/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-wmm/safe033_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 11:22:15,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 11:22:15,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 11:22:15,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 11:22:15,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 11:22:15,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 11:22:15,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 11:22:15,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 11:22:15,721 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 11:22:15,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 11:22:15,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 11:22:15,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 11:22:15,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 11:22:15,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 11:22:15,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 11:22:15,728 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 11:22:15,729 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 11:22:15,730 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 11:22:15,731 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 11:22:15,733 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 11:22:15,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 11:22:15,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 11:22:15,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 11:22:15,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 11:22:15,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 11:22:15,746 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 11:22:15,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 11:22:15,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 11:22:15,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 11:22:15,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 11:22:15,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 11:22:15,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 11:22:15,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 11:22:15,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 11:22:15,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 11:22:15,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 11:22:15,754 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-16 11:22:15,777 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 11:22:15,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 11:22:15,778 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 11:22:15,778 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 11:22:15,779 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 11:22:15,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 11:22:15,779 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 11:22:15,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 11:22:15,779 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 11:22:15,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 11:22:15,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 11:22:15,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 11:22:15,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 11:22:15,780 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 11:22:15,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 11:22:15,781 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 11:22:15,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 11:22:15,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 11:22:15,781 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 11:22:15,782 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 11:22:15,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 11:22:15,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:22:15,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 11:22:15,782 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 11:22:15,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 11:22:15,783 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 11:22:15,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 11:22:15,783 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 11:22:15,783 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-16 11:22:15,784 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 11:22:16,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 11:22:16,080 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 11:22:16,084 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 11:22:16,085 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 11:22:16,086 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 11:22:16,087 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i [2020-10-16 11:22:16,164 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bb5a93cf6/c034c8a0bc214a0cac5ee428bf44b0a2/FLAG91eb82461 [2020-10-16 11:22:16,680 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 11:22:16,681 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i [2020-10-16 11:22:16,699 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bb5a93cf6/c034c8a0bc214a0cac5ee428bf44b0a2/FLAG91eb82461 [2020-10-16 11:22:16,984 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bb5a93cf6/c034c8a0bc214a0cac5ee428bf44b0a2 [2020-10-16 11:22:16,994 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 11:22:16,996 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 11:22:16,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 11:22:16,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 11:22:17,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 11:22:17,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:22:16" (1/1) ... [2020-10-16 11:22:17,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3765c57d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:17, skipping insertion in model container [2020-10-16 11:22:17,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:22:16" (1/1) ... [2020-10-16 11:22:17,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 11:22:17,057 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 11:22:17,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:22:17,455 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 11:22:17,659 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:22:17,751 INFO L208 MainTranslator]: Completed translation [2020-10-16 11:22:17,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:17 WrapperNode [2020-10-16 11:22:17,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 11:22:17,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 11:22:17,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 11:22:17,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 11:22:17,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:17" (1/1) ... [2020-10-16 11:22:17,786 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:17" (1/1) ... [2020-10-16 11:22:17,810 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 11:22:17,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 11:22:17,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 11:22:17,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 11:22:17,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:17" (1/1) ... [2020-10-16 11:22:17,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:17" (1/1) ... [2020-10-16 11:22:17,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:17" (1/1) ... [2020-10-16 11:22:17,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:17" (1/1) ... [2020-10-16 