/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf -i ../../../trunk/examples/svcomp/pthread-atomic/dekker.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-09 14:50:23,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-09 14:50:23,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-09 14:50:23,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-09 14:50:23,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-09 14:50:23,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-09 14:50:23,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-09 14:50:23,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-09 14:50:23,426 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-09 14:50:23,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-09 14:50:23,434 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-09 14:50:23,435 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-09 14:50:23,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-09 14:50:23,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-09 14:50:23,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-09 14:50:23,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-09 14:50:23,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-09 14:50:23,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-09 14:50:23,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-09 14:50:23,465 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-09 14:50:23,468 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-09 14:50:23,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-09 14:50:23,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-09 14:50:23,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-09 14:50:23,487 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-09 14:50:23,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-09 14:50:23,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-09 14:50:23,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-09 14:50:23,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-09 14:50:23,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-09 14:50:23,500 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-09 14:50:23,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-09 14:50:23,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-09 14:50:23,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-09 14:50:23,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-09 14:50:23,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-09 14:50:23,508 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-09 14:50:23,567 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-09 14:50:23,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-09 14:50:23,572 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-09 14:50:23,573 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-09 14:50:23,573 INFO L138 SettingsManager]: * Use SBE=true [2020-10-09 14:50:23,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-09 14:50:23,574 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-09 14:50:23,574 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-09 14:50:23,574 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-09 14:50:23,574 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-09 14:50:23,576 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-09 14:50:23,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-09 14:50:23,577 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-09 14:50:23,578 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-09 14:50:23,578 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-09 14:50:23,578 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-09 14:50:23,578 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-09 14:50:23,579 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-09 14:50:23,579 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-09 14:50:23,579 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-09 14:50:23,579 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-09 14:50:23,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-09 14:50:23,580 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-09 14:50:23,580 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-09 14:50:23,580 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-09 14:50:23,580 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-10-09 14:50:23,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-09 14:50:23,581 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-09 14:50:23,581 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-09 14:50:23,581 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-09 14:50:24,022 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-09 14:50:24,045 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-09 14:50:24,051 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-09 14:50:24,054 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-09 14:50:24,055 INFO L275 PluginConnector]: CDTParser initialized [2020-10-09 14:50:24,056 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/dekker.i [2020-10-09 14:50:24,134 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03d1ee867/69603da4e90149f9b1d8b3c3d3511366/FLAG7bd3a3851 [2020-10-09 14:50:24,843 INFO L306 CDTParser]: Found 1 translation units. [2020-10-09 14:50:24,844 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i [2020-10-09 14:50:24,861 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03d1ee867/69603da4e90149f9b1d8b3c3d3511366/FLAG7bd3a3851 [2020-10-09 14:50:24,997 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03d1ee867/69603da4e90149f9b1d8b3c3d3511366 [2020-10-09 14:50:25,009 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-09 14:50:25,011 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-09 14:50:25,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-09 14:50:25,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-09 14:50:25,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-09 14:50:25,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 02:50:24" (1/1) ... [2020-10-09 14:50:25,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c7cb6c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:50:25, skipping insertion in model container [2020-10-09 14:50:25,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 02:50:24" (1/1) ... [2020-10-09 14:50:25,032 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-09 14:50:25,077 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-09 14:50:25,500 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 14:50:25,520 INFO L203 MainTranslator]: Completed pre-run [2020-10-09 14:50:25,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 14:50:25,645 INFO L208 MainTranslator]: Completed translation [2020-10-09 14:50:25,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:50:25 WrapperNode [2020-10-09 14:50:25,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-09 14:50:25,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-09 14:50:25,648 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-09 14:50:25,648 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-09 14:50:25,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:50:25" (1/1) ... [2020-10-09 14:50:25,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:50:25" (1/1) ... [2020-10-09 14:50:25,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-09 14:50:25,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-09 14:50:25,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-09 14:50:25,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-09 14:50:25,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:50:25" (1/1) ... [2020-10-09 14:50:25,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:50:25" (1/1) ... [2020-10-09 14:50:25,710 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:50:25" (1/1) ... [2020-10-09 14:50:25,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:50:25" (1/1) ... [2020-10-09 14:50:25,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:50:25" (1/1) ... [2020-10-09 14:50:25,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:50:25" (1/1) ... [2020-10-09 14:50:25,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:50:25" (1/1) ... [2020-10-09 14:50:25,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-09 14:50:25,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-09 14:50:25,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-09 14:50:25,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-09 14:50:25,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:50:25" (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 [2020-10-09 14:50:25,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-09 14:50:25,808 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-10-09 14:50:25,808 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-10-09 14:50:25,808 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-09 14:50:25,808 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-09 14:50:25,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-09 14:50:25,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-09 14:50:25,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-09 14:50:25,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-09 14:50:25,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-09 14:50:25,811 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-09 14:50:26,154 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-09 14:50:26,154 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-09 14:50:26,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 02:50:26 BoogieIcfgContainer [2020-10-09 14:50:26,156 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-09 14:50:26,158 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-09 14:50:26,158 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-09 14:50:26,162 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-09 14:50:26,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.10 02:50:24" (1/3) ... [2020-10-09 14:50:26,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2afa1a2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 02:50:26, skipping insertion in model container [2020-10-09 14:50:26,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 02:50:25" (2/3) ... [2020-10-09 14:50:26,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2afa1a2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 02:50:26, skipping insertion in model container [2020-10-09 14:50:26,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 02:50:26" (3/3) ... [2020-10-09 14:50:26,165 INFO L111 eAbstractionObserver]: Analyzing ICFG dekker.i [2020-10-09 14:50:26,177 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-09 14:50:26,184 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-09 14:50:26,185 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-09 14:50:26,217 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:50:26,218 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:50:26,218 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:50:26,218 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:50:26,220 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:50:26,220 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:50:26,221 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:50:26,221 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:50:26,221 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:50:26,221 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:50:26,222 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:50:26,222 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:50:26,226 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:50:26,227 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:50:26,227 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:50:26,227 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:50:26,233 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:50:26,233 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:50:26,233 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:50:26,234 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 14:50:26,259 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-09 14:50:26,285 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 14:50:26,285 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-09 14:50:26,286 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 14:50:26,286 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 14:50:26,286 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 14:50:26,286 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 14:50:26,286 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 14:50:26,286 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 14:50:26,301 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 74 places, 82 transitions, 186 flow [2020-10-09 14:50:26,344 INFO L129 PetriNetUnfolder]: 14/82 cut-off events. [2020-10-09 14:50:26,345 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-09 14:50:26,351 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. [2020-10-09 14:50:26,351 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 82 transitions, 186 flow [2020-10-09 14:50:26,358 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 