/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 11:19:47,634 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 11:19:47,637 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 11:19:47,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 11:19:47,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 11:19:47,660 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 11:19:47,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 11:19:47,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 11:19:47,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 11:19:47,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 11:19:47,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 11:19:47,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 11:19:47,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 11:19:47,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 11:19:47,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 11:19:47,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 11:19:47,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 11:19:47,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 11:19:47,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 11:19:47,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 11:19:47,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 11:19:47,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 11:19:47,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 11:19:47,680 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 11:19:47,682 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 11:19:47,683 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 11:19:47,683 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 11:19:47,684 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 11:19:47,684 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 11:19:47,685 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 11:19:47,685 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 11:19:47,686 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 11:19:47,687 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 11:19:47,687 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 11:19:47,688 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 11:19:47,688 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 11:19:47,689 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 11:19:47,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 11:19:47,690 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 11:19:47,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 11:19:47,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 11:19:47,692 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-16 11:19:47,723 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 11:19:47,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 11:19:47,725 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 11:19:47,727 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 11:19:47,728 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 11:19:47,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 11:19:47,728 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 11:19:47,728 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 11:19:47,728 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 11:19:47,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 11:19:47,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 11:19:47,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 11:19:47,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 11:19:47,729 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 11:19:47,729 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 11:19:47,730 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 11:19:47,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 11:19:47,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 11:19:47,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 11:19:47,732 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 11:19:47,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 11:19:47,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:19:47,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 11:19:47,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 11:19:47,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 11:19:47,734 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 11:19:47,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 11:19:47,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 11:19:47,734 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-16 11:19:47,734 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 11:19:48,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 11:19:48,069 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 11:19:48,073 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 11:19:48,074 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 11:19:48,074 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 11:19:48,075 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.oepc.i [2020-10-16 11:19:48,137 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7dc292b83/762356ca356c4feeb2a5c554442b6af0/FLAG6d1a6f23d [2020-10-16 11:19:48,695 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 11:19:48,696 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe017_tso.oepc.i [2020-10-16 11:19:48,718 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7dc292b83/762356ca356c4feeb2a5c554442b6af0/FLAG6d1a6f23d [2020-10-16 11:19:49,052 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7dc292b83/762356ca356c4feeb2a5c554442b6af0 [2020-10-16 11:19:49,064 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 11:19:49,066 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 11:19:49,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 11:19:49,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 11:19:49,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 11:19:49,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:19:49" (1/1) ... [2020-10-16 11:19:49,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@723dd9ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:19:49, skipping insertion in model container [2020-10-16 11:19:49,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:19:49" (1/1) ... [2020-10-16 11:19:49,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 11:19:49,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 11:19:49,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:19:49,635 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 11:19:49,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:19:49,770 INFO L208 MainTranslator]: Completed translation [2020-10-16 11:19:49,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:19:49 WrapperNode [2020-10-16 11:19:49,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 11:19:49,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 11:19:49,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 11:19:49,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 11:19:49,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:19:49" (1/1) ... [2020-10-16 11:19:49,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:19:49" (1/1) ... [2020-10-16 11:19:49,819 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 11:19:49,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 11:19:49,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 11:19:49,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 11:19:49,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:19:49" (1/1) ... [2020-10-16 11:19:49,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:19:49" (1/1) ... [2020-10-16 11:19:49,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:19:49" (1/1) ... [2020-10-16 11:19:49,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:19:49" (1/1) ... [2020-10-16 11:19:49,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:19:49" (1/1) ... [2020-10-16 11:19:49,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:19:49" (1/1) ... [2020-10-16 11:19:49,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:19:49" (1/1) ... [2020-10-16 11:19:49,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 11:19:49,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 11:19:49,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 11:19:49,850 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 11:19:49,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:19:49" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:19:49,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 11:19:49,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 11:19:49,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 11:19:49,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 11:19:49,915 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 11:19:49,916 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 11:19:49,916 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 11:19:49,916 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 11:19:49,916 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 11:19:49,916 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 11:19:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 11:19:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 11:19:49,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 11:19:49,919 