11:22:17,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:17" (1/1) ... [2020-10-16 11:22:17,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:17" (1/1) ... [2020-10-16 11:22:17,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:17" (1/1) ... [2020-10-16 11:22:17,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 11:22:17,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 11:22:17,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 11:22:17,834 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 11:22:17,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:17" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 11:22:17,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 11:22:17,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 11:22:17,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 11:22:17,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 11:22:17,914 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 11:22:17,914 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 11:22:17,914 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 11:22:17,915 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 11:22:17,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 11:22:17,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 11:22:17,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 11:22:17,917 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 11:22:18,246 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 11:22:18,247 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 11:22:18,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:22:18 BoogieIcfgContainer [2020-10-16 11:22:18,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 11:22:18,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 11:22:18,251 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 11:22:18,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 11:22:18,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:22:16" (1/3) ... [2020-10-16 11:22:18,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cde5bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:22:18, skipping insertion in model container [2020-10-16 11:22:18,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:17" (2/3) ... [2020-10-16 11:22:18,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cde5bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:22:18, skipping insertion in model container [2020-10-16 11:22:18,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:22:18" (3/3) ... [2020-10-16 11:22:18,258 INFO L111 eAbstractionObserver]: Analyzing ICFG safe033_tso.opt.i [2020-10-16 11:22:18,270 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 11:22:18,270 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 11:22:18,277 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 11:22:18,277 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 11:22:18,302 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:18,303 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:18,303 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:18,304 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:18,304 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:18,305 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:18,305 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:18,305 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:18,306 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:18,306 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:18,306 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:18,306 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:18,310 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:18,311 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:18,311 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:18,311 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:18,320 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:18,320 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:18,321 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:18,321 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:18,323 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 11:22:18,335 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-16 11:22:18,353 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:22:18,353 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:22:18,353 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 11:22:18,353 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:22:18,354 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:22:18,354 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:22:18,354 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:22:18,354 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:22:18,365 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 11:22:18,367 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 55 transitions, 120 flow [2020-10-16 11:22:18,369 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 55 transitions, 120 flow [2020-10-16 11:22:18,371 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 60 places, 55 transitions, 120 flow [2020-10-16 11:22:18,411 INFO L129 PetriNetUnfolder]: 2/53 cut-off events. [2020-10-16 11:22:18,411 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 11:22:18,416 INFO L80 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 53 events. 2/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-10-16 11:22:18,421 INFO L117 LiptonReduction]: Number of co-enabled transitions 672 [2020-10-16 11:22:19,700 INFO L132 LiptonReduction]: Checked pairs total: 1233 [2020-10-16 11:22:19,700 INFO L134 LiptonReduction]: Total number of compositions: 49 [2020-10-16 11:22:19,708 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-10-16 11:22:19,721 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-10-16 11:22:19,723 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-10-16 11:22:19,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-16 11:22:19,730 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:19,731 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-16 11:22:19,731 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:19,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:19,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1785955775, now seen corresponding path program 1 times [2020-10-16 11:22:19,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:19,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659598166] [2020-10-16 11:22:19,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:19,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:19,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:22:19,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659598166] [2020-10-16 11:22:19,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:19,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 11:22:19,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416009079] [2020-10-16 11:22:19,960 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:22:19,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:19,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:22:19,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:22:19,979 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-10-16 11:22:20,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:20,015 INFO L93 Difference]: Finished difference Result 72 states and 154 transitions. [2020-10-16 11:22:20,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:22:20,016 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-16 