70 transitions, 152 flow [2020-10-09 14:50:26,371 INFO L129 PetriNetUnfolder]: 7/41 cut-off events. [2020-10-09 14:50:26,371 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 14:50:26,372 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 14:50:26,373 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 14:50:26,373 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 14:50:26,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 14:50:26,379 INFO L82 PathProgramCache]: Analyzing trace with hash 156809373, now seen corresponding path program 1 times [2020-10-09 14:50:26,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 14:50:26,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [78089329] [2020-10-09 14:50:26,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-09 14:50:26,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 14:50:26,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-09 14:50:26,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 14:50:26,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:50:26,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 14:50:26,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:50:26,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [78089329] [2020-10-09 14:50:26,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 14:50:26,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-09 14:50:26,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062781687] [2020-10-09 14:50:26,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-09 14:50:26,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 14:50:26,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-09 14:50:26,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-09 14:50:26,550 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 82 [2020-10-09 14:50:26,552 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 70 transitions, 152 flow. Second operand 2 states. [2020-10-09 14:50:26,552 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 14:50:26,553 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 82 [2020-10-09 14:50:26,554 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 14:50:26,587 INFO L129 PetriNetUnfolder]: 6/65 cut-off events. [2020-10-09 14:50:26,588 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-09 14:50:26,589 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 6/65 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 98 event pairs, 0 based on Foata normal form. 7/63 useless extension candidates. Maximal degree in co-relation 71. Up to 3 conditions per place. [2020-10-09 14:50:26,591 INFO L132 encePairwiseOnDemand]: 75/82 looper letters, 0 selfloop transitions, 0 changer transitions 1/63 dead transitions. [2020-10-09 14:50:26,591 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 63 transitions, 138 flow [2020-10-09 14:50:26,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-09 14:50:26,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-09 14:50:26,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 157 transitions. [2020-10-09 14:50:26,604 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9573170731707317 [2020-10-09 14:50:26,605 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 157 transitions. [2020-10-09 14:50:26,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 157 transitions. [2020-10-09 14:50:26,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 14:50:26,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 157 transitions. [2020-10-09 14:50:26,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-10-09 14:50:26,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 3 states. [2020-10-09 14:50:26,617 INFO L81 ComplementDD]: Finished complementDD. Result 3 states. [2020-10-09 14:50:26,619 INFO L185 Difference]: Start difference. First operand has 63 places, 70 transitions, 152 flow. Second operand 2 states and 157 transitions. [2020-10-09 14:50:26,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 63 transitions, 138 flow [2020-10-09 14:50:26,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 63 transitions, 130 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-09 14:50:26,629 INFO L241 Difference]: Finished difference. Result has 60 places, 62 transitions, 128 flow [2020-10-09 14:50:26,632 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=128, PETRI_PLACES=60, PETRI_TRANSITIONS=62} [2020-10-09 14:50:26,633 INFO L341 CegarLoopForPetriNet]: 63 programPoint places, -3 predicate places. [2020-10-09 14:50:26,634 INFO L481 AbstractCegarLoop]: Abstraction has has 60 places, 62 transitions, 128 flow [2020-10-09 14:50:26,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-09 14:50:26,634 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 14:50:26,634 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 14:50:26,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-09 14:50:26,848 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 14:50:26,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 14:50:26,849 INFO L82 PathProgramCache]: Analyzing trace with hash 156839164, now seen corresponding path program 1 times [2020-10-09 14:50:26,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 14:50:26,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1428448772] [2020-10-09 14:50:26,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-09 14:50:26,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 14:50:26,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-09 14:50:26,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 14:50:26,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:50:26,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 14:50:26,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:50:26,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1428448772] [2020-10-09 14:50:26,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 14:50:26,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-09 14:50:26,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595681175] [2020-10-09 14:50:26,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 14:50:26,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 14:50:26,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 14:50:26,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 14:50:27,015 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 82 [2020-10-09 14:50:27,016 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 62 transitions, 128 flow. Second operand 3 states. [2020-10-09 14:50:27,016 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 14:50:27,016 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 82 [2020-10-09 14:50:27,016 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 14:50:27,081 INFO L129 PetriNetUnfolder]: 13/120 cut-off events. [2020-10-09 14:50:27,082 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 14:50:27,083 INFO L80 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 120 events. 