/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-atomic/dekker.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 22:21:52,944 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 22:21:52,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 22:21:52,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 22:21:52,982 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 22:21:52,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 22:21:52,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 22:21:52,998 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 22:21:53,001 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 22:21:53,004 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 22:21:53,005 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 22:21:53,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 22:21:53,007 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 22:21:53,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 22:21:53,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 22:21:53,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 22:21:53,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 22:21:53,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 22:21:53,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 22:21:53,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 22:21:53,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 22:21:53,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 22:21:53,029 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 22:21:53,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 22:21:53,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 22:21:53,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 22:21:53,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 22:21:53,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 22:21:53,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 22:21:53,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 22:21:53,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 22:21:53,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 22:21:53,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 22:21:53,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 22:21:53,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 22:21:53,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 22:21:53,040 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-05 22:21:53,062 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 22:21:53,063 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 22:21:53,064 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 22:21:53,064 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 22:21:53,064 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 22:21:53,065 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 22:21:53,065 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 22:21:53,065 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 22:21:53,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 22:21:53,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 22:21:53,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 22:21:53,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 22:21:53,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 22:21:53,066 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 22:21:53,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 22:21:53,066 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 22:21:53,067 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 22:21:53,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 22:21:53,067 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 22:21:53,067 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 22:21:53,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 22:21:53,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 22:21:53,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 22:21:53,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-05 22:21:53,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 22:21:53,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 22:21:53,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 22:21:53,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 22:21:53,069 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-05 22:21:53,069 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-05 22:21:53,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 22:21:53,377 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 22:21:53,383 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 22:21:53,384 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 22:21:53,385 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 22:21:53,385 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/dekker.i [2020-10-05 22:21:53,460 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58d51fcc3/ddb2637c149b479b89aaabf94ba0f8c8/FLAG490053db8 [2020-10-05 22:21:54,047 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 22:21:54,048 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i [2020-10-05 22:21:54,064 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58d51fcc3/ddb2637c149b479b89aaabf94ba0f8c8/FLAG490053db8 [2020-10-05 22:21:54,343 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58d51fcc3/ddb2637c149b479b89aaabf94ba0f8c8 [2020-10-05 22:21:54,351 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 22:21:54,353 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 22:21:54,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 22:21:54,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 22:21:54,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 22:21:54,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:21:54" (1/1) ... [2020-10-05 22:21:54,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@733fe262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:21:54, skipping insertion in model container [2020-10-05 22:21:54,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:21:54" (1/1) ... [2020-10-05 22:21:54,372 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 22:21:54,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 22:21:54,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:21:54,883 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 22:21:54,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:21:55,007 INFO L208 MainTranslator]: Completed translation [2020-10-05 22:21:55,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:21:55 WrapperNode [2020-10-05 22:21:55,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 22:21:55,010 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 22:21:55,010 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 22:21:55,010 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 22:21:55,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:21:55" (1/1) ... [2020-10-05 22:21:55,040 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:21:55" (1/1) ... [2020-10-05 22:21:55,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 22:21:55,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 22:21:55,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 22:21:55,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 22:21:55,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:21:55" (1/1) ... [2020-10-05 22:21:55,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:21:55" (1/1) ... [2020-10-05 22:21:55,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:21:55" (1/1) ... [2020-10-05 22:21:55,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:21:55" (1/1) ... [2020-10-05 22:21:55,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:21:55" (1/1) ... [2020-10-05 22:21:55,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:21:55" (1/1) ... [2020-10-05 22:21:55,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:21:55" (1/1) ... [2020-10-05 22:21:55,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 22:21:55,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 