11:22:20,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:20,027 INFO L225 Difference]: With dead ends: 72 [2020-10-16 11:22:20,028 INFO L226 Difference]: Without dead ends: 56 [2020-10-16 11:22:20,029 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:22:20,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-16 11:22:20,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-16 11:22:20,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-16 11:22:20,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 114 transitions. [2020-10-16 11:22:20,072 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 114 transitions. Word has length 6 [2020-10-16 11:22:20,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:20,073 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 114 transitions. [2020-10-16 11:22:20,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:22:20,073 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 114 transitions. [2020-10-16 11:22:20,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-16 11:22:20,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:20,074 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:20,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 11:22:20,075 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:20,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:20,075 INFO L82 PathProgramCache]: Analyzing trace with hash -469946389, now seen corresponding path program 1 times [2020-10-16 11:22:20,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:20,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401114857] [2020-10-16 11:22:20,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:20,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:22:20,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401114857] [2020-10-16 11:22:20,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:20,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:22:20,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454705274] [2020-10-16 11:22:20,160 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:22:20,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:20,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:22:20,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:22:20,161 INFO L87 Difference]: Start difference. First operand 56 states and 114 transitions. Second operand 4 states. [2020-10-16 11:22:20,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:20,202 INFO L93 Difference]: Finished difference Result 56 states and 99 transitions. [2020-10-16 11:22:20,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:22:20,202 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-16 11:22:20,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:20,203 INFO L225 Difference]: With dead ends: 56 [2020-10-16 11:22:20,204 INFO L226 Difference]: Without dead ends: 40 [2020-10-16 11:22:20,205 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:22:20,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-16 11:22:20,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-16 11:22:20,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-16 11:22:20,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 66 transitions. [2020-10-16 11:22:20,211 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 66 transitions. Word has length 7 [2020-10-16 11:22:20,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:20,211 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 66 transitions. [2020-10-16 11:22:20,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:22:20,212 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2020-10-16 11:22:20,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 11:22:20,212 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:20,213 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:20,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 11:22:20,213 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:20,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:20,213 INFO L82 PathProgramCache]: Analyzing trace with hash -658099301, now seen corresponding path program 1 times [2020-10-16 11:22:20,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:20,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197181710] [2020-10-16 11:22:20,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:20,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:20,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:22:20,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197181710] [2020-10-16 11:22:20,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:20,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:22:20,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067917618] [2020-10-16 11:22:20,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:22:20,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:20,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:22:20,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:22:20,280 INFO L87 Difference]: Start difference. First operand 40 states and 66 transitions. Second operand 5 states. [2020-10-16 11:22:20,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:20,315 INFO L93 Difference]: Finished difference Result 35 states and 54 transitions. [2020-10-16 11:22:20,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 11:22:20,316 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-16 11:22:20,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:20,317 INFO L225 Difference]: With dead ends: 35 [2020-10-16 11:22:20,317 INFO L226 Difference]: Without dead ends: 28 [2020-10-16 11:22:20,317 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 11:22:20,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-16 11:22:20,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-16 11:22:20,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-16 11:22:20,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 42 transitions. [2020-10-16 11:22:20,321 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 42 transitions. Word has length 9 [2020-10-16 11:22:20,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:20,322 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 42 transitions. [2020-10-16 11:22:20,322 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:22:20,322 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 42 transitions. [2020-10-16 11:22:20,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 11:22:20,323 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:20,323 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:20,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 11:22:20,323 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:20,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:20,324 INFO L82 PathProgramCache]: Analyzing trace with hash 967414389, now seen corresponding path program 1 times [2020-10-16 11:22:20,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:20,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777961015] [2020-10-16 11:22:20,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:20,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:20,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:22:20,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777961015] [2020-10-16 11:22:20,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:20,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:22:20,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436036392] [2020-10-16 