/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-lit/qw2004-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-17 01:41:42,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-17 01:41:42,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-17 01:41:42,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-17 01:41:42,547 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-17 01:41:42,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-17 01:41:42,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-17 01:41:42,552 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-17 01:41:42,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-17 01:41:42,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-17 01:41:42,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-17 01:41:42,558 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-17 01:41:42,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-17 01:41:42,559 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-17 01:41:42,560 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-17 01:41:42,562 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-17 01:41:42,563 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-17 01:41:42,564 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-17 01:41:42,565 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-17 01:41:42,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-17 01:41:42,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-17 01:41:42,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-17 01:41:42,572 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-17 01:41:42,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-17 01:41:42,575 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-17 01:41:42,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-17 01:41:42,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-17 01:41:42,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-17 01:41:42,590 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 01:41:42,617 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-17 01:41:42,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-17 01:41:42,619 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-17 01:41:42,619 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-17 01:41:42,619 INFO L138 SettingsManager]: * Use SBE=true [2020-09-17 01:41:42,620 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-17 01:41:42,620 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-17 01:41:42,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-17 01:41:42,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-17 01:41:42,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-17 01:41:42,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-17 01:41:42,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-17 01:41:42,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-17 01:41:42,621 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-17 01:41:42,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-17 01:41:42,622 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-17 01:41:42,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-17 01:41:42,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-17 01:41:42,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-17 01:41:42,623 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-17 01:41:42,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-17 01:41:42,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 01:41:42,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-17 01:41:42,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-17 01:41:42,624 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-17 01:41:42,624 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-17 01:41:42,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-17 01:41:42,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-17 01:41:42,625 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-17 01:41:42,625 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-17 01:41:43,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-17 01:41:43,121 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-17 01:41:43,126 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-17 01:41:43,127 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-17 01:41:43,128 INFO L275 PluginConnector]: CDTParser initialized [2020-09-17 01:41:43,129 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/qw2004-1.i [2020-09-17 01:41:43,219 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/680d818ac/a4f56e5b058d45db9f5630cf353114d6/FLAG8d7060631 [2020-09-17 01:41:43,861 INFO L306 CDTParser]: Found 1 translation units. [2020-09-17 01:41:43,862 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-1.i [2020-09-17 01:41:43,883 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/680d818ac/a4f56e5b058d45db9f5630cf353114d6/FLAG8d7060631 [2020-09-17 01:41:44,069 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/680d818ac/a4f56e5b058d45db9f5630cf353114d6 [2020-09-17 01:41:44,081 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-17 01:41:44,087 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-17 01:41:44,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-17 01:41:44,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-17 01:41:44,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-17 01:41:44,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 01:41:44" (1/1) ... [2020-09-17 01:41:44,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1492e2ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:41:44, skipping insertion in model container [2020-09-17 01:41:44,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 01:41:44" (1/1) ... [2020-09-17 01:41:44,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-17 01:41:44,157 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-17 01:41:44,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 01:41:44,710 INFO L203 MainTranslator]: Completed pre-run [2020-09-17 01:41:44,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 01:41:44,868 INFO L208 MainTranslator]: Completed translation [2020-09-17 01:41:44,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:41:44 WrapperNode [2020-09-17 01:41:44,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-17 01:41:44,870 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-17 01:41:44,870 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-17 01:41:44,870 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-17 01:41:44,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:41:44" (1/1) ... [2020-09-17 01:41:44,902 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:41:44" (1/1) ... [2020-09-17 01:41:44,936 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-17 01:41:44,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-17 01:41:44,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-17 01:41:44,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-17 01:41:44,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:41:44" (1/1) ... [2020-09-17 01:41:44,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:41:44" (1/1) ... [2020-09-17 01:41:44,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:41:44" (1/1) ... [2020-09-17 01:41:44,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:41:44" (1/1) ... [2020-09-17 01:41:44,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:41:44" (1/1) ... [2020-09-17 01:41:44,964 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:41:44" (1/1) ... [2020-09-17 01:41:44,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:41:44" (1/1) ... [2020-09-17 01:41:44,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-17 01:41:44,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-17 01:41:44,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-17 01:41:44,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-17 01:41:44,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:41:44" (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 01:41:45,068 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2020-09-17 01:41:45,068 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2020-09-17 01:41:45,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-17 01:41:45,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-17 01:41:45,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-17 01:41:45,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-17 01:41:45,070 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-17 01:41:45,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-17 01:41:45,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-17 01:41:45,074 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 01:41:45,537 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-17 01:41:45,537 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-09-17 01:41:45,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 01:41:45 BoogieIcfgContainer [2020-09-17 01:41:45,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-17 