/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-ext/16_peterson.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 22:43:18,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 22:43:18,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 22:43:18,733 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 22:43:18,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 22:43:18,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 22:43:18,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 22:43:18,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 22:43:18,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 22:43:18,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 22:43:18,741 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 22:43:18,742 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 22:43:18,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 22:43:18,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 22:43:18,744 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 22:43:18,745 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 22:43:18,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 22:43:18,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 22:43:18,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 22:43:18,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 22:43:18,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 22:43:18,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 22:43:18,757 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 22:43:18,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 22:43:18,762 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-21 22:43:18,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 22:43:18,780 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 22:43:18,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 22:43:18,784 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-21 22:43:18,829 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 22:43:18,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 22:43:18,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 22:43:18,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 22:43:18,832 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 22:43:18,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 22:43:18,833 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 22:43:18,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 22:43:18,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 22:43:18,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 22:43:18,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 22:43:18,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 22:43:18,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 22:43:18,834 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 22:43:18,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 22:43:18,835 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 22:43:18,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 22:43:18,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 22:43:18,835 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 22:43:18,835 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 22:43:18,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 22:43:18,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:43:18,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 22:43:18,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-21 22:43:18,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 22:43:18,838 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 22:43:18,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 22:43:18,839 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-21 22:43:18,839 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 22:43:19,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 22:43:19,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 22:43:19,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 22:43:19,180 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 22:43:19,180 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 22:43:19,181 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/16_peterson.i [2020-10-21 22:43:19,243 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db55aa13b/7ec88c685ac042ad892c35ff34f59452/FLAGce4e9bb2f [2020-10-21 22:43:19,801 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 22:43:19,801 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/16_peterson.i [2020-10-21 22:43:19,816 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db55aa13b/7ec88c685ac042ad892c35ff34f59452/FLAGce4e9bb2f [2020-10-21 22:43:20,068 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db55aa13b/7ec88c685ac042ad892c35ff34f59452 [2020-10-21 22:43:20,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 22:43:20,083 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 22:43:20,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 22:43:20,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 22:43:20,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 22:43:20,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:43:20" (1/1) ... [2020-10-21 22:43:20,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ed3d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:43:20, skipping insertion in model container [2020-10-21 22:43:20,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:43:20" (1/1) ... [2020-10-21 22:43:20,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 22:43:20,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 22:43:20,500 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-10-21 22:43:20,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:43:20,724 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 22:43:20,754 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-10-21 22:43:20,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:43:20,879 INFO L208 MainTranslator]: Completed translation [2020-10-21 22:43:20,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:43:20 WrapperNode [2020-10-21 22:43:20,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 22:43:20,881 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 22:43:20,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 22:43:20,881 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 22:43:20,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:43:20" (1/1) ... [2020-10-21 22:43:20,906 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:43:20" (1/1) ... [2020-10-21 22:43:20,931 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 22:43:20,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 22:43:20,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 22:43:20,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 22:43:20,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:43:20" (1/1) ... [2020-10-21 22:43:20,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:43:20" (1/1) ... [2020-10-21 22:43:20,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:43:20" (1/1) ... [2020-10-21 22:43:20,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:43:20" (1/1) ... [2020-10-21 22:43:20,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:43:20" (1/1) ... [2020-10-21 22:43:20,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:43:20" (1/1) ... [2020-10-21 22:43:20,957 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:43:20" (1/1) ... [2020-10-21 22:43:20,961 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 22:43:20,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 22:43:20,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 22:43:20,962 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 22:43:20,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:43:20" (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 [2020-10-21 22:43:21,032 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-21 22:43:21,032 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-21 22:43:21,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 22:43:21,032 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 22:43:21,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 22:43:21,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 22:43:21,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 22:43:21,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 22:43:21,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 22:43:21,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 22:43:21,035 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 22:43:21,355 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 22:43:21,355 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-10-21 22:43:21,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:43:21 BoogieIcfgContainer [2020-10-21 22:43:21,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 22:43:21,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 22:43:21,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 22:43:21,363 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 22:43:21,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 10:43:20" (1/3) ... [2020-10-21 22:43:21,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e001ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:43:21, skipping insertion in model container [2020-10-21 22:43:21,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:43:20" (2/3) ... [2020-10-21 