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 11:19:50,257 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 11:19:50,257 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 11:19:50,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:19:50 BoogieIcfgContainer [2020-10-16 11:19:50,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 11:19:50,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 11:19:50,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 11:19:50,266 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 11:19:50,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:19:49" (1/3) ... [2020-10-16 11:19:50,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bf63909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:19:50, skipping insertion in model container [2020-10-16 11:19:50,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:19:49" (2/3) ... [2020-10-16 11:19:50,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bf63909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:19:50, skipping insertion in model container [2020-10-16 11:19:50,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:19:50" (3/3) ... [2020-10-16 11:19:50,271 INFO L111 eAbstractionObserver]: Analyzing ICFG safe017_tso.oepc.i [2020-10-16 11:19:50,297 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 11:19:50,298 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 11:19:50,304 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 11:19:50,305 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 11:19:50,336 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,336 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,337 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,337 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,338 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,338 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,339 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,339 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,339 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,342 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,343 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,343 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,344 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,344 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,344 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,344 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,345 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,345 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,350 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,350 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,350 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,351 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,358 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,359 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,359 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,359 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,362 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,362 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,363 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,363 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:50,365 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 11:19:50,379 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 11:19:50,398 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:19:50,399 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:19:50,399 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 11:19:50,399 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:19:50,399 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:19:50,399 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:19:50,399 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:19:50,400 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:19:50,412 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 11:19:50,414 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 67 transitions, 149 flow [2020-10-16 11:19:50,416 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 67 transitions, 149 flow [2020-10-16 11:19:50,418 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 75 places, 67 transitions, 149 flow [2020-10-16 11:19:50,462 INFO L129 PetriNetUnfolder]: 2/64 cut-off events. [2020-10-16 11:19:50,463 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 11:19:50,468 INFO L80 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 64 events. 2/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-16 11:19:50,471 INFO L117 LiptonReduction]: Number of co-enabled transitions 1178 [2020-10-16 11:19:51,963 INFO L132 LiptonReduction]: Checked pairs total: 1902 [2020-10-16 11:19:51,964 INFO L134 LiptonReduction]: Total number of compositions: 54 [2020-10-16 11:19:51,972 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-10-16 11:19:51,999 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-10-16 11:19:52,002 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-10-16 11:19:52,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 11:19:52,010 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:19:52,010 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:19:52,011 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:19:52,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:19:52,017 INFO L82 PathProgramCache]: Analyzing trace with hash -540517404, now seen corresponding path program 1 times [2020-10-16 11:19:52,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:19:52,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15384930] [2020-10-16 11:19:52,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:19:52,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:19:52,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:19:52,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15384930] [2020-10-16 11:19:52,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:19:52,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 11:19:52,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811371459] [2020-10-16 11:19:52,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:19:52,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:19:52,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:19:52,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:19:52,273 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-10-16 11:19:52,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:19:52,315 INFO L93 Difference]: Finished difference Result 220 states and 612 transitions. [2020-10-16 11:19:52,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:19:52,317 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 11:19:52,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:19:52,343 INFO L225 Difference]: With dead ends: 220 [2020-10-16 11:19:52,343 INFO L226 Difference]: Without dead ends: 172 [2020-10-16 11:19:52,345 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:19:52,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-10-16 11:19:52,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2020-10-16 11:19:52,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-10-16 11:19:52,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 460 transitions. [2020-10-16 11:19:52,420 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 460 transitions. Word has length 8 [2020-10-16 11:19:52,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:19:52,421 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 460 transitions. [2020-10-16 11:19:52,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:19:52,422 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 460 transitions. [2020-10-16 11:19:52,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 11:19:52,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:19:52,423 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:19:52,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 11:19:52,424 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:19:52,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:19:52,424 INFO L82 PathProgramCache]: Analyzing trace with hash 533202091, now seen corresponding path program 1 times [2020-10-16 11:19:52,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:19:52,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301463496] [2020-10-16 11:19:52,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:19:52,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:19:52,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:19:52,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301463496] [2020-10-16 11:19:52,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:19:52,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 11:19:52,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060387521] [2020-10-16 11:19:52,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:19:52,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:19:52,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:19:52,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:19:52,521 INFO L87 Difference]: Start difference. First operand 172 states and 460 transitions. Second operand 3 states. [2020-10-16 11:19:52,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:19:52,535 INFO L93 Difference]: Finished difference Result 