01:41:45,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-17 01:41:45,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-17 01:41:45,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-17 01:41:45,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.09 01:41:44" (1/3) ... [2020-09-17 01:41:45,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@209b5894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 01:41:45, skipping insertion in model container [2020-09-17 01:41:45,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:41:44" (2/3) ... [2020-09-17 01:41:45,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@209b5894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 01:41:45, skipping insertion in model container [2020-09-17 01:41:45,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 01:41:45" (3/3) ... [2020-09-17 01:41:45,554 INFO L109 eAbstractionObserver]: Analyzing ICFG qw2004-1.i [2020-09-17 01:41:45,567 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-17 01:41:45,567 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-17 01:41:45,577 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-17 01:41:45,578 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-17 01:41:45,609 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,610 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,610 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,610 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,611 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,611 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,611 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,611 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,612 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,612 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,612 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,612 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,613 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,613 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,613 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,613 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,614 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,614 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,614 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,615 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,615 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,615 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,616 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,616 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,616 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,616 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,616 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,617 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,617 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,617 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,622 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,623 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,623 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,623 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,624 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,624 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,624 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,624 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,625 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,625 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,625 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:45,652 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-09-17 01:41:45,682 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 01:41:45,682 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 01:41:45,682 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-17 01:41:45,682 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-17 01:41:45,683 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 01:41:45,683 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 01:41:45,683 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 01:41:45,683 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 01:41:45,704 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 86 transitions, 177 flow [2020-09-17 01:41:45,707 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 84 places, 86 transitions, 177 flow [2020-09-17 01:41:45,762 INFO L129 PetriNetUnfolder]: 6/85 cut-off events. [2020-09-17 01:41:45,762 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 01:41:45,769 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 85 events. 6/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 69. Up to 3 conditions per place. [2020-09-17 01:41:45,773 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 84 places, 86 transitions, 177 flow [2020-09-17 01:41:45,797 INFO L129 PetriNetUnfolder]: 6/85 cut-off events. [2020-09-17 01:41:45,798 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 01:41:45,799 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 85 events. 6/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 69. Up to 3 conditions per place. [2020-09-17 01:41:45,802 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2160 [2020-09-17 01:41:45,803 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-17 01:41:48,331 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 11, 1] term [2020-09-17 01:41:48,331 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-09-17 01:41:48,337 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 11, 1] term [2020-09-17 01:41:48,338 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-09-17 01:41:48,385 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 11, 1] term [2020-09-17 01:41:48,385 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-09-17 01:41:48,395 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 11, 1] term [2020-09-17 01:41:48,395 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-09-17 01:41:48,409 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2372 [2020-09-17 01:41:48,409 INFO L214 etLargeBlockEncoding]: Total number of compositions: 96 [2020-09-17 01:41:48,415 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 16 places, 13 transitions, 31 flow [2020-09-17 01:41:48,425 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 32 states. [2020-09-17 01:41:48,428 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-09-17 01:41:48,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-09-17 01:41:48,436 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:41:48,437 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-09-17 01:41:48,437 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:41:48,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:41:48,445 INFO L82 PathProgramCache]: Analyzing trace with hash 11174652, now seen corresponding path program 1 times [2020-09-17 01:41:48,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:41:48,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153634602] [2020-09-17 01:41:48,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:41:48,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:41:48,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:41:48,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153634602] [2020-09-17 01:41:48,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:41:48,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-17 01:41:48,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435747831] [2020-09-17 01:41:48,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 01:41:48,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:41:48,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 01:41:48,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 01:41:48,688 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 3 states. [2020-09-17 01:41:48,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:41:48,736 INFO L93 Difference]: Finished difference Result 31 states and 50 transitions. [2020-09-17 01:41:48,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 01:41:48,738 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-09-17 01:41:48,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:41:48,755 INFO L225 Difference]: With dead ends: 31 [2020-09-17 01:41:48,755 INFO L226 Difference]: Without dead ends: 13 [2020-09-17 01:41:48,758 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 01:41:48,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-09-17 01:41:48,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-09-17 01:41:48,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-09-17 01:41:48,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2020-09-17 01:41:48,813 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 4 [2020-09-17 01:41:48,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:41:48,814 INFO L479 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-09-17 01:41:48,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 