11:22:20,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:22:20,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:20,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:22:20,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:22:20,382 INFO L87 Difference]: Start difference. First operand 28 states and 42 transitions. Second operand 3 states. [2020-10-16 11:22:20,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:20,400 INFO L93 Difference]: Finished difference Result 35 states and 50 transitions. [2020-10-16 11:22:20,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:22:20,400 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-16 11:22:20,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:20,401 INFO L225 Difference]: With dead ends: 35 [2020-10-16 11:22:20,401 INFO L226 Difference]: Without dead ends: 16 [2020-10-16 11:22:20,402 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:22:20,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-10-16 11:22:20,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-16 11:22:20,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-16 11:22:20,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2020-10-16 11:22:20,406 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 12 [2020-10-16 11:22:20,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:20,406 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2020-10-16 11:22:20,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:22:20,407 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-10-16 11:22:20,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 11:22:20,407 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:20,407 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:20,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 11:22:20,408 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:20,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:20,408 INFO L82 PathProgramCache]: Analyzing trace with hash -129480839, now seen corresponding path program 2 times [2020-10-16 11:22:20,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:20,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208134220] [2020-10-16 11:22:20,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:20,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:20,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:22:20,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208134220] [2020-10-16 11:22:20,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:20,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:22:20,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598539864] [2020-10-16 11:22:20,479 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:22:20,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:20,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:22:20,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:22:20,480 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 4 states. [2020-10-16 11:22:20,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:20,490 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2020-10-16 11:22:20,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:22:20,491 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-16 11:22:20,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:20,491 INFO L225 Difference]: With dead ends: 15 [2020-10-16 11:22:20,491 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 11:22:20,492 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:22:20,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 11:22:20,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 11:22:20,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 11:22:20,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 11:22:20,493 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-10-16 11:22:20,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:20,493 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 11:22:20,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:22:20,493 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 11:22:20,494 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 11:22:20,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 11:22:20,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:22:20 BasicIcfg [2020-10-16 11:22:20,498 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 11:22:20,500 INFO L168 Benchmark]: Toolchain (without parser) took 3504.37 ms. Allocated memory was 139.5 MB in the beginning and 245.9 MB in the end (delta: 106.4 MB). Free memory was 101.4 MB in the beginning and 159.2 MB in the end (delta: -57.7 MB). Peak memory consumption was 48.7 MB. Max. memory is 7.1 GB. [2020-10-16 11:22:20,501 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-10-16 11:22:20,502 INFO L168 Benchmark]: CACSL2BoogieTranslator took 756.58 ms. Allocated memory was 139.5 MB in the beginning and 205.0 MB in the end (delta: 65.5 MB). Free memory was 101.0 MB in the beginning and 163.5 MB in the end (delta: -62.5 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2020-10-16 11:22:20,503 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.88 ms. Allocated memory is still 205.0 MB. Free memory was 163.5 MB in the beginning and 161.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 11:22:20,504 INFO L168 Benchmark]: Boogie Preprocessor took 23.02 ms. Allocated memory is still 205.0 MB. Free memory was 161.5 MB in the beginning and 160.5 MB in the end (delta: 978.4 kB). Peak memory consumption was 978.4 kB. Max. memory is 7.1 GB. [2020-10-16 11:22:20,505 INFO L168 Benchmark]: RCFGBuilder took 415.48 ms. Allocated memory is still 205.0 MB. Free memory was 160.5 MB in the beginning and 140.4 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2020-10-16 11:22:20,506 INFO L168 Benchmark]: TraceAbstraction took 2246.82 ms. Allocated memory was 205.0 MB in the beginning and 245.9 MB in the end (delta: 40.9 MB). Free memory was 139.4 MB in the beginning and 159.2 MB in the end (delta: -19.8 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2020-10-16 11:22:20,510 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 756.58 ms. Allocated memory was 139.5 MB in the beginning and 205.0 MB in the end (delta: 65.5 MB). Free memory was 101.0 MB in the beginning and 163.5 MB in the end (delta: -62.5 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 56.88 ms. Allocated memory is still 205.0 MB. Free memory was 163.5 MB in the beginning and 161.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.02 ms. Allocated memory is still 205.0 MB. Free memory was 161.5 MB in the beginning and 160.5 MB in the end (delta: 978.4 kB). Peak memory consumption was 978.4 kB. Max. memory is 7.1 GB. * RCFGBuilder took 415.48 ms. Allocated memory is still 205.0 MB. Free memory was 160.5 MB in the beginning and 140.4 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2246.82 ms. Allocated memory was 205.0 MB in the beginning and 245.9 MB in the end (delta: 40.9 MB). Free memory was 139.4 MB in the beginning and 159.2 MB in the end (delta: -19.8 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 490 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 1 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 31 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.3s, 60 PlacesBefore, 22 PlacesAfterwards, 55 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 5 FixpointIterations, 12 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 49 TotalNumberOfCompositions, 1233 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 64 SDtfs, 38 SDslu, 64 SDs, 0 SdLazy, 45 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 939 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...