 transitions. [2019-12-18 11:54:32,520 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 11:54:32,521 INFO L276 IsEmpty]: Start isEmpty. Operand 16391 states and 65274 transitions. [2019-12-18 11:54:32,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-18 11:54:32,521 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:54:32,521 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:54:32,522 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 11:54:32,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:54:32,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1290615274, now seen corresponding path program 1 times [2019-12-18 11:54:32,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:54:32,523 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922931669] [2019-12-18 11:54:32,523 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:54:32,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:54:32,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 11:54:32,615 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922931669] [2019-12-18 11:54:32,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:54:32,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 11:54:32,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558922208] [2019-12-18 11:54:32,616 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 11:54:32,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:54:32,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 11:54:32,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:54:32,617 INFO L87 Difference]: Start difference. First operand 16391 states and 65274 transitions. Second operand 3 states. [2019-12-18 11:54:32,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:54:32,699 INFO L93 Difference]: Finished difference Result 17150 states and 63474 transitions. [2019-12-18 11:54:32,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 11:54:32,700 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-12-18 11:54:32,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:54:32,751 INFO L225 Difference]: With dead ends: 17150 [2019-12-18 11:54:32,752 INFO L226 Difference]: Without dead ends: 17150 [2019-12-18 11:54:32,752 INFO L631 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 [2019-12-18 11:54:32,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17150 states. [2019-12-18 11:54:33,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17150 to 15012. [2019-12-18 11:54:33,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15012 states. [2019-12-18 11:54:33,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15012 states to 15012 states and 56662 transitions. [2019-12-18 11:54:33,490 INFO L78 Accepts]: Start accepts. Automaton has 15012 states and 56662 transitions. Word has length 12 [2019-12-18 11:54:33,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:54:33,491 INFO L462 AbstractCegarLoop]: Abstraction has 15012 states and 56662 transitions. [2019-12-18 11:54:33,492 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 11:54:33,492 INFO L276 IsEmpty]: Start isEmpty. Operand 15012 states and 56662 transitions. [2019-12-18 11:54:33,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-18 11:54:33,493 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:54:33,493 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:54:33,493 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 11:54:33,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:54:33,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1120898264, now seen corresponding path program 1 times [2019-12-18 11:54:33,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:54:33,494 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882427112] [2019-12-18 11:54:33,494 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:54:33,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:54:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 11:54:33,537 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 11:54:33,538 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 11:54:33,538 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 11:54:33,538 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-18 11:54:33,550 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,551 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,551 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,551 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,551 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,551 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,552 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,552 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,552 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,552 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,552 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,552 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,555 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,555 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,555 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,556 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,556 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,556 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,556 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,557 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,557 WARN L315 ript$VariableManager]: TermVariabe thr3Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,557 WARN L315 ript$VariableManager]: TermVariabe thr3Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,557 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread3of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,557 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread3of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,557 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread3of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,557 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread3of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,558 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread3of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,559 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,559 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,559 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,560 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,560 WARN L315 ript$VariableManager]: TermVariabe thr3Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,560 WARN L315 ript$VariableManager]: TermVariabe thr3Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,560 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,560 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,560 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,560 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,561 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,562 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,562 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,562 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,563 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,563 WARN L315 ript$VariableManager]: TermVariabe thr3Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,564 WARN L315 ript$VariableManager]: TermVariabe thr3Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,564 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,564 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,564 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,564 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,565 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,565 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,565 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,565 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,565 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,566 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,566 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,567 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,567 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,567 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,567 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,567 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,568 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,570 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,570 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,570 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,571 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,571 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,571 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,571 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,571 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,572 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,574 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,574 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,574 