/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/safe029_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-17 00:59:53,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-17 00:59:53,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-17 00:59:53,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-17 00:59:53,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-17 00:59:53,514 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-17 00:59:53,518 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-17 00:59:53,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-17 00:59:53,525 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-17 00:59:53,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-17 00:59:53,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-17 00:59:53,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-17 00:59:53,531 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-17 00:59:53,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-17 00:59:53,537 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-17 00:59:53,539 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-17 00:59:53,540 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-17 00:59:53,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-17 00:59:53,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-17 00:59:53,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-17 00:59:53,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-17 00:59:53,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-17 00:59:53,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-17 00:59:53,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-17 00:59:53,575 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-17 00:59:53,582 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-17 00:59:53,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-17 00:59:53,587 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-17 00:59:53,588 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-17 00:59:53,589 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-17 00:59:53,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-17 00:59:53,590 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-17 00:59:53,591 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-17 00:59:53,591 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-17 00:59:53,592 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-17 00:59:53,593 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-17 00:59:53,595 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-17 00:59:53,645 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-17 00:59:53,646 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-17 00:59:53,648 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-17 00:59:53,648 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-17 00:59:53,649 INFO L138 SettingsManager]: * Use SBE=true [2020-09-17 00:59:53,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-17 00:59:53,649 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-17 00:59:53,649 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-17 00:59:53,649 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-17 00:59:53,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-17 00:59:53,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-17 00:59:53,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-17 00:59:53,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-17 00:59:53,652 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-17 00:59:53,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-17 00:59:53,652 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-17 00:59:53,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-17 00:59:53,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-17 00:59:53,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-17 00:59:53,653 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-17 00:59:53,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-17 00:59:53,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 00:59:53,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-17 00:59:53,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-17 00:59:53,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-17 00:59:53,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-17 00:59:53,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-17 00:59:53,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-17 00:59:53,655 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-17 00:59:53,655 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-17 00:59:54,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-17 00:59:54,144 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-17 00:59:54,150 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-17 00:59:54,152 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-17 00:59:54,155 INFO L275 PluginConnector]: CDTParser initialized [2020-09-17 00:59:54,156 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe029_tso.oepc.i [2020-09-17 00:59:54,242 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dc55fb8f/76cd2e55f541480abb32b5de338df7d3/FLAG585545127 [2020-09-17 00:59:54,864 INFO L306 CDTParser]: Found 1 translation units. [2020-09-17 00:59:54,865 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_tso.oepc.i [2020-09-17 00:59:54,881 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dc55fb8f/76cd2e55f541480abb32b5de338df7d3/FLAG585545127 [2020-09-17 00:59:55,134 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dc55fb8f/76cd2e55f541480abb32b5de338df7d3 [2020-09-17 00:59:55,148 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-17 00:59:55,155 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-17 00:59:55,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-17 00:59:55,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-17 00:59:55,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-17 00:59:55,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 12:59:55" (1/1) ... [2020-09-17 00:59:55,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ece116e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:59:55, skipping insertion in model container [2020-09-17 00:59:55,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 12:59:55" (1/1) ... [2020-09-17 00:59:55,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-17 00:59:55,256 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-17 00:59:55,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 00:59:55,790 INFO L203 MainTranslator]: Completed pre-run [2020-09-17 00:59:55,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 00:59:55,925 INFO L208 MainTranslator]: Completed translation [2020-09-17 00:59:55,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:59:55 WrapperNode [2020-09-17 00:59:55,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-17 00:59:55,927 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-17 00:59:55,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-17 00:59:55,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-17 00:59:55,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:59:55" (1/1) ... [2020-09-17 00:59:55,958 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:59:55" (1/1) ... [2020-09-17 00:59:55,987 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-17 00:59:55,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-17 00:59:55,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-17 00:59:55,988 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-17 00:59:55,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:59:55" (1/1) ... [2020-09-17 00:59:55,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:59:55" (1/1) ... [2020-09-17 00:59:56,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:59:55" (1/1) ... [2020-09-17 00:59:56,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:59:55" (1/1) ... [2020-09-17 00:59:56,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:59:55" (1/1) ... [2020-09-17 00:59:56,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:59:55" (1/1) ... [2020-09-17 00:59:56,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:59:55" (1/1) ... [2020-09-17 00:59:56,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-17 00:59:56,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-17 00:59:56,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-17 00:59:56,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-17 00:59:56,021 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:59:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 00:59:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-17 00:59:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-17 