13/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 405 event pairs, 3 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 148. Up to 17 conditions per place. [2020-10-09 14:50:27,084 INFO L132 encePairwiseOnDemand]: 75/82 looper letters, 5 selfloop transitions, 5 changer transitions 0/65 dead transitions. [2020-10-09 14:50:27,084 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 65 transitions, 154 flow [2020-10-09 14:50:27,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 14:50:27,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-09 14:50:27,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 216 transitions. [2020-10-09 14:50:27,088 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8780487804878049 [2020-10-09 14:50:27,088 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 216 transitions. [2020-10-09 14:50:27,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 216 transitions. [2020-10-09 14:50:27,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 14:50:27,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 216 transitions. [2020-10-09 14:50:27,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-09 14:50:27,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-09 14:50:27,093 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-09 14:50:27,094 INFO L185 Difference]: Start difference. First operand has 60 places, 62 transitions, 128 flow. Second operand 3 states and 216 transitions. [2020-10-09 14:50:27,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 65 transitions, 154 flow [2020-10-09 14:50:27,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 65 transitions, 154 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-09 14:50:27,102 INFO L241 Difference]: Finished difference. Result has 63 places, 65 transitions, 164 flow [2020-10-09 14:50:27,103 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=63, PETRI_TRANSITIONS=65} [2020-10-09 14:50:27,104 INFO L341 CegarLoopForPetriNet]: 63 programPoint places, 0 predicate places. [2020-10-09 14:50:27,104 INFO L481 AbstractCegarLoop]: Abstraction has has 63 places, 65 transitions, 164 flow [2020-10-09 14:50:27,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 14:50:27,104 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 14:50:27,105 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 14:50:27,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-09 14:50:27,321 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 14:50:27,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 14:50:27,322 INFO L82 PathProgramCache]: Analyzing trace with hash -941004146, now seen corresponding path program 1 times [2020-10-09 14:50:27,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 14:50:27,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [851530583] [2020-10-09 14:50:27,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-09 14:50:27,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 14:50:27,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-09 14:50:27,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 14:50:27,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:50:27,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 14:50:27,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:50:27,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [851530583] [2020-10-09 14:50:27,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 14:50:27,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-09 14:50:27,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482306891] [2020-10-09 14:50:27,431 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 14:50:27,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 14:50:27,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 14:50:27,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 14:50:27,489 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 82 [2020-10-09 14:50:27,490 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 65 transitions, 164 flow. Second operand 3 states. [2020-10-09 14:50:27,490 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 14:50:27,490 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 82 [2020-10-09 14:50:27,490 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 14:50:27,562 INFO L129 PetriNetUnfolder]: 8/106 cut-off events. [2020-10-09 14:50:27,564 INFO L130 PetriNetUnfolder]: For 16/22 co-relation queries the response was YES. [2020-10-09 14:50:27,566 INFO L80 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 106 events. 8/106 cut-off events. For 16/22 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 323 event pairs, 2 based on Foata normal form. 6/104 useless extension candidates. Maximal degree in co-relation 152. Up to 11 conditions per place. [2020-10-09 14:50:27,570 INFO L132 encePairwiseOnDemand]: 78/82 looper letters, 6 selfloop transitions, 2 changer transitions 0/63 dead transitions. [2020-10-09 14:50:27,571 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 63 transitions, 168 flow [2020-10-09 14:50:27,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 14:50:27,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-09 14:50:27,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 214 transitions. [2020-10-09 14:50:27,580 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8699186991869918 [2020-10-09 14:50:27,580 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 214 transitions. [2020-10-09 14:50:27,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 214 transitions. [2020-10-09 14:50:27,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 14:50:27,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 214 transitions. [2020-10-09 14:50:27,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-09 14:50:27,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-09 14:50:27,590 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-09 14:50:27,592 INFO L185 Difference]: Start difference. First operand has 63 places, 65 transitions, 164 flow. Second operand 3 states and 214 transitions. [2020-10-09 14:50:27,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 63 transitions, 168 flow [2020-10-09 14:50:27,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 63 transitions, 162 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-09 14:50:27,598 INFO L241 Difference]: Finished difference. Result has 63 places, 63 transitions, 150 flow [2020-10-09 14:50:27,601 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=63, PETRI_TRANSITIONS=63} [2020-10-09 14:50:27,601 INFO L341 CegarLoopForPetriNet]: 63 programPoint places, 0 predicate places. [2020-10-09 14:50:27,602 INFO L481 AbstractCegarLoop]: Abstraction has has 63 places, 63 transitions, 150 flow [2020-10-09 14:50:27,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 14:50:27,602 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 14:50:27,602 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 14:50:27,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-09 14:50:27,811 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 14:50:27,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 14:50:27,811 INFO L82 PathProgramCache]: Analyzing trace with hash -551591893, now seen corresponding path program 1 times [2020-10-09 14:50:27,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 14:50:27,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [776257183] [2020-10-09 14:50:27,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-09 14:50:27,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 14:50:27,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-09 14:50:27,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 14:50:27,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:50:27,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 14:50:27,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:50:27,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [776257183] [2020-10-09 14:50:27,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 14:50:27,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-09 14:50:27,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998587915] [2020-10-09 14:50:27,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 14:50:27,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 14:50:27,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 14:50:27,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 14:50:27,935 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 82 [2020-10-09 14:50:27,935 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 63 transitions, 150 flow. Second operand 3 states. [2020-10-09 14:50:27,935 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 14:50:27,935 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 82 [2020-10-09 14:50:27,936 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 14:50:27,968 INFO L129 PetriNetUnfolder]: 30/167 cut-off events. [2020-10-09 14:50:27,969 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2020-10-09 14:50:27,970 INFO L80 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 167 events. 30/167 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 665 event pairs, 4 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 226. Up to 17 conditions per place. [2020-10-09 14:50:27,972 INFO L132 encePairwiseOnDemand]: 76/82 looper letters, 5 selfloop transitions, 5 changer transitions 0/66 dead transitions. [2020-10-09 14:50:27,972 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 66 transitions, 176 flow [2020-10-09 14:50:27,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 14:50:27,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-09 14:50:27,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 215 transitions. [2020-10-09 14:50:27,974 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8739837398373984 [2020-10-09 14:50:27,975 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 215 transitions. [2020-10-09 14:50:27,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 215 transitions. [2020-10-09 14:50:27,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 14:50:27,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 215 transitions. [2020-10-09 14:50:27,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-09 14:50:27,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-09 14:50:27,978 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-09 14:50:27,978 INFO L185 Difference]: Start difference. First operand has 63 places, 63 transitions, 150 flow. Second operand 3 states and 215 transitions. [2020-10-09 14:50:27,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 66 transitions, 176 flow [2020-10-09 14:50:27,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 66 transitions, 174 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-09 14:50:27,982 INFO L241 Difference]: Finished difference. Result has 66 places, 66 transitions, 182 flow [2020-10-09 14:50:27,983 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=182, PETRI_PLACES=66, PETRI_TRANSITIONS=66} [2020-10-09 14:50:27,983 INFO L341 CegarLoopForPetriNet]: 63 programPoint places, 3 predicate places. [2020-10-09 14:50:27,983 INFO L481 AbstractCegarLoop]: Abstraction has has 66 places, 66 transitions, 182 flow [2020-10-09 14:50:27,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 14:50:27,984 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 14:50:27,984 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 14:50:28,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-09 14:50:28,207 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 14:50:28,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 14:50:28,208 INFO L82 PathProgramCache]: Analyzing trace with hash -261779477, now seen corresponding path program 2 times [2020-10-09 14:50:28,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 14:50:28,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1678340633] [2020-10-09 14:50:28,209 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-09 14:50:28,258 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-09 14:50:28,259 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-09 14:50:28,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-09 14:50:28,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 14:50:28,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:50:28,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 14:50:28,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 14:50:28,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1678340633] [2020-10-09 14:50:28,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 14:50:28,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-09 14:50:28,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423696085] [2020-10-09 14:50:28,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 14:50:28,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 14:50:28,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 14:50:28,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 14:50:28,320 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 82 [2020-10-09 14:50:28,320 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 66 transitions, 182 flow. Second operand 3 states. [2020-10-09 14:50:28,321 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 14:50:28,321 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 82 [2020-10-09 14:50:28,321 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 14:50:28,353 INFO L129 PetriNetUnfolder]: 39/185 cut-off events. [2020-10-09 14:50:28,354 INFO L130 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2020-10-09 14:50:28,356 INFO L80 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 185 events. 