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,575 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,576 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,576 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,576 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,579 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,579 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,579 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,579 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,580 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,580 WARN L315 ript$VariableManager]: TermVariabe thr3Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,581 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,581 WARN L315 ript$VariableManager]: TermVariabe thr3Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,581 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,582 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,582 WARN L315 ript$VariableManager]: TermVariabe thr3Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,582 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,582 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,582 WARN L315 ript$VariableManager]: TermVariabe thr3Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,583 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,584 WARN L315 ript$VariableManager]: TermVariabe thr3Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,584 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread3of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,584 WARN L315 ript$VariableManager]: TermVariabe |thr3Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,584 WARN L315 ript$VariableManager]: TermVariabe thr3Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,585 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,585 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,585 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,586 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,587 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,587 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,587 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,587 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,588 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,588 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,588 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,589 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:54:33,590 INFO L249 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2019-12-18 11:54:33,590 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 11:54:33,590 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 11:54:33,590 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 11:54:33,590 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 11:54:33,590 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 11:54:33,590 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 11:54:33,591 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 11:54:33,591 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 11:54:33,593 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 149 places, 147 transitions [2019-12-18 11:54:33,593 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 149 places, 147 transitions [2019-12-18 11:54:33,634 INFO L126 PetriNetUnfolder]: 16/133 cut-off events. [2019-12-18 11:54:33,634 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:54:33,643 INFO L76 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 133 events. 16/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 372 event pairs. 45/154 useless extension candidates. Maximal degree in co-relation 149. Up to 8 conditions per place. [2019-12-18 11:54:33,653 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 149 places, 147 transitions [2019-12-18 11:54:33,681 INFO L126 PetriNetUnfolder]: 16/133 cut-off events. [2019-12-18 11:54:33,681 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:54:33,685 INFO L76 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 133 events. 16/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 372 event pairs. 45/154 useless extension candidates. Maximal degree in co-relation 149. Up to 8 conditions per place. [2019-12-18 11:54:33,693 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 6404 [2019-12-18 11:54:33,693 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 11:54:35,675 WARN L192 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2019-12-18 11:54:35,696 INFO L206 etLargeBlockEncoding]: Checked pairs total: 18690 [2019-12-18 11:54:35,697 INFO L214 etLargeBlockEncoding]: Total number of compositions: 88 [2019-12-18 11:54:35,697 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 78 places, 79 transitions [2019-12-18 11:56:19,412 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 235217 states. [2019-12-18 11:56:19,412 INFO L276 IsEmpty]: Start isEmpty. Operand 235217 states. [2019-12-18 11:56:19,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 11:56:19,412 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:56:19,413 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:56:19,413 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 11:56:19,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:56:19,413 INFO L82 PathProgramCache]: Analyzing trace with hash -331776036, now seen corresponding path program 1 times [2019-12-18 11:56:19,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:56:19,413 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340522653] [2019-12-18 11:56:19,414 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:56:19,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:56:19,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 11:56:19,441 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340522653] [2019-12-18 11:56:19,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:56:19,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 11:56:19,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467099785] [2019-12-18 11:56:19,442 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 11:56:19,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:56:19,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 11:56:19,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:56:19,443 INFO L87 Difference]: Start difference. First operand 235217 states. Second operand 3 states. [2019-12-18 11:56:29,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:56:29,095 INFO L93 Difference]: Finished difference Result 287309 states and 1623650 transitions. [2019-12-18 11:56:29,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 11:56:29,096 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 11:56:29,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:56:30,444 INFO L225 Difference]: With dead ends: 287309 [2019-12-18 11:56:30,445 INFO L226 Difference]: Without dead ends: 287309 [2019-12-18 11:56:30,445 INFO L631 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 [2019-12-18 11:56:35,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287309 states. [2019-12-18 11:56:43,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287309 to 268844. [2019-12-18 11:56:43,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268844 states. [2019-12-18 11:57:09,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268844 states to 268844 states and 1541188 transitions. [2019-12-18 11:57:09,574 INFO L78 Accepts]: Start accepts. Automaton has 268844 states and 1541188 transitions. Word has length 8 [2019-12-18 11:57:09,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:57:09,575 INFO L462 AbstractCegarLoop]: Abstraction has 268844 states and 1541188 transitions. [2019-12-18 11:57:09,575 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 11:57:09,575 INFO L276 IsEmpty]: Start isEmpty. Operand 268844 states and 1541188 transitions. [2019-12-18 11:57:09,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 11:57:09,575 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:57:09,575 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:57:09,575 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 11:57:09,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:57:09,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1430254173, now seen corresponding path program 1 times [2019-12-18 11:57:09,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:57:09,576 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741768683] [2019-12-18 11:57:09,576 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:57:09,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:57:09,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 11:57:09,622 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741768683] [2019-12-18 11:57:09,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:57:09,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 11:57:09,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776026080] [2019-12-18 