/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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-lit/qw2004-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 12:56:47,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 12:56:47,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 12:56:47,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 12:56:47,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 12:56:47,398 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 12:56:47,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 12:56:47,410 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 12:56:47,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 12:56:47,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 12:56:47,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 12:56:47,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 12:56:47,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 12:56:47,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 12:56:47,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 12:56:47,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 12:56:47,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 12:56:47,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 12:56:47,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 12:56:47,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 12:56:47,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 12:56:47,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 12:56:47,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 12:56:47,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 12:56:47,468 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 12:56:47,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 12:56:47,473 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 12:56:47,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 12:56:47,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 12:56:47,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 12:56:47,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 12:56:47,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 12:56:47,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 12:56:47,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 12:56:47,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 12:56:47,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 12:56:47,480 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 [2020-11-09 12:56:47,506 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 12:56:47,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 12:56:47,508 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 12:56:47,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 12:56:47,509 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 12:56:47,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 12:56:47,509 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 12:56:47,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 12:56:47,510 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 12:56:47,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 12:56:47,510 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 12:56:47,510 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 12:56:47,510 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 12:56:47,510 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 12:56:47,511 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 12:56:47,511 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 12:56:47,511 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 12:56:47,511 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 12:56:47,511 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 12:56:47,511 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 12:56:47,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 12:56:47,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 12:56:47,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 12:56:47,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-09 12:56:47,515 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 12:56:47,515 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 12:56:47,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 12:56:47,516 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 12:56:47,516 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-09 12:56:47,516 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 12:56:47,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 12:56:47,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 12:56:47,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 12:56:47,905 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 12:56:47,905 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 12:56:47,906 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/qw2004-1.i [2020-11-09 12:56:47,998 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e4474522/64a7f57d780840d9a058eda956126f31/FLAG21da3af88 [2020-11-09 12:56:48,635 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 12:56:48,636 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-1.i [2020-11-09 12:56:48,660 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e4474522/64a7f57d780840d9a058eda956126f31/FLAG21da3af88 [2020-11-09 12:56:48,943 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e4474522/64a7f57d780840d9a058eda956126f31 [2020-11-09 12:56:48,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 12:56:48,955 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 12:56:48,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 12:56:48,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 12:56:48,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 12:56:48,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:56:48" (1/1) ... [2020-11-09 12:56:48,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ec0a835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:56:48, skipping insertion in model container [2020-11-09 12:56:48,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:56:48" (1/1) ... [2020-11-09 12:56:48,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 12:56:49,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 12:56:49,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:56:49,448 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 12:56:49,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:56:49,693 INFO L208 MainTranslator]: Completed translation [2020-11-09 12:56:49,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:56:49 WrapperNode [2020-11-09 12:56:49,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 12:56:49,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 12:56:49,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 12:56:49,697 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 12:56:49,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:56:49" (1/1) ... [2020-11-09 12:56:49,753 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:56:49" (1/1) ... [2020-11-09 12:56:49,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 12:56:49,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 12:56:49,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 12:56:49,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 12:56:49,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:56:49" (1/1) ... [2020-11-09 12:56:49,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:56:49" (1/1) ... [2020-11-09 12:56:49,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:56:49" (1/1) ... [2020-11-09 12:56:49,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:56:49" (1/1) ... [2020-11-09 12:56:49,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:56:49" (1/1) ... [2020-11-09 12:56:49,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:56:49" (1/1) ... [2020-11-09 12:56:49,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:56:49" (1/1) ... [2020-11-09 12:56:49,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 12:56:49,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 12:56:49,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 12:56:49,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 12:56:49,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:56:49" (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 [2020-11-09 12:56:49,960 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2020-11-09 12:56:49,960 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2020-11-09 12:56:49,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 12:56:49,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 12:56:49,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 12:56:49,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 12:56:49,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 12:56:49,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 12:56:49,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 12:56:49,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 12:56:49,966 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 12:56:50,563 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 12:56:50,563 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-11-09 12:56:50,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:56:50 BoogieIcfgContainer [2020-11-09 12:56:50,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 12:56:50,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 12:56:50,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 12:56:50,571 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 12:56:50,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 12:56:48" (1/3) ... [2020-11-09 12:56:50,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff7b03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:56:50, skipping