01:41:48,822 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2020-09-17 01:41:48,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-17 01:41:48,823 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:41:48,824 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:41:48,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-17 01:41:48,824 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:41:48,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:41:48,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1422714602, now seen corresponding path program 1 times [2020-09-17 01:41:48,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:41:48,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240823904] [2020-09-17 01:41:48,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:41:48,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:41:49,019 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 01:41:49,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240823904] [2020-09-17 01:41:49,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:41:49,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 01:41:49,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631359693] [2020-09-17 01:41:49,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 01:41:49,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:41:49,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 01:41:49,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:41:49,023 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 7 states. [2020-09-17 01:41:49,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:41:49,102 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2020-09-17 01:41:49,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-17 01:41:49,102 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2020-09-17 01:41:49,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:41:49,103 INFO L225 Difference]: With dead ends: 17 [2020-09-17 01:41:49,103 INFO L226 Difference]: Without dead ends: 9 [2020-09-17 01:41:49,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-09-17 01:41:49,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-09-17 01:41:49,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-09-17 01:41:49,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-09-17 01:41:49,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2020-09-17 01:41:49,107 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2020-09-17 01:41:49,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:41:49,108 INFO L479 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2020-09-17 01:41:49,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 01:41:49,108 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2020-09-17 01:41:49,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-17 01:41:49,108 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:41:49,109 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:41:49,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-17 01:41:49,109 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:41:49,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:41:49,110 INFO L82 PathProgramCache]: Analyzing trace with hash -786886622, now seen corresponding path program 2 times [2020-09-17 01:41:49,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:41:49,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197407760] [2020-09-17 01:41:49,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:41:49,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:41:49,222 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 01:41:49,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197407760] [2020-09-17 01:41:49,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:41:49,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 01:41:49,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089593547] [2020-09-17 01:41:49,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-17 01:41:49,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:41:49,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-17 01:41:49,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-17 01:41:49,225 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand 6 states. [2020-09-17 01:41:49,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:41:49,245 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2020-09-17 01:41:49,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 01:41:49,245 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2020-09-17 01:41:49,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:41:49,246 INFO L225 Difference]: With dead ends: 7 [2020-09-17 01:41:49,246 INFO L226 Difference]: Without dead ends: 0 [2020-09-17 01:41:49,246 INFO L675 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 [2020-09-17 01:41:49,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-17 01:41:49,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-17 01:41:49,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-17 01:41:49,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-17 01:41:49,247 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2020-09-17 01:41:49,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:41:49,248 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-17 01:41:49,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-17 01:41:49,248 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-17 01:41:49,248 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-17 01:41:49,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-17 01:41:49,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.09 01:41:49 BasicIcfg [2020-09-17 01:41:49,253 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-17 01:41:49,257 INFO L168 Benchmark]: Toolchain (without parser) took 5172.71 ms. Allocated memory was 138.4 MB in the beginning and 250.6 MB in the end (delta: 112.2 MB). Free memory was 100.8 MB in the beginning and 161.9 MB in the end (delta: -61.1 MB). Peak memory consumption was 51.1 MB. Max. memory is 7.1 GB. [2020-09-17 01:41:49,258 INFO L168 Benchmark]: CDTParser took 0.59 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-17 01:41:49,259 INFO L168 Benchmark]: CACSL2BoogieTranslator took 781.12 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 100.1 MB in the beginning and 160.5 MB in the end (delta: -60.3 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2020-09-17 01:41:49,260 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.74 ms. Allocated memory is still 202.9 MB. Free memory was 160.5 MB in the beginning and 158.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-09-17 01:41:49,261 INFO L168 Benchmark]: Boogie Preprocessor took 33.99 ms. Allocated memory is still 202.9 MB. Free memory was 158.2 MB in the beginning and 156.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2020-09-17 01:41:49,262 INFO L168 Benchmark]: RCFGBuilder took 573.19 ms. Allocated memory is still 202.9 MB. Free memory was 156.8 MB in the beginning and 130.2 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2020-09-17 01:41:49,263 INFO L168 Benchmark]: TraceAbstraction took 3708.39 ms. Allocated memory was 202.9 MB in the beginning and 250.6 MB in the end (delta: 47.7 MB). Free memory was 130.2 MB in the beginning and 161.9 MB in the end (delta: -31.7 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2020-09-17 01:41:49,268 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 781.12 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 100.1 MB in the beginning and 160.5 MB in the end (delta: -60.3 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 65.74 ms. Allocated memory is still 202.9 MB. Free memory was 160.5 MB in the beginning and 158.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.99 ms. Allocated memory is still 202.9 MB. Free memory was 158.2 MB in the beginning and 156.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 573.19 ms. Allocated memory is still 202.9 MB. Free memory was 156.8 MB in the beginning and 130.2 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3708.39 ms. Allocated memory was 202.9 MB in the beginning and 250.6 MB in the end (delta: 47.7 MB). Free memory was 130.2 MB in the beginning and 161.9 MB in the end (delta: -31.7 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.7s, 84 ProgramPointsBefore, 16 ProgramPointsAfterwards, 86 TransitionsBefore, 13 TransitionsAfterwards, 2160 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 21 ConcurrentYvCompositions, 5 ChoiceCompositions, 1329 VarBasedMoverChecksPositive, 34 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 32 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 2372 CheckedPairsTotal, 96 TotalNumberOfCompositions - PositiveResult [Line: 679]: 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, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 21 SDtfs, 19 SDslu, 16 SDs, 0 SdLazy, 45 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 601 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...