22:21:55,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 22:21:55,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 22:21:55,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:21:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 22:21:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-05 22:21:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-10-05 22:21:55,161 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-10-05 22:21:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-05 22:21:55,161 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-05 22:21:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 22:21:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 22:21:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 22:21:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 22:21:55,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 22:21:55,164 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 22:21:55,514 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 22:21:55,514 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-05 22:21:55,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:21:55 BoogieIcfgContainer [2020-10-05 22:21:55,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 22:21:55,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 22:21:55,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 22:21:55,522 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 22:21:55,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 10:21:54" (1/3) ... [2020-10-05 22:21:55,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455c1efa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:21:55, skipping insertion in model container [2020-10-05 22:21:55,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:21:55" (2/3) ... [2020-10-05 22:21:55,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455c1efa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:21:55, skipping insertion in model container [2020-10-05 22:21:55,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:21:55" (3/3) ... [2020-10-05 22:21:55,526 INFO L109 eAbstractionObserver]: Analyzing ICFG dekker.i [2020-10-05 22:21:55,535 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 22:21:55,535 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-05 22:21:55,543 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-05 22:21:55,544 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 22:21:55,577 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:21:55,578 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:21:55,578 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:21:55,578 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:21:55,580 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:21:55,580 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:21:55,581 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:21:55,581 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:21:55,582 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:21:55,582 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:21:55,583 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:21:55,583 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:21:55,587 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:21:55,588 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:21:55,588 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:21:55,588 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:21:55,599 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:21:55,599 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:21:55,599 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:21:55,600 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:21:55,664 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-05 22:21:55,683 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 22:21:55,683 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 22:21:55,683 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-05 22:21:55,683 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 22:21:55,684 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 22:21:55,684 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 22:21:55,684 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 22:21:55,684 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 22:21:55,699 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 82 transitions, 186 flow [2020-10-05 22:21:55,701 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 74 places, 82 transitions, 186 flow [2020-10-05 22:21:55,746 INFO L129 PetriNetUnfolder]: 14/82 cut-off events. [2020-10-05 22:21:55,746 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-05 22:21:55,753 INFO L80 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 82 events. 14/82 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 112 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 53. Up to 3 conditions per place. [2020-10-05 22:21:55,757 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 74 places, 82 transitions, 186 flow [2020-10-05 22:21:55,782 INFO L129 PetriNetUnfolder]: 14/82 cut-off events. [2020-10-05 22:21:55,782 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-05 22:21:55,784 INFO L80 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 82 events. 14/82 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 112 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 53. Up to 3 conditions per place. [2020-10-05 22:21:55,786 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1428 [2020-10-05 22:21:55,787 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-10-05 22:21:56,753 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2020-10-05 22:21:57,104 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2020-10-05 22:21:57,193 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3385 [2020-10-05 22:21:57,194 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2020-10-05 22:21:57,197 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 44 transitions, 110 flow [2020-10-05 22:21:57,224 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 335 states. [2020-10-05 22:21:57,226 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states. [2020-10-05 22:21:57,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-05 22:21:57,233 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:21:57,234 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-05 22:21:57,234 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:21:57,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:21:57,240 INFO L82 PathProgramCache]: Analyzing trace with hash 328460490, now seen corresponding path program 1 times [2020-10-05 22:21:57,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:21:57,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300663082] [2020-10-05 22:21:57,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:21:57,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:21:57,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:21:57,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300663082] [2020-10-05 22:21:57,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:21:57,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:21:57,401 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833911716] [2020-10-05 22:21:57,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-05 22:21:57,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:21:57,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-05 22:21:57,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-05 22:21:57,424 INFO L87 Difference]: Start difference. First operand 335 states. Second operand 2 states. [2020-10-05 22:21:57,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:21:57,460 INFO L93 Difference]: Finished difference Result 335 states and 891 transitions. [2020-10-05 22:21:57,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-05 22:21:57,462 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2020-10-05 22:21:57,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:21:57,478 