insertion in model container [2020-11-09 12:56:50,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:56:49" (2/3) ... [2020-11-09 12:56:50,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff7b03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:56:50, skipping insertion in model container [2020-11-09 12:56:50,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:56:50" (3/3) ... [2020-11-09 12:56:50,574 INFO L111 eAbstractionObserver]: Analyzing ICFG qw2004-1.i [2020-11-09 12:56:50,590 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 12:56:50,590 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-09 12:56:50,594 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 12:56:50,595 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 12:56:50,623 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,624 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,624 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,624 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,624 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,625 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,625 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,625 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,625 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,626 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,626 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,626 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,626 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,626 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,627 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,627 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,627 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,627 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,627 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,627 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,628 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,628 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,628 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,628 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,628 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,629 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,629 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,629 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,629 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,629 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,630 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,630 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,630 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,630 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,631 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,631 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,631 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,631 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,631 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,632 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,632 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,632 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,632 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,632 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,633 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,633 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,633 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,633 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,634 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,634 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,634 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,634 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,634 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,635 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,635 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,635 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,635 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,636 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,636 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,636 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,638 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,639 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,639 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,639 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,639 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,639 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,639 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,640 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,640 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,640 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,640 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:56:50,644 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 12:56:50,657 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-09 12:56:50,680 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 12:56:50,680 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 12:56:50,680 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-09 12:56:50,680 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 12:56:50,681 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 12:56:50,681 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 12:56:50,681 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 12:56:50,681 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 12:56:50,694 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-09 12:56:50,696 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 95 transitions, 195 flow [2020-11-09 12:56:50,699 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 95 transitions, 195 flow [2020-11-09 12:56:50,702 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 95 transitions, 195 flow [2020-11-09 12:56:50,751 INFO L129 PetriNetUnfolder]: 7/94 cut-off events. [2020-11-09 12:56:50,751 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 12:56:50,756 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 94 events. 7/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 101 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 74. Up to 3 conditions per place. [2020-11-09 12:56:50,760 INFO L116 LiptonReduction]: Number of co-enabled transitions 2400 [2020-11-09 12:56:54,388 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 9, 1] term [2020-11-09 12:56:54,389 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-09 12:56:54,397 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 9, 1] term [2020-11-09 12:56:54,398 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-09 12:56:54,847 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 9, 1] term [2020-11-09 12:56:54,848 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-09 12:56:54,854 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 9, 1] term [2020-11-09 12:56:54,854 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-09 12:56:55,775 WARN L194 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2020-11-09 12:56:56,090 WARN L194 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2020-11-09 12:56:56,223 INFO L131 LiptonReduction]: Checked pairs total: 2510 [2020-11-09 12:56:56,224 INFO L133 LiptonReduction]: Total number of compositions: 106 [2020-11-09 12:56:56,238 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 14 transitions, 33 flow [2020-11-09 12:56:56,250 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 37 states. [2020-11-09 12:56:56,253 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-11-09 12:56:56,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-09 12:56:56,263 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:56:56,270 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-09 12:56:56,270 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:56:56,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:56:56,284 INFO L82 PathProgramCache]: Analyzing trace with hash 12149914, now seen corresponding path program 1 times [2020-11-09 12:56:56,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:56:56,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917685856] [2020-11-09 12:56:56,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:56:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:56:56,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:56:56,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917685856] [2020-11-09 12:56:56,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:56:56,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 12:56:56,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907489836] [2020-11-09 12:56:56,479 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 12:56:56,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:56:56,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 12:56:56,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:56:56,500 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 3 states. [2020-11-09 12:56:56,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:56:56,533 INFO L93 Difference]: Finished difference Result 33 states and 57 transitions. [2020-11-09 12:56:56,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 12:56:56,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-09 12:56:56,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:56:56,543 INFO L225 Difference]: With dead ends: 33 [2020-11-09 12:56:56,543 INFO L226 Difference]: Without dead ends: 13 [2020-11-09 12:56:56,544 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 [2020-11-09 12:56:56,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-11-09 