11:57:09,623 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-18 11:57:09,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:57:09,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-18 11:57:09,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-18 11:57:09,624 INFO L87 Difference]: Start difference. First operand 268844 states and 1541188 transitions. Second operand 6 states. [2019-12-18 11:57:22,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:57:22,884 INFO L93 Difference]: Finished difference Result 333665 states and 1574075 transitions. [2019-12-18 11:57:22,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-18 11:57:22,884 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-18 11:57:22,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:57:24,886 INFO L225 Difference]: With dead ends: 333665 [2019-12-18 11:57:24,887 INFO L226 Difference]: Without dead ends: 333665 [2019-12-18 11:57:24,887 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2019-12-18 11:57:26,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333665 states. [2019-12-18 11:57:40,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333665 to 219901. [2019-12-18 11:57:40,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219901 states. [2019-12-18 11:57:41,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219901 states to 219901 states and 1052549 transitions. [2019-12-18 11:57:41,192 INFO L78 Accepts]: Start accepts. Automaton has 219901 states and 1052549 transitions. Word has length 10 [2019-12-18 11:57:41,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:57:41,192 INFO L462 AbstractCegarLoop]: Abstraction has 219901 states and 1052549 transitions. [2019-12-18 11:57:41,192 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-18 11:57:41,192 INFO L276 IsEmpty]: Start isEmpty. Operand 219901 states and 1052549 transitions. [2019-12-18 11:57:41,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-18 11:57:41,193 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:57:41,193 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:57:41,193 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 11:57:41,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:57:41,194 INFO L82 PathProgramCache]: Analyzing trace with hash -133803733, now seen corresponding path program 1 times [2019-12-18 11:57:41,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:57:41,194 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137762802] [2019-12-18 11:57:41,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:57:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:57:41,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 11:57:41,221 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137762802] [2019-12-18 11:57:41,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:57:41,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 11:57:41,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969568897] [2019-12-18 11:57:41,222 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 11:57:41,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:57:41,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 11:57:41,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:57:41,223 INFO L87 Difference]: Start difference. First operand 219901 states and 1052549 transitions. Second operand 3 states. Received shutdown request... [2019-12-18 11:57:48,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 11:57:48,603 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-18 11:57:48,607 WARN L227 ceAbstractionStarter]: Timeout [2019-12-18 11:57:48,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 11:57:48 BasicIcfg [2019-12-18 11:57:48,608 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 11:57:48,609 INFO L168 Benchmark]: Toolchain (without parser) took 209247.56 ms. Allocated memory was 140.5 MB in the beginning and 4.6 GB in the end (delta: 4.4 GB). Free memory was 103.1 MB in the beginning and 2.4 GB in the end (delta: -2.3 GB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2019-12-18 11:57:48,610 INFO L168 Benchmark]: CDTParser took 1.43 ms. Allocated memory is still 140.5 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-18 11:57:48,611 INFO L168 Benchmark]: CACSL2BoogieTranslator took 709.59 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 103.1 MB in the beginning and 161.7 MB in the end (delta: -58.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2019-12-18 11:57:48,611 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.58 ms. Allocated memory is still 205.0 MB. Free memory was 161.7 MB in the beginning and 159.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-18 11:57:48,612 INFO L168 Benchmark]: Boogie Preprocessor took 30.27 ms. Allocated memory is still 205.0 MB. Free memory was 159.8 MB in the beginning and 157.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-18 11:57:48,613 INFO L168 Benchmark]: RCFGBuilder took 438.66 ms. Allocated memory is still 205.0 MB. Free memory was 157.9 MB in the beginning and 136.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. [2019-12-18 11:57:48,614 INFO L168 Benchmark]: TraceAbstraction took 208013.34 ms. Allocated memory was 205.0 MB in the beginning and 4.6 GB in the end (delta: 4.4 GB). Free memory was 136.0 MB in the beginning and 2.4 GB in the end (delta: -2.3 GB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2019-12-18 11:57:48,618 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.43 ms. Allocated memory is still 140.5 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 709.59 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 103.1 MB in the beginning and 161.7 MB in the end (delta: -58.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.58 ms. Allocated memory is still 205.0 MB. Free memory was 161.7 MB in the beginning and 159.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.27 ms. Allocated memory is still 205.0 MB. Free memory was 159.8 MB in the beginning and 157.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 438.66 ms. Allocated memory is still 205.0 MB. Free memory was 157.9 MB in the beginning and 136.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 208013.34 ms. Allocated memory was 205.0 MB in the beginning and 4.6 GB in the end (delta: 4.4 GB). Free memory was 136.0 MB in the beginning and 2.4 GB in the end (delta: -2.3 GB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.1s, 69 ProgramPointsBefore, 36 ProgramPointsAfterwards, 67 TransitionsBefore, 34 TransitionsAfterwards, 1656 CoEnabledTransitionPairs, 5 FixpointIterations, 11 TrivialSequentialCompositions, 21 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 4 ChoiceCompositions, 745 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 3412 CheckedPairsTotal, 38 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.2s, 109 ProgramPointsBefore, 58 ProgramPointsAfterwards, 107 TransitionsBefore, 57 TransitionsAfterwards, 3610 CoEnabledTransitionPairs, 5 FixpointIterations, 22 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 7 ConcurrentYvCompositions, 6 ChoiceCompositions, 1826 VarBasedMoverChecksPositive, 103 VarBasedMoverChecksNegative, 59 SemBasedMoverChecksPositive, 76 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 9279 CheckedPairsTotal, 61 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.1s, 149 ProgramPointsBefore, 78 ProgramPointsAfterwards, 147 TransitionsBefore, 79 TransitionsAfterwards, 6404 CoEnabledTransitionPairs, 5 FixpointIterations, 33 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 10 ConcurrentYvCompositions, 7 ChoiceCompositions, 3160 VarBasedMoverChecksPositive, 209 VarBasedMoverChecksNegative, 175 SemBasedMoverChecksPositive, 86 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 0 MoverChecksTotal, 18690 CheckedPairsTotal, 88 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 709]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 709). Cancelled while BasicCegarLoop was constructing difference of abstraction (219901states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (101271 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 702]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 702). Cancelled while BasicCegarLoop was constructing difference of abstraction (219901states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (101271 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 60 locations, 2 error locations. Result: TIMEOUT, OverallTime: 195.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 33.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 202 SDtfs, 310 SDslu, 263 SDs, 0 SdLazy, 191 SolverSat, 134 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=268844occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 55.4s AutomataMinimizationTime, 2 MinimizatonAttempts, 132229 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 947 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown