/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-atomic/peterson.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 23:37:16,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 23:37:16,064 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 23:37:16,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 23:37:16,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 23:37:16,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 23:37:16,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 23:37:16,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 23:37:16,082 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 23:37:16,083 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 23:37:16,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 23:37:16,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 23:37:16,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 23:37:16,086 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 23:37:16,087 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 23:37:16,088 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 23:37:16,089 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 23:37:16,090 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 23:37:16,091 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 23:37:16,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 23:37:16,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 23:37:16,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 23:37:16,096 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 23:37:16,097 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 23:37:16,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 23:37:16,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 23:37:16,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 23:37:16,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 23:37:16,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 23:37:16,105 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 23:37:16,106 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 23:37:16,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 23:37:16,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 23:37:16,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 23:37:16,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 23:37:16,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 23:37:16,109 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-18 23:37:16,126 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 23:37:16,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 23:37:16,127 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 23:37:16,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 23:37:16,128 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 23:37:16,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 23:37:16,128 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 23:37:16,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 23:37:16,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 23:37:16,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 23:37:16,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 23:37:16,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 23:37:16,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 23:37:16,130 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 23:37:16,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 23:37:16,130 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 23:37:16,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 23:37:16,132 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 23:37:16,132 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 23:37:16,132 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 23:37:16,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 23:37:16,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 23:37:16,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 23:37:16,133 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 23:37:16,133 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 23:37:16,133 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 23:37:16,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 23:37:16,134 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-18 23:37:16,134 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 23:37:16,134 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 23:37:16,409 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 23:37:16,430 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 23:37:16,434 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 23:37:16,436 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 23:37:16,436 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 23:37:16,437 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/peterson.i [2019-12-18 23:37:16,512 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a567cd594/b3b1075fae0440789551a25527020590/FLAG81a250380 [2019-12-18 23:37:17,042 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 23:37:17,043 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i [2019-12-18 23:37:17,062 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a567cd594/b3b1075fae0440789551a25527020590/FLAG81a250380 [2019-12-18 23:37:17,344 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a567cd594/b3b1075fae0440789551a25527020590 [2019-12-18 23:37:17,353 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 23:37:17,354 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 23:37:17,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 23:37:17,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 23:37:17,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 23:37:17,360 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:37:17" (1/1) ... [2019-12-18 23:37:17,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d5e65ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:37:17, skipping insertion in model container [2019-12-18 23:37:17,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:37:17" (1/1) ... [2019-12-18 23:37:17,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 23:37:17,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 23:37:17,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 23:37:17,898 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 23:37:17,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 23:37:18,084 INFO L208 MainTranslator]: Completed translation [2019-12-18 23:37:18,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:37:18 WrapperNode [2019-12-18 23:37:18,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 23:37:18,086 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 23:37:18,086 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 23:37:18,086 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 23:37:18,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:37:18" (1/1) ... [2019-12-18 23:37:18,134 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:37:18" (1/1) ... [2019-12-18 23:37:18,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 23:37:18,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 23:37:18,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 23:37:18,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 23:37:18,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:37:18" (1/1) ... [2019-12-18 23:37:18,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:37:18" (1/1) ... [2019-12-18 