00:59:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-17 00:59:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-17 00:59:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-17 00:59:56,097 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-17 00:59:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-17 00:59:56,098 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-17 00:59:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-17 00:59:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-17 00:59:56,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-17 00:59:56,101 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-17 00:59:56,481 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-17 00:59:56,482 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-17 00:59:56,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 12:59:56 BoogieIcfgContainer [2020-09-17 00:59:56,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-17 00:59:56,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-17 00:59:56,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-17 00:59:56,492 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-17 00:59:56,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.09 12:59:55" (1/3) ... [2020-09-17 00:59:56,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15df1b46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 12:59:56, skipping insertion in model container [2020-09-17 00:59:56,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:59:55" (2/3) ... [2020-09-17 00:59:56,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15df1b46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 12:59:56, skipping insertion in model container [2020-09-17 00:59:56,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 12:59:56" (3/3) ... [2020-09-17 00:59:56,497 INFO L109 eAbstractionObserver]: Analyzing ICFG safe029_tso.oepc.i [2020-09-17 00:59:56,509 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-17 00:59:56,510 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-17 00:59:56,520 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-17 00:59:56,522 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-17 00:59:56,550 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:59:56,550 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:59:56,551 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:59:56,551 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:59:56,551 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:59:56,551 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:59:56,552 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:59:56,552 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:59:56,552 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:59:56,552 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:59:56,553 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:59:56,553 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:59:56,557 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:59:56,558 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:59:56,558 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:59:56,558 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:59:56,568 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:59:56,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:59:56,569 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:59:56,569 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:59:56,590 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-17 00:59:56,615 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 00:59:56,616 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 00:59:56,616 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-17 00:59:56,616 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-17 00:59:56,616 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 00:59:56,616 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 00:59:56,617 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 00:59:56,617 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 00:59:56,633 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 54 transitions, 118 flow [2020-09-17 00:59:56,635 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 59 places, 54 transitions, 118 flow [2020-09-17 00:59:56,676 INFO L129 PetriNetUnfolder]: 2/52 cut-off events. [2020-09-17 00:59:56,676 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 00:59:56,682 INFO L80 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 52 events. 2/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-09-17 00:59:56,687 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 59 places, 54 transitions, 118 flow [2020-09-17 00:59:56,707 INFO L129 PetriNetUnfolder]: 2/52 cut-off events. [2020-09-17 00:59:56,707 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 00:59:56,712 INFO L80 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 52 events. 2/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-09-17 00:59:56,714 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 672 [2020-09-17 00:59:56,715 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-17 00:59:58,241 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1300 [2020-09-17 00:59:58,242 INFO L214 etLargeBlockEncoding]: Total number of compositions: 46 [2020-09-17 00:59:58,247 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-09-17 00:59:58,262 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-09-17 00:59:58,264 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-09-17 00:59:58,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-09-17 00:59:58,273 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:59:58,275 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-09-17 00:59:58,275 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:59:58,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:59:58,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1812706200, now seen corresponding path program 1 times [2020-09-17 00:59:58,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:59:58,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409808579] [2020-09-17 00:59:58,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:59:58,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:59:58,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:59:58,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409808579] [2020-09-17 00:59:58,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:59:58,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-17 00:59:58,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368091552] [2020-09-17 00:59:58,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 00:59:58,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:59:58,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 00:59:58,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:59:58,557 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-09-17 00:59:58,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:59:58,596 INFO L93 Difference]: Finished difference Result 72 states and 154 transitions. [2020-09-17 00:59:58,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 00:59:58,598 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-09-17 00:59:58,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:59:58,612 INFO L225 Difference]: With dead ends: 72 [2020-09-17 00:59:58,613 INFO L226 Difference]: Without dead ends: 56 [2020-09-17 00:59:58,615 INFO L675 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 [2020-09-17 00:59:58,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-09-17 00:59:58,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-09-17 00:59:58,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-09-17 00:59:58,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 114 transitions. [2020-09-17 00:59:58,667 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 114 transitions. Word has length 6 [2020-09-17 00:59:58,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:59:58,667 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 114 transitions. [2020-09-17 00:59:58,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 00:59:58,668 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 114 transitions. [2020-09-17 00:59:58,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-09-17 00:59:58,668 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:59:58,669 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:59:58,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-17 00:59:58,669 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:59:58,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:59:58,670 