12:56:56,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-11-09 12:56:56,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-09 12:56:56,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2020-11-09 12:56:56,578 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 4 [2020-11-09 12:56:56,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:56:56,578 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-11-09 12:56:56,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 12:56:56,579 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2020-11-09 12:56:56,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 12:56:56,579 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:56:56,579 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:56:56,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 12:56:56,580 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:56:56,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:56:56,581 INFO L82 PathProgramCache]: Analyzing trace with hash -2126994706, now seen corresponding path program 1 times [2020-11-09 12:56:56,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:56:56,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518582585] [2020-11-09 12:56:56,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:56:56,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:56:56,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:56:56,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518582585] [2020-11-09 12:56:56,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:56:56,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 12:56:56,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496143651] [2020-11-09 12:56:56,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 12:56:56,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:56:56,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 12:56:56,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-09 12:56:56,730 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 6 states. [2020-11-09 12:56:56,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:56:56,783 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2020-11-09 12:56:56,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 12:56:56,784 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2020-11-09 12:56:56,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:56:56,784 INFO L225 Difference]: With dead ends: 15 [2020-11-09 12:56:56,784 INFO L226 Difference]: Without dead ends: 11 [2020-11-09 12:56:56,785 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-09 12:56:56,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-11-09 12:56:56,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-11-09 12:56:56,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-09 12:56:56,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2020-11-09 12:56:56,788 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2020-11-09 12:56:56,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:56:56,788 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2020-11-09 12:56:56,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 12:56:56,788 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2020-11-09 12:56:56,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 12:56:56,789 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:56:56,789 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:56:56,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 12:56:56,789 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:56:56,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:56:56,790 INFO L82 PathProgramCache]: Analyzing trace with hash -426701370, now seen corresponding path program 2 times [2020-11-09 12:56:56,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:56:56,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623176719] [2020-11-09 12:56:56,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:56:56,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:56:56,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:56:56,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623176719] [2020-11-09 12:56:56,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:56:56,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 12:56:56,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835657190] [2020-11-09 12:56:56,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 12:56:56,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:56:56,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 12:56:56,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-09 12:56:56,870 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 6 states. [2020-11-09 12:56:56,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:56:56,906 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2020-11-09 12:56:56,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:56:56,906 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2020-11-09 12:56:56,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:56:56,907 INFO L225 Difference]: With dead ends: 7 [2020-11-09 12:56:56,907 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 12:56:56,907 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-09 12:56:56,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 12:56:56,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 12:56:56,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 12:56:56,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 12:56:56,908 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2020-11-09 12:56:56,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:56:56,908 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 12:56:56,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 12:56:56,909 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 12:56:56,909 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 12:56:56,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 12:56:56,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 12:56:56 BasicIcfg [2020-11-09 12:56:56,912 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 12:56:56,914 INFO L168 Benchmark]: Toolchain (without parser) took 7964.04 ms. Allocated memory was 163.6 MB in the beginning and 247.5 MB in the end (delta: 83.9 MB). Free memory was 136.8 MB in the beginning and 123.6 MB in the end (delta: 13.3 MB). Peak memory consumption was 98.2 MB. Max. memory is 8.0 GB. [2020-11-09 12:56:56,915 INFO L168 Benchmark]: CDTParser took 0.64 ms. Allocated memory is still 163.6 MB. Free memory is still 135.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 12:56:56,916 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.50 ms. Allocated memory is still 163.6 MB. Free memory was 136.2 MB in the beginning and 140.0 MB in the end (delta: -3.8 MB). Peak memory consumption was 29.3 MB. Max. memory is 8.0 GB. [2020-11-09 12:56:56,917 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.10 ms. Allocated memory is still 163.6 MB. Free memory was 140.0 MB in the beginning and 137.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:56:56,917 INFO L168 Benchmark]: Boogie Preprocessor took 61.98 ms. Allocated memory is still 163.6 MB. Free memory was 137.9 MB in the beginning and 136.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:56:56,918 INFO L168 Benchmark]: RCFGBuilder took 698.32 ms. Allocated memory is still 163.6 MB. Free memory was 136.3 MB in the beginning and 110.7 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2020-11-09 12:56:56,919 INFO L168 Benchmark]: TraceAbstraction took 6345.23 ms. Allocated memory was 163.6 MB in the beginning and 247.5 MB in the end (delta: 83.9 MB). Free memory was 110.1 MB in the beginning and 123.6 MB in the end (delta: -13.4 MB). Peak memory consumption was 71.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:56:56,924 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64 ms. Allocated memory is still 163.6 MB. Free memory is still 135.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 736.50 ms. Allocated memory is still 163.6 MB. Free memory was 136.2 MB in the beginning and 140.0 MB in the end (delta: -3.8 MB). Peak memory consumption was 29.3 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 106.10 ms. Allocated memory is still 163.6 MB. Free memory was 140.0 MB in the beginning and 137.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 61.98 ms. Allocated memory is still 163.6 MB. Free memory was 137.9 MB in the beginning and 136.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 698.32 ms. Allocated memory is still 163.6 MB. Free memory was 136.3 MB in the beginning and 110.7 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6345.23 ms. Allocated memory was 163.6 MB in the beginning and 247.5 MB in the end (delta: 83.9 MB). Free memory was 110.1 MB in the beginning and 123.6 MB in the end (delta: -13.4 MB). Peak memory consumption was 71.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1721 VarBasedMoverChecksPositive, 38 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 32 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.5s, 92 PlacesBefore, 17 PlacesAfterwards, 95 TransitionsBefore, 14 TransitionsAfterwards, 2400 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 63 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 6 ChoiceCompositions, 106 TotalNumberOfCompositions, 2510 MoverChecksTotal - PositiveResult [Line: 683]: 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 2 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.5s, HoareTripleCheckerStatistics: 23 SDtfs, 13 SDslu, 23 SDs, 0 SdLazy, 40 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 531 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...