23:37:18,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:37:18" (1/1) ... [2019-12-18 23:37:18,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:37:18" (1/1) ... [2019-12-18 23:37:18,199 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:37:18" (1/1) ... [2019-12-18 23:37:18,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:37:18" (1/1) ... [2019-12-18 23:37:18,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:37:18" (1/1) ... [2019-12-18 23:37:18,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 23:37:18,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 23:37:18,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 23:37:18,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 23:37:18,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:37:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 23:37:18,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-18 23:37:18,277 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-12-18 23:37:18,277 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-12-18 23:37:18,277 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-18 23:37:18,278 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-18 23:37:18,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 23:37:18,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 23:37:18,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 23:37:18,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 23:37:18,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 23:37:18,280 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 23:37:18,611 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 23:37:18,611 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 23:37:18,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:37:18 BoogieIcfgContainer [2019-12-18 23:37:18,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 23:37:18,614 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 23:37:18,614 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 23:37:18,617 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 23:37:18,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 11:37:17" (1/3) ... [2019-12-18 23:37:18,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0b5a0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:37:18, skipping insertion in model container [2019-12-18 23:37:18,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:37:18" (2/3) ... [2019-12-18 23:37:18,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0b5a0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:37:18, skipping insertion in model container [2019-12-18 23:37:18,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:37:18" (3/3) ... [2019-12-18 23:37:18,621 INFO L109 eAbstractionObserver]: Analyzing ICFG peterson.i [2019-12-18 23:37:18,630 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 23:37:18,631 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 23:37:18,638 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-18 23:37:18,639 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 23:37:18,665 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:37:18,665 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:37:18,665 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:37:18,666 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:37:18,667 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:37:18,667 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:37:18,668 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:37:18,668 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:37:18,668 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:37:18,668 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:37:18,669 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:37:18,669 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:37:18,673 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:37:18,674 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:37:18,674 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:37:18,674 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:37:18,680 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:37:18,681 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:37:18,681 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:37:18,681 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:37:18,701 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-18 23:37:18,718 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 23:37:18,718 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 23:37:18,718 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 23:37:18,719 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 23:37:18,719 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 23:37:18,719 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 23:37:18,719 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 23:37:18,719 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 23:37:18,729 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 62 transitions [2019-12-18 23:37:18,787 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 562 states. [2019-12-18 23:37:18,789 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states. [2019-12-18 23:37:18,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-18 23:37:18,800 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 23:37:18,801 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 23:37:18,801 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 23:37:18,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 23:37:18,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1574270369, now seen corresponding path program 1 times [2019-12-18 23:37:18,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 23:37:18,819 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440532687] [2019-12-18 23:37:18,819 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 23:37:18,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 23:37:18,993 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 23:37:18,994 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440532687] [2019-12-18 23:37:18,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 23:37:18,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 23:37:18,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306592766] [2019-12-18 23:37:19,002 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-18 23:37:19,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 23:37:19,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-18 23:37:19,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-18 23:37:19,022 INFO L87 Difference]: Start difference. First operand 562 states. Second operand 2 states. [2019-12-18 23:37:19,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 23:37:19,077 INFO L93 Difference]: Finished difference Result 562 states and 1391 transitions. [2019-12-18 23:37:19,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-18 23:37:19,079 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2019-12-18 23:37:19,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 23:37:19,115 INFO L225 Difference]: With dead ends: 562 [2019-12-18 23:37:19,116 INFO L226 Difference]: Without dead ends: 481 [2019-12-18 23:37:19,120 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-18 23:37:19,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2019-12-18 23:37:19,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2019-12-18 23:37:19,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2019-12-18 