22:43:21,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e001ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:43:21, skipping insertion in model container [2020-10-21 22:43:21,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:43:21" (3/3) ... [2020-10-21 22:43:21,367 INFO L111 eAbstractionObserver]: Analyzing ICFG 16_peterson.i [2020-10-21 22:43:21,379 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 22:43:21,380 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-21 22:43:21,387 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-21 22:43:21,388 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 22:43:21,418 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:43:21,419 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:43:21,419 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:43:21,420 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:43:21,420 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:43:21,420 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:43:21,421 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:43:21,421 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:43:21,421 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:43:21,422 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:43:21,422 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:43:21,422 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:43:21,422 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:43:21,423 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:43:21,423 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:43:21,424 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:43:21,427 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:43:21,428 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:43:21,428 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:43:21,428 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:43:21,429 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:43:21,429 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:43:21,429 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:43:21,430 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:43:21,437 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 22:43:21,457 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-21 22:43:21,479 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:43:21,479 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:43:21,480 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 22:43:21,480 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:43:21,480 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:43:21,480 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:43:21,480 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:43:21,480 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:43:21,493 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 22:43:21,494 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 69 transitions, 143 flow [2020-10-21 22:43:21,497 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 69 transitions, 143 flow [2020-10-21 22:43:21,499 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 65 places, 69 transitions, 143 flow [2020-10-21 22:43:21,543 INFO L129 PetriNetUnfolder]: 8/68 cut-off events. [2020-10-21 22:43:21,543 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 22:43:21,549 INFO L80 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 68 events. 8/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 73 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2020-10-21 22:43:21,552 INFO L116 LiptonReduction]: Number of co-enabled transitions 1302 [2020-10-21 22:43:22,655 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2020-10-21 22:43:22,748 INFO L131 LiptonReduction]: Checked pairs total: 3205 [2020-10-21 22:43:22,749 INFO L133 LiptonReduction]: Total number of compositions: 60 [2020-10-21 22:43:22,756 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 26 transitions, 57 flow [2020-10-21 22:43:22,772 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 102 states. [2020-10-21 22:43:22,775 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states. [2020-10-21 22:43:22,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 22:43:22,782 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:43:22,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:43:22,784 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:43:22,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:43:22,790 INFO L82 PathProgramCache]: Analyzing trace with hash -844318828, now seen corresponding path program 1 times [2020-10-21 22:43:22,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:43:22,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829299367] [2020-10-21 22:43:22,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:43:22,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:43:23,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:43:23,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829299367] [2020-10-21 22:43:23,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:43:23,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:43:23,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310832091] [2020-10-21 22:43:23,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:43:23,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:43:23,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:43:23,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:43:23,044 INFO L87 Difference]: Start difference. First operand 102 states. Second operand 3 states. [2020-10-21 22:43:23,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:43:23,090 INFO L93 Difference]: Finished difference Result 107 states and 199 transitions. [2020-10-21 22:43:23,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:43:23,091 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-21 22:43:23,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:43:23,104 INFO L225 Difference]: With dead ends: 107 [2020-10-21 22:43:23,104 INFO L226 Difference]: Without dead ends: 74 [2020-10-21 22:43:23,106 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:43:23,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-21 22:43:23,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 70. [2020-10-21 22:43:23,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-21 22:43:23,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 132 transitions. [2020-10-21 22:43:23,153 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 132 transitions. Word has length 8 [2020-10-21 22:43:23,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:43:23,153 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 132 transitions. [2020-10-21 22:43:23,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:43:23,154 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 132 transitions. [2020-10-21 22:43:23,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 22:43:23,155 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:43:23,155 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:43:23,155 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 22:43:23,156 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:43:23,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:43:23,156 INFO L82 PathProgramCache]: Analyzing trace with hash -2037491638, now seen corresponding path program 1 times [2020-10-21 22:43:23,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:43:23,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382382455] [2020-10-21 22:43:23,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:43:23,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:43:23,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:43:23,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382382455] [2020-10-21 22:43:23,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:43:23,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:43:23,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80256929] [2020-10-21 22:43:23,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:43:23,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:43:23,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:43:23,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:43:23,213 INFO L87 Difference]: Start difference. First operand 70 states and 132 transitions. Second operand 3 states. [2020-10-21 22:43:23,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:43:23,239 INFO L93 Difference]: Finished difference Result 64 states and 115 transitions. [2020-10-21 22:43:23,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:43:23,239 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-21 22:43:23,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:43:23,241 INFO L225 Difference]: With dead ends: 64 [2020-10-21 22:43:23,241 INFO L226 Difference]: Without dead ends: 51 [2020-10-21 22:43:23,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:43:23,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-21 22:43:23,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-10-21 22:43:23,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-21 22:43:23,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 91 transitions. [2020-10-21 22:43:23,249 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 91 transitions. Word has length 8 [2020-10-21 