INFO L225 Difference]: With dead ends: 335 [2020-10-05 22:21:57,478 INFO L226 Difference]: Without dead ends: 296 [2020-10-05 22:21:57,480 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-05 22:21:57,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-10-05 22:21:57,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2020-10-05 22:21:57,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-10-05 22:21:57,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 806 transitions. [2020-10-05 22:21:57,550 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 806 transitions. Word has length 5 [2020-10-05 22:21:57,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:21:57,552 INFO L479 AbstractCegarLoop]: Abstraction has 296 states and 806 transitions. [2020-10-05 22:21:57,552 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-05 22:21:57,552 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 806 transitions. [2020-10-05 22:21:57,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-05 22:21:57,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:21:57,553 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-05 22:21:57,553 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 22:21:57,554 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:21:57,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:21:57,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1592301590, now seen corresponding path program 1 times [2020-10-05 22:21:57,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:21:57,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946247861] [2020-10-05 22:21:57,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:21:57,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:21:57,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:21:57,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946247861] [2020-10-05 22:21:57,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:21:57,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:21:57,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916994993] [2020-10-05 22:21:57,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:21:57,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:21:57,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:21:57,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:21:57,663 INFO L87 Difference]: Start difference. First operand 296 states and 806 transitions. Second operand 3 states. [2020-10-05 22:21:57,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:21:57,695 INFO L93 Difference]: Finished difference Result 313 states and 813 transitions. [2020-10-05 22:21:57,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:21:57,696 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-05 22:21:57,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:21:57,699 INFO L225 Difference]: With dead ends: 313 [2020-10-05 22:21:57,700 INFO L226 Difference]: Without dead ends: 250 [2020-10-05 22:21:57,701 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:21:57,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-10-05 22:21:57,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 232. [2020-10-05 22:21:57,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-10-05 22:21:57,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 621 transitions. [2020-10-05 22:21:57,723 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 621 transitions. Word has length 6 [2020-10-05 22:21:57,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:21:57,723 INFO L479 AbstractCegarLoop]: Abstraction has 232 states and 621 transitions. [2020-10-05 22:21:57,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:21:57,724 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 621 transitions. [2020-10-05 22:21:57,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-05 22:21:57,725 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:21:57,725 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:21:57,726 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 22:21:57,726 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:21:57,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:21:57,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1271601265, now seen corresponding path program 1 times [2020-10-05 22:21:57,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:21:57,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191186814] [2020-10-05 22:21:57,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:21:57,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:21:57,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:21:57,775 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191186814] [2020-10-05 22:21:57,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:21:57,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:21:57,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985174568] [2020-10-05 22:21:57,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:21:57,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:21:57,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:21:57,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:21:57,777 INFO L87 Difference]: Start difference. First operand 232 states and 621 transitions. Second operand 3 states. [2020-10-05 22:21:57,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:21:57,802 INFO L93 Difference]: Finished difference Result 225 states and 583 transitions. [2020-10-05 22:21:57,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:21:57,802 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-05 22:21:57,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:21:57,805 INFO L225 Difference]: With dead ends: 225 [2020-10-05 22:21:57,805 INFO L226 Difference]: Without dead ends: 156 [2020-10-05 22:21:57,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:21:57,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-10-05 22:21:57,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2020-10-05 22:21:57,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-10-05 22:21:57,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 408 transitions. [2020-10-05 22:21:57,821 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 408 transitions. Word has length 8 [2020-10-05 22:21:57,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:21:57,822 INFO L479 AbstractCegarLoop]: Abstraction has 156 states and 408 transitions. [2020-10-05 22:21:57,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:21:57,822 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 408 transitions. [2020-10-05 22:21:57,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 22:21:57,824 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:21:57,824 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:21:57,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 22:21:57,824 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:21:57,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:21:57,825 INFO L82 PathProgramCache]: Analyzing trace with hash 1709095427, now seen corresponding path program 1 times [2020-10-05 22:21:57,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:21:57,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480784564] [2020-10-05 22:21:57,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:21:57,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:21:57,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:21:57,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480784564] [2020-10-05 22:21:57,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:21:57,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:21:57,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479346571] [2020-10-05 22:21:57,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:21:57,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:21:57,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:21:57,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:21:57,868 INFO L87 Difference]: Start difference. First operand 