23:37:19,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 1205 transitions. [2019-12-18 23:37:19,235 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 1205 transitions. Word has length 20 [2019-12-18 23:37:19,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 23:37:19,236 INFO L462 AbstractCegarLoop]: Abstraction has 481 states and 1205 transitions. [2019-12-18 23:37:19,236 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-18 23:37:19,236 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 1205 transitions. [2019-12-18 23:37:19,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-18 23:37:19,238 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 23:37:19,238 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 23:37:19,238 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 23:37:19,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 23:37:19,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1574240578, now seen corresponding path program 1 times [2019-12-18 23:37:19,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 23:37:19,239 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707659091] [2019-12-18 23:37:19,240 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 23:37:19,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 23:37:19,325 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 23:37:19,326 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707659091] [2019-12-18 23:37:19,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 23:37:19,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 23:37:19,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225186655] [2019-12-18 23:37:19,328 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 23:37:19,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 23:37:19,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 23:37:19,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 23:37:19,329 INFO L87 Difference]: Start difference. First operand 481 states and 1205 transitions. Second operand 3 states. [2019-12-18 23:37:19,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 23:37:19,381 INFO L93 Difference]: Finished difference Result 514 states and 1238 transitions. [2019-12-18 23:37:19,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 23:37:19,382 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-12-18 23:37:19,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 23:37:19,386 INFO L225 Difference]: With dead ends: 514 [2019-12-18 23:37:19,386 INFO L226 Difference]: Without dead ends: 424 [2019-12-18 23:37:19,387 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 23:37:19,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2019-12-18 23:37:19,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 379. [2019-12-18 23:37:19,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2019-12-18 23:37:19,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 923 transitions. [2019-12-18 23:37:19,410 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 923 transitions. Word has length 20 [2019-12-18 23:37:19,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 23:37:19,410 INFO L462 AbstractCegarLoop]: Abstraction has 379 states and 923 transitions. [2019-12-18 23:37:19,411 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 23:37:19,411 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 923 transitions. [2019-12-18 23:37:19,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-18 23:37:19,413 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 23:37:19,413 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 23:37:19,413 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 23:37:19,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 23:37:19,414 INFO L82 PathProgramCache]: Analyzing trace with hash -145909775, now seen corresponding path program 1 times [2019-12-18 23:37:19,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 23:37:19,414 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272388385] [2019-12-18 23:37:19,415 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 23:37:19,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 23:37:19,493 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 23:37:19,493 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272388385] [2019-12-18 23:37:19,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 23:37:19,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 23:37:19,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709788035] [2019-12-18 23:37:19,494 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 23:37:19,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 23:37:19,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 23:37:19,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 23:37:19,495 INFO L87 Difference]: Start difference. First operand 379 states and 923 transitions. Second operand 3 states. [2019-12-18 23:37:19,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 23:37:19,519 INFO L93 Difference]: Finished difference Result 346 states and 806 transitions. [2019-12-18 23:37:19,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 23:37:19,520 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-12-18 23:37:19,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 23:37:19,522 INFO L225 Difference]: With dead ends: 346 [2019-12-18 23:37:19,522 INFO L226 Difference]: Without dead ends: 244 [2019-12-18 23:37:19,522 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 23:37:19,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2019-12-18 23:37:19,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2019-12-18 23:37:19,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2019-12-18 23:37:19,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 557 transitions. [2019-12-18 23:37:19,533 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 557 transitions. Word has length 23 [2019-12-18 23:37:19,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 23:37:19,534 INFO L462 AbstractCegarLoop]: Abstraction has 244 states and 557 transitions. [2019-12-18 23:37:19,534 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 23:37:19,535 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 557 transitions. [2019-12-18 23:37:19,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-18 23:37:19,537 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 23:37:19,537 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 23:37:19,537 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 23:37:19,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 23:37:19,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1952726074, now seen corresponding path program 1 times [2019-12-18 23:37:19,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 23:37:19,538 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516773545] [2019-12-18 23:37:19,539 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 23:37:19,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 23:37:19,620 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 23:37:19,620 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516773545] [2019-12-18 23:37:19,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 23:37:19,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 23:37:19,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022212294] [2019-12-18 23:37:19,622 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 