39/185 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 713 event pairs, 1 based on Foata normal form. 0/159 useless extension candidates. Maximal degree in co-relation 288. Up to 20 conditions per place. [2020-10-09 14:50:28,356 INFO L132 encePairwiseOnDemand]: 76/82 looper letters, 0 selfloop transitions, 0 changer transitions 65/65 dead transitions. [2020-10-09 14:50:28,356 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 65 transitions, 196 flow [2020-10-09 14:50:28,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 14:50:28,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-09 14:50:28,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 215 transitions. [2020-10-09 14:50:28,358 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8739837398373984 [2020-10-09 14:50:28,358 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 215 transitions. [2020-10-09 14:50:28,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 215 transitions. [2020-10-09 14:50:28,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 14:50:28,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 215 transitions. [2020-10-09 14:50:28,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-09 14:50:28,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-09 14:50:28,362 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-09 14:50:28,362 INFO L185 Difference]: Start difference. First operand has 66 places, 66 transitions, 182 flow. Second operand 3 states and 215 transitions. [2020-10-09 14:50:28,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 65 transitions, 196 flow [2020-10-09 14:50:28,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 65 transitions, 182 flow, removed 2 selfloop flow, removed 2 redundant places. [2020-10-09 14:50:28,367 INFO L241 Difference]: Finished difference. Result has 62 places, 0 transitions, 0 flow [2020-10-09 14:50:28,368 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=62, PETRI_TRANSITIONS=0} [2020-10-09 14:50:28,369 INFO L341 CegarLoopForPetriNet]: 63 programPoint places, -1 predicate places. [2020-10-09 14:50:28,369 INFO L481 AbstractCegarLoop]: Abstraction has has 62 places, 0 transitions, 0 flow [2020-10-09 14:50:28,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 14:50:28,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-09 14:50:28,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.10 02:50:28 BasicIcfg [2020-10-09 14:50:28,592 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-09 14:50:28,596 INFO L168 Benchmark]: Toolchain (without parser) took 3583.93 ms. Allocated memory was 250.6 MB in the beginning and 357.0 MB in the end (delta: 106.4 MB). Free memory was 205.1 MB in the beginning and 255.8 MB in the end (delta: -50.7 MB). Peak memory consumption was 55.7 MB. Max. memory is 14.2 GB. [2020-10-09 14:50:28,597 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 250.6 MB. Free memory is still 227.0 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-09 14:50:28,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 634.32 ms. Allocated memory was 250.6 MB in the beginning and 311.4 MB in the end (delta: 60.8 MB). Free memory was 205.1 MB in the beginning and 267.5 MB in the end (delta: -62.4 MB). Peak memory consumption was 33.5 MB. Max. memory is 14.2 GB. [2020-10-09 14:50:28,599 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.65 ms. Allocated memory is still 311.4 MB. Free memory was 267.5 MB in the beginning and 266.9 MB in the end (delta: 629.1 kB). Peak memory consumption was 629.1 kB. Max. memory is 14.2 GB. [2020-10-09 14:50:28,600 INFO L168 Benchmark]: Boogie Preprocessor took 30.48 ms. Allocated memory is still 311.4 MB. Free memory was 266.9 MB in the beginning and 264.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-09 14:50:28,601 INFO L168 Benchmark]: RCFGBuilder took 429.22 ms. Allocated memory is still 311.4 MB. Free memory was 264.4 MB in the beginning and 242.2 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 14.2 GB. [2020-10-09 14:50:28,602 INFO L168 Benchmark]: TraceAbstraction took 2434.75 ms. Allocated memory was 311.4 MB in the beginning and 357.0 MB in the end (delta: 45.6 MB). Free memory was 242.2 MB in the beginning and 255.8 MB in the end (delta: -13.6 MB). Peak memory consumption was 32.0 MB. Max. memory is 14.2 GB. [2020-10-09 14:50:28,607 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 250.6 MB. Free memory is still 227.0 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 634.32 ms. Allocated memory was 250.6 MB in the beginning and 311.4 MB in the end (delta: 60.8 MB). Free memory was 205.1 MB in the beginning and 267.5 MB in the end (delta: -62.4 MB). Peak memory consumption was 33.5 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 48.65 ms. Allocated memory is still 311.4 MB. Free memory was 267.5 MB in the beginning and 266.9 MB in the end (delta: 629.1 kB). Peak memory consumption was 629.1 kB. Max. memory is 14.2 GB. * Boogie Preprocessor took 30.48 ms. Allocated memory is still 311.4 MB. Free memory was 266.9 MB in the beginning and 264.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 429.22 ms. Allocated memory is still 311.4 MB. Free memory was 264.4 MB in the beginning and 242.2 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2434.75 ms. Allocated memory was 311.4 MB in the beginning and 357.0 MB in the end (delta: 45.6 MB). Free memory was 242.2 MB in the beginning and 255.8 MB in the end (delta: -13.6 MB). Peak memory consumption was 32.0 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 12 SDtfs, 10 SDslu, 0 SDs, 0 SdLazy, 22 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 254 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=182occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 254 ConstructedInterpolants, 0 QuantifiedInterpolants, 8130 SizeOfPredicates, 0 NumberOfNonLiveVariables, 332 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...