22:43:23,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:43:23,250 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 91 transitions. [2020-10-21 22:43:23,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:43:23,250 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 91 transitions. [2020-10-21 22:43:23,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 22:43:23,251 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:43:23,251 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:43:23,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 22:43:23,252 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:43:23,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:43:23,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1382211162, now seen corresponding path program 1 times [2020-10-21 22:43:23,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:43:23,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637151414] [2020-10-21 22:43:23,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:43:23,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:43:23,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:43:23,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637151414] [2020-10-21 22:43:23,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:43:23,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-21 22:43:23,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191983995] [2020-10-21 22:43:23,373 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 22:43:23,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:43:23,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 22:43:23,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-21 22:43:23,374 INFO L87 Difference]: Start difference. First operand 51 states and 91 transitions. Second operand 6 states. [2020-10-21 22:43:23,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:43:23,464 INFO L93 Difference]: Finished difference Result 72 states and 133 transitions. [2020-10-21 22:43:23,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-21 22:43:23,465 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-21 22:43:23,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:43:23,466 INFO L225 Difference]: With dead ends: 72 [2020-10-21 22:43:23,466 INFO L226 Difference]: Without dead ends: 45 [2020-10-21 22:43:23,466 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-21 22:43:23,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-21 22:43:23,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-10-21 22:43:23,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-21 22:43:23,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 70 transitions. [2020-10-21 22:43:23,473 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 70 transitions. Word has length 13 [2020-10-21 22:43:23,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:43:23,473 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 70 transitions. [2020-10-21 22:43:23,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 22:43:23,473 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 70 transitions. [2020-10-21 22:43:23,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 22:43:23,474 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:43:23,474 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:43:23,475 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 22:43:23,475 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:43:23,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:43:23,475 INFO L82 PathProgramCache]: Analyzing trace with hash -324045408, now seen corresponding path program 2 times [2020-10-21 22:43:23,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:43:23,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457645300] [2020-10-21 22:43:23,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:43:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:43:23,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:43:23,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457645300] [2020-10-21 22:43:23,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:43:23,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-21 22:43:23,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720570935] [2020-10-21 22:43:23,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 22:43:23,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:43:23,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 22:43:23,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-21 22:43:23,609 INFO L87 Difference]: Start difference. First operand 45 states and 70 transitions. Second operand 6 states. [2020-10-21 22:43:23,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:43:23,670 INFO L93 Difference]: Finished difference Result 28 states and 46 transitions. [2020-10-21 22:43:23,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 22:43:23,670 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-21 22:43:23,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:43:23,670 INFO L225 Difference]: With dead ends: 28 [2020-10-21 22:43:23,670 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 22:43:23,671 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-21 22:43:23,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 22:43:23,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 22:43:23,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 22:43:23,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 22:43:23,672 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-10-21 22:43:23,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:43:23,672 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 22:43:23,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 22:43:23,674 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 22:43:23,674 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 22:43:23,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 22:43:23,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 10:43:23 BasicIcfg [2020-10-21 22:43:23,679 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 22:43:23,682 INFO L168 Benchmark]: Toolchain (without parser) took 3602.98 ms. Allocated memory was 141.0 MB in the beginning and 246.4 MB in the end (delta: 105.4 MB). Free memory was 102.3 MB in the beginning and 156.3 MB in the end (delta: -54.0 MB). Peak memory consumption was 51.3 MB. Max. memory is 7.1 GB. [2020-10-21 22:43:23,684 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-10-21 22:43:23,687 INFO L168 Benchmark]: CACSL2BoogieTranslator took 796.02 ms. Allocated memory was 141.0 MB in the beginning and 203.4 MB in the end (delta: 62.4 MB). Free memory was 101.3 MB in the beginning and 158.9 MB in the end (delta: -57.6 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-10-21 22:43:23,689 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.92 ms. Allocated memory is still 203.4 MB. Free memory was 158.9 MB in the beginning and 156.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-21 22:43:23,696 INFO L168 Benchmark]: Boogie Preprocessor took 29.78 ms. Allocated memory is still 203.4 MB. Free memory was 156.3 MB in the beginning and 155.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-21 22:43:23,696 INFO L168 Benchmark]: RCFGBuilder took 396.75 ms. Allocated memory is still 203.4 MB. Free memory was 155.0 MB in the beginning and 133.0 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-10-21 22:43:23,697 INFO L168 Benchmark]: TraceAbstraction took 2320.17 ms. Allocated memory was 203.4 MB in the beginning and 246.4 MB in the end (delta: 43.0 MB). Free memory was 132.3 MB in the beginning and 156.3 MB in the end (delta: -24.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. [2020-10-21 22:43:23,705 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 796.02 ms. Allocated memory was 141.0 MB in the beginning and 203.4 MB in the end (delta: 62.4 MB). Free memory was 101.3 MB in the beginning and 158.9 MB in the end (delta: -57.6 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.92 ms. Allocated memory is still 203.4 MB. Free memory was 158.9 MB in the beginning and 156.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.78 ms. Allocated memory is still 203.4 MB. Free memory was 156.3 MB in the beginning and 155.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 396.75 ms. Allocated memory is still 203.4 MB. Free memory was 155.0 MB in the beginning and 133.0 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2320.17 ms. Allocated memory was 203.4 MB in the beginning and 246.4 MB in the end (delta: 43.0 MB). Free memory was 132.3 MB in the beginning and 156.3 MB in the end (delta: -24.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 734 VarBasedMoverChecksPositive, 31 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 76 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.2s, 65 PlacesBefore, 25 PlacesAfterwards, 69 TransitionsBefore, 26 TransitionsAfterwards, 1302 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 3 ChoiceCompositions, 60 TotalNumberOfCompositions, 3205 MoverChecksTotal - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: 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 2 procedures, 62 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: 106 SDtfs, 86 SDslu, 111 SDs, 0 SdLazy, 89 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 1110 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...