23:37:19,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 23:37:19,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 23:37:19,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-18 23:37:19,623 INFO L87 Difference]: Start difference. First operand 244 states and 557 transitions. Second operand 4 states. [2019-12-18 23:37:19,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 23:37:19,661 INFO L93 Difference]: Finished difference Result 262 states and 602 transitions. [2019-12-18 23:37:19,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 23:37:19,662 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2019-12-18 23:37:19,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 23:37:19,664 INFO L225 Difference]: With dead ends: 262 [2019-12-18 23:37:19,664 INFO L226 Difference]: Without dead ends: 217 [2019-12-18 23:37:19,665 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-18 23:37:19,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2019-12-18 23:37:19,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2019-12-18 23:37:19,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2019-12-18 23:37:19,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 470 transitions. [2019-12-18 23:37:19,673 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 470 transitions. Word has length 28 [2019-12-18 23:37:19,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 23:37:19,674 INFO L462 AbstractCegarLoop]: Abstraction has 217 states and 470 transitions. [2019-12-18 23:37:19,674 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 23:37:19,674 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 470 transitions. [2019-12-18 23:37:19,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-18 23:37:19,676 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 23:37:19,676 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 23:37:19,676 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 23:37:19,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 23:37:19,677 INFO L82 PathProgramCache]: Analyzing trace with hash -1980914822, now seen corresponding path program 2 times [2019-12-18 23:37:19,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 23:37:19,677 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777771269] [2019-12-18 23:37:19,678 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 23:37:19,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 23:37:19,761 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 23:37:19,761 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777771269] [2019-12-18 23:37:19,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 23:37:19,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 23:37:19,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957433087] [2019-12-18 23:37:19,762 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 23:37:19,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 23:37:19,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 23:37:19,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-18 23:37:19,763 INFO L87 Difference]: Start difference. First operand 217 states and 470 transitions. Second operand 4 states. [2019-12-18 23:37:19,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 23:37:19,788 INFO L93 Difference]: Finished difference Result 94 states and 208 transitions. [2019-12-18 23:37:19,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 23:37:19,789 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2019-12-18 23:37:19,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 23:37:19,789 INFO L225 Difference]: With dead ends: 94 [2019-12-18 23:37:19,790 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 23:37:19,790 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-18 23:37:19,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 23:37:19,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 23:37:19,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 23:37:19,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 23:37:19,791 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2019-12-18 23:37:19,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 23:37:19,791 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 23:37:19,791 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 23:37:19,792 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 23:37:19,792 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 23:37:19,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 11:37:19 BasicIcfg [2019-12-18 23:37:19,801 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 23:37:19,806 INFO L168 Benchmark]: Toolchain (without parser) took 2448.71 ms. Allocated memory was 145.2 MB in the beginning and 235.9 MB in the end (delta: 90.7 MB). Free memory was 101.6 MB in the beginning and 169.4 MB in the end (delta: -67.8 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2019-12-18 23:37:19,807 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-18 23:37:19,809 INFO L168 Benchmark]: CACSL2BoogieTranslator took 730.02 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 101.4 MB in the beginning and 164.2 MB in the end (delta: -62.8 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2019-12-18 23:37:19,815 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.87 ms. Allocated memory is still 203.9 MB. Free memory was 164.2 MB in the beginning and 162.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-12-18 23:37:19,816 INFO L168 Benchmark]: Boogie Preprocessor took 51.73 ms. Allocated memory is still 203.9 MB. Free memory was 162.0 MB in the beginning and 160.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 23:37:19,817 INFO L168 Benchmark]: RCFGBuilder took 393.82 ms. Allocated memory is still 203.9 MB. Free memory was 160.7 MB in the beginning and 140.9 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. [2019-12-18 23:37:19,818 INFO L168 Benchmark]: TraceAbstraction took 1187.11 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 140.3 MB in the beginning and 169.4 MB in the end (delta: -29.1 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2019-12-18 23:37:19,829 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 730.02 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 101.4 MB in the beginning and 164.2 MB in the end (delta: -62.8 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 74.87 ms. Allocated memory is still 203.9 MB. Free memory was 164.2 MB in the beginning and 162.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 51.73 ms. Allocated memory is still 203.9 MB. Free memory was 162.0 MB in the beginning and 160.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 393.82 ms. Allocated memory is still 203.9 MB. Free memory was 160.7 MB in the beginning and 140.9 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1187.11 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 140.3 MB in the beginning and 169.4 MB in the end (delta: -29.1 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 690]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 681]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 55 locations, 2 error locations. Result: SAFE, OverallTime: 1.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 259 SDtfs, 92 SDslu, 134 SDs, 0 SdLazy, 33 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=562occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 45 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 3664 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...