156 states and 408 transitions. Second operand 3 states. [2020-10-05 22:21:57,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:21:57,891 INFO L93 Difference]: Finished difference Result 156 states and 400 transitions. [2020-10-05 22:21:57,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:21:57,892 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-05 22:21:57,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:21:57,893 INFO L225 Difference]: With dead ends: 156 [2020-10-05 22:21:57,893 INFO L226 Difference]: Without dead ends: 132 [2020-10-05 22:21:57,894 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:21:57,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-05 22:21:57,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-10-05 22:21:57,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-05 22:21:57,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 334 transitions. [2020-10-05 22:21:57,902 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 334 transitions. Word has length 11 [2020-10-05 22:21:57,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:21:57,902 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 334 transitions. [2020-10-05 22:21:57,902 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:21:57,903 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 334 transitions. [2020-10-05 22:21:57,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 22:21:57,904 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:21:57,904 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:21:57,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 22:21:57,905 INFO L427 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:21:57,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:21:57,906 INFO L82 PathProgramCache]: Analyzing trace with hash 662539332, now seen corresponding path program 1 times [2020-10-05 22:21:57,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:21:57,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126994337] [2020-10-05 22:21:57,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:21:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:21:57,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:21:57,940 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126994337] [2020-10-05 22:21:57,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:21:57,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:21:57,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587498585] [2020-10-05 22:21:57,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:21:57,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:21:57,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:21:57,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:21:57,942 INFO L87 Difference]: Start difference. First operand 132 states and 334 transitions. Second operand 3 states. [2020-10-05 22:21:57,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:21:57,955 INFO L93 Difference]: Finished difference Result 82 states and 245 transitions. [2020-10-05 22:21:57,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:21:57,956 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-05 22:21:57,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:21:57,957 INFO L225 Difference]: With dead ends: 82 [2020-10-05 22:21:57,957 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 22:21:57,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:21:57,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 22:21:57,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 22:21:57,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 22:21:57,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 22:21:57,958 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-10-05 22:21:57,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:21:57,959 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 22:21:57,959 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:21:57,959 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 22:21:57,959 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 22:21:57,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 22:21:57,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 10:21:57 BasicIcfg [2020-10-05 22:21:57,963 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 22:21:57,966 INFO L168 Benchmark]: Toolchain (without parser) took 3612.33 ms. Allocated memory was 140.5 MB in the beginning and 247.5 MB in the end (delta: 107.0 MB). Free memory was 102.0 MB in the beginning and 144.0 MB in the end (delta: -41.9 MB). Peak memory consumption was 65.0 MB. Max. memory is 7.1 GB. [2020-10-05 22:21:57,966 INFO L168 Benchmark]: CDTParser took 1.44 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-05 22:21:57,968 INFO L168 Benchmark]: CACSL2BoogieTranslator took 655.26 ms. Allocated memory was 140.5 MB in the beginning and 202.4 MB in the end (delta: 61.9 MB). Free memory was 101.8 MB in the beginning and 161.6 MB in the end (delta: -59.8 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-10-05 22:21:57,969 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.01 ms. Allocated memory is still 202.4 MB. Free memory was 161.6 MB in the beginning and 159.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-05 22:21:57,969 INFO L168 Benchmark]: Boogie Preprocessor took 32.49 ms. Allocated memory is still 202.4 MB. Free memory was 159.7 MB in the beginning and 158.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-05 22:21:57,970 INFO L168 Benchmark]: RCFGBuilder took 418.58 ms. Allocated memory is still 202.4 MB. Free memory was 157.8 MB in the beginning and 135.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-10-05 22:21:57,971 INFO L168 Benchmark]: TraceAbstraction took 2445.54 ms. Allocated memory was 202.4 MB in the beginning and 247.5 MB in the end (delta: 45.1 MB). Free memory was 135.8 MB in the beginning and 144.0 MB in the end (delta: -8.1 MB). Peak memory consumption was 36.9 MB. Max. memory is 7.1 GB. [2020-10-05 22:21:57,976 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.44 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 655.26 ms. Allocated memory was 140.5 MB in the beginning and 202.4 MB in the end (delta: 61.9 MB). Free memory was 101.8 MB in the beginning and 161.6 MB in the end (delta: -59.8 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 55.01 ms. Allocated memory is still 202.4 MB. Free memory was 161.6 MB in the beginning and 159.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.49 ms. Allocated memory is still 202.4 MB. Free memory was 159.7 MB in the beginning and 158.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 418.58 ms. Allocated memory is still 202.4 MB. Free memory was 157.8 MB in the beginning and 135.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2445.54 ms. Allocated memory was 202.4 MB in the beginning and 247.5 MB in the end (delta: 45.1 MB). Free memory was 135.8 MB in the beginning and 144.0 MB in the end (delta: -8.1 MB). Peak memory consumption was 36.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 74 ProgramPointsBefore, 40 ProgramPointsAfterwards, 82 TransitionsBefore, 44 TransitionsAfterwards, 1428 CoEnabledTransitionPairs, 7 FixpointIterations, 26 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 5 ConcurrentYvCompositions, 4 ChoiceCompositions, 593 VarBasedMoverChecksPositive, 44 VarBasedMoverChecksNegative, 21 SemBasedMoverChecksPositive, 32 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 3385 CheckedPairsTotal, 47 TotalNumberOfCompositions - PositiveResult [Line: 705]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 690]: 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, 68 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 197 SDtfs, 79 SDslu, 68 SDs, 0 SdLazy, 28 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=335occurred 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, 18 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 514 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...