INFO L82 PathProgramCache]: Analyzing trace with hash 343673099, now seen corresponding path program 1 times [2020-09-17 00:59:58,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:59:58,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624753888] [2020-09-17 00:59:58,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:59:58,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:59:58,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:59:58,777 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624753888] [2020-09-17 00:59:58,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:59:58,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-17 00:59:58,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651153350] [2020-09-17 00:59:58,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 00:59:58,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:59:58,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 00:59:58,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:59:58,781 INFO L87 Difference]: Start difference. First operand 56 states and 114 transitions. Second operand 3 states. [2020-09-17 00:59:58,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:59:58,795 INFO L93 Difference]: Finished difference Result 55 states and 111 transitions. [2020-09-17 00:59:58,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 00:59:58,797 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-09-17 00:59:58,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:59:58,798 INFO L225 Difference]: With dead ends: 55 [2020-09-17 00:59:58,798 INFO L226 Difference]: Without dead ends: 55 [2020-09-17 00:59:58,800 INFO L675 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 [2020-09-17 00:59:58,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-17 00:59:58,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-09-17 00:59:58,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-17 00:59:58,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 111 transitions. [2020-09-17 00:59:58,818 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 111 transitions. Word has length 7 [2020-09-17 00:59:58,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:59:58,818 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 111 transitions. [2020-09-17 00:59:58,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 00:59:58,819 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 111 transitions. [2020-09-17 00:59:58,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-17 00:59:58,820 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:59:58,820 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:59:58,820 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-17 00:59:58,820 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:59:58,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:59:58,821 INFO L82 PathProgramCache]: Analyzing trace with hash 2063912123, now seen corresponding path program 1 times [2020-09-17 00:59:58,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:59:58,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477563675] [2020-09-17 00:59:58,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:59:58,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:59:58,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:59:58,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477563675] [2020-09-17 00:59:58,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:59:58,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 00:59:58,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777092196] [2020-09-17 00:59:58,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 00:59:58,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:59:58,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 00:59:58,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 00:59:58,926 INFO L87 Difference]: Start difference. First operand 55 states and 111 transitions. Second operand 4 states. [2020-09-17 00:59:58,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:59:58,965 INFO L93 Difference]: Finished difference Result 56 states and 99 transitions. [2020-09-17 00:59:58,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 00:59:58,966 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-09-17 00:59:58,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:59:58,967 INFO L225 Difference]: With dead ends: 56 [2020-09-17 00:59:58,967 INFO L226 Difference]: Without dead ends: 40 [2020-09-17 00:59:58,968 INFO L675 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 [2020-09-17 00:59:58,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-09-17 00:59:58,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-09-17 00:59:58,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-17 00:59:58,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 66 transitions. [2020-09-17 00:59:58,974 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 66 transitions. Word has length 8 [2020-09-17 00:59:58,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:59:58,975 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 66 transitions. [2020-09-17 00:59:58,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 00:59:58,975 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2020-09-17 00:59:58,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-17 00:59:58,975 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:59:58,976 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:59:58,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-17 00:59:58,976 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:59:58,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:59:58,977 INFO L82 PathProgramCache]: Analyzing trace with hash -444073675, now seen corresponding path program 1 times [2020-09-17 00:59:58,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:59:58,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366804910] [2020-09-17 00:59:58,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:59:58,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:59:59,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:59:59,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366804910] [2020-09-17 00:59:59,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:59:59,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 00:59:59,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307681194] [2020-09-17 00:59:59,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 00:59:59,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:59:59,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 00:59:59,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:59:59,045 INFO L87 Difference]: Start difference. First operand 40 states and 66 transitions. Second operand 3 states. [2020-09-17 00:59:59,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:59:59,055 INFO L93 Difference]: Finished difference Result 51 states and 79 transitions. [2020-09-17 00:59:59,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 00:59:59,055 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-17 00:59:59,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:59:59,056 INFO L225 Difference]: With dead ends: 51 [2020-09-17 00:59:59,056 INFO L226 Difference]: Without dead ends: 41 [2020-09-17 00:59:59,057 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:59:59,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-09-17 00:59:59,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2020-09-17 00:59:59,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-09-17 00:59:59,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 60 transitions. [2020-09-17 00:59:59,062 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 60 transitions. Word has length 9 [2020-09-17 00:59:59,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:59:59,063 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 60 transitions. [2020-09-17 00:59:59,063 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 00:59:59,063 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 60 transitions. [2020-09-17 00:59:59,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-17 00:59:59,064 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:59:59,064 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:59:59,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-17 00:59:59,064 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:59:59,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:59:59,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1686734005, now seen corresponding path program 1 times [2020-09-17 00:59:59,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:59:59,065 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174590762] [2020-09-17 00:59:59,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:59:59,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:59:59,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:59:59,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174590762] [2020-09-17 00:59:59,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:59:59,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 00:59:59,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080554818] [2020-09-17 00:59:59,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 00:59:59,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:59:59,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 00:59:59,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:59:59,112 INFO L87 Difference]: Start difference. First operand 39 states and 60 transitions. Second operand 3 states. [2020-09-17 00:59:59,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:59:59,120 INFO L93 Difference]: Finished difference Result 42 states and 57 transitions. [2020-09-17 00:59:59,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 00:59:59,121 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-17 00:59:59,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:59:59,122 INFO L225 Difference]: With dead ends: 42 [2020-09-17 00:59:59,122 INFO L226 Difference]: Without dead ends: 31 [2020-09-17 00:59:59,122 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:59:59,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-09-17 00:59:59,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2020-09-17 00:59:59,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-17 00:59:59,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2020-09-17 00:59:59,126 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2020-09-17 00:59:59,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:59:59,127 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-09-17 00:59:59,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 00:59:59,127 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2020-09-17 00:59:59,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-17 00:59:59,128 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:59:59,128 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:59:59,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-17 00:59:59,128 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:59:59,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:59:59,129 INFO L82 PathProgramCache]: Analyzing trace with hash -881401391, now seen corresponding path program 1 times [2020-09-17 00:59:59,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:59:59,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014807291] [2020-09-17 00:59:59,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:59:59,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:59:59,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:59:59,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014807291] [2020-09-17 00:59:59,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:59:59,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 00:59:59,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697812893] [2020-09-17 00:59:59,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 00:59:59,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:59:59,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 00:59:59,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 00:59:59,239 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 5 states. [2020-09-17 00:59:59,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:59:59,268 INFO L93 Difference]: Finished difference Result 25 states and 34 transitions. [2020-09-17 00:59:59,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 00:59:59,269 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-09-17 00:59:59,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:59:59,269 INFO L225 Difference]: With dead ends: 25 [2020-09-17 00:59:59,269 INFO L226 Difference]: Without dead ends: 0 [2020-09-17 00:59:59,270 INFO L675 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 [2020-09-17 00:59:59,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-17 00:59:59,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-17 00:59:59,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-17 00:59:59,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-17 00:59:59,271 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-09-17 00:59:59,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:59:59,271 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-17 00:59:59,271 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 00:59:59,272 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-17 00:59:59,272 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-17 00:59:59,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-17 00:59:59,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.09 12:59:59 BasicIcfg [2020-09-17 00:59:59,277 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-17 00:59:59,281 INFO L168 Benchmark]: Toolchain (without parser) took 4129.68 ms. Allocated memory was 142.1 MB in the beginning and 244.3 MB in the end (delta: 102.2 MB). Free memory was 102.9 MB in the beginning and 123.2 MB in the end (delta: -20.3 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. [2020-09-17 00:59:59,282 INFO L168 Benchmark]: CDTParser took 0.62 ms. Allocated memory is still 142.1 MB. Free memory was 122.4 MB in the beginning and 122.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-17 00:59:59,283 INFO L168 Benchmark]: CACSL2BoogieTranslator took 767.95 ms. Allocated memory was 142.1 MB in the beginning and 205.0 MB in the end (delta: 62.9 MB). Free memory was 102.2 MB in the beginning and 163.4 MB in the end (delta: -61.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2020-09-17 00:59:59,284 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.01 ms. Allocated memory is still 205.0 MB. Free memory was 163.4 MB in the beginning and 161.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-17 00:59:59,285 INFO L168 Benchmark]: Boogie Preprocessor took 31.46 ms. Allocated memory is still 205.0 MB. Free memory was 161.5 MB in the beginning and 159.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-17 00:59:59,286 INFO L168 Benchmark]: RCFGBuilder took 468.02 ms. Allocated memory is still 205.0 MB. Free memory was 159.6 MB in the beginning and 140.3 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. [2020-09-17 00:59:59,287 INFO L168 Benchmark]: TraceAbstraction took 2788.92 ms. Allocated memory was 205.0 MB in the beginning and 244.3 MB in the end (delta: 39.3 MB). Free memory was 139.6 MB in the beginning and 123.2 MB in the end (delta: 16.4 MB). Peak memory consumption was 55.7 MB. Max. memory is 7.1 GB. [2020-09-17 00:59:59,291 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62 ms. Allocated memory is still 142.1 MB. Free memory was 122.4 MB in the beginning and 122.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 767.95 ms. Allocated memory was 142.1 MB in the beginning and 205.0 MB in the end (delta: 62.9 MB). Free memory was 102.2 MB in the beginning and 163.4 MB in the end (delta: -61.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 60.01 ms. Allocated memory is still 205.0 MB. Free memory was 163.4 MB in the beginning and 161.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.46 ms. Allocated memory is still 205.0 MB. Free memory was 161.5 MB in the beginning and 159.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 468.02 ms. Allocated memory is still 205.0 MB. Free memory was 159.6 MB in the beginning and 140.3 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2788.92 ms. Allocated memory was 205.0 MB in the beginning and 244.3 MB in the end (delta: 39.3 MB). Free memory was 139.6 MB in the beginning and 123.2 MB in the end (delta: 16.4 MB). Peak memory consumption was 55.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 59 ProgramPointsBefore, 22 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 7 FixpointIterations, 11 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 382 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 1300 CheckedPairsTotal, 46 TotalNumberOfCompositions - 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, 53 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 79 SDtfs, 33 SDslu, 63 SDs, 0 SdLazy, 38 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s 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, 6 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 861 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...