166 states and 438 transitions. [2020-10-16 11:19:52,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:19:52,536 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 11:19:52,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:19:52,538 INFO L225 Difference]: With dead ends: 166 [2020-10-16 11:19:52,539 INFO L226 Difference]: Without dead ends: 166 [2020-10-16 11:19:52,540 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:19:52,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-10-16 11:19:52,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-10-16 11:19:52,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-16 11:19:52,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 438 transitions. [2020-10-16 11:19:52,566 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 438 transitions. Word has length 9 [2020-10-16 11:19:52,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:19:52,566 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 438 transitions. [2020-10-16 11:19:52,567 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:19:52,567 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 438 transitions. [2020-10-16 11:19:52,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 11:19:52,570 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:19:52,570 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:19:52,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 11:19:52,571 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:19:52,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:19:52,571 INFO L82 PathProgramCache]: Analyzing trace with hash -650605017, now seen corresponding path program 1 times [2020-10-16 11:19:52,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:19:52,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257248250] [2020-10-16 11:19:52,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:19:52,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:19:52,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:19:52,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257248250] [2020-10-16 11:19:52,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:19:52,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 11:19:52,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515833444] [2020-10-16 11:19:52,672 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:19:52,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:19:52,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:19:52,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:19:52,673 INFO L87 Difference]: Start difference. First operand 166 states and 438 transitions. Second operand 3 states. [2020-10-16 11:19:52,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:19:52,690 INFO L93 Difference]: Finished difference Result 158 states and 412 transitions. [2020-10-16 11:19:52,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:19:52,691 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-16 11:19:52,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:19:52,694 INFO L225 Difference]: With dead ends: 158 [2020-10-16 11:19:52,694 INFO L226 Difference]: Without dead ends: 158 [2020-10-16 11:19:52,695 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:19:52,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-16 11:19:52,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2020-10-16 11:19:52,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-10-16 11:19:52,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 412 transitions. [2020-10-16 11:19:52,713 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 412 transitions. Word has length 10 [2020-10-16 11:19:52,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:19:52,714 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 412 transitions. [2020-10-16 11:19:52,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:19:52,714 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 412 transitions. [2020-10-16 11:19:52,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 11:19:52,715 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:19:52,716 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:19:52,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 11:19:52,716 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:19:52,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:19:52,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1305380691, now seen corresponding path program 1 times [2020-10-16 11:19:52,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:19:52,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877622240] [2020-10-16 11:19:52,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:19:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:19:52,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:19:52,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877622240] [2020-10-16 11:19:52,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:19:52,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:19:52,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520437647] [2020-10-16 11:19:52,767 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:19:52,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:19:52,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:19:52,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:19:52,768 INFO L87 Difference]: Start difference. First operand 158 states and 412 transitions. Second operand 4 states. [2020-10-16 11:19:52,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:19:52,792 INFO L93 Difference]: Finished difference Result 218 states and 560 transitions. [2020-10-16 11:19:52,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:19:52,793 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-16 11:19:52,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:19:52,795 INFO L225 Difference]: With dead ends: 218 [2020-10-16 11:19:52,795 INFO L226 Difference]: Without dead ends: 146 [2020-10-16 11:19:52,795 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:19:52,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-16 11:19:52,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-10-16 11:19:52,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-16 11:19:52,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 370 transitions. [2020-10-16 11:19:52,810 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 370 transitions. Word has length 11 [2020-10-16 11:19:52,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:19:52,810 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 370 transitions. [2020-10-16 11:19:52,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:19:52,811 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 370 transitions. [2020-10-16 11:19:52,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 11:19:52,812 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:19:52,812 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:19:52,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 11:19:52,812 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:19:52,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:19:52,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1306080051, now seen corresponding path program 2 times [2020-10-16 11:19:52,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:19:52,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824310288] [2020-10-16 11:19:52,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:19:52,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:19:52,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:19:52,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824310288] [2020-10-16 11:19:52,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:19:52,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:19:52,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290778566] [2020-10-16 11:19:52,897 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:19:52,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:19:52,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:19:52,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:19:52,898 INFO L87 Difference]: Start difference. First operand 146 states and 370 transitions. Second operand 4 states. [2020-10-16 11:19:52,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:19:52,929 INFO L93 Difference]: Finished difference Result 167 states and 388 transitions. [2020-10-16 11:19:52,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:19:52,930 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-16 11:19:52,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:19:52,932 INFO L225 Difference]: With dead ends: 167 [2020-10-16 11:19:52,932 INFO L226 Difference]: Without dead ends: 125 [2020-10-16 11:19:52,932 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:19:52,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-16 11:19:52,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-10-16 11:19:52,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-16 11:19:52,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 288 transitions. [2020-10-16 11:19:52,943 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 288 transitions. Word has length 11 [2020-10-16 11:19:52,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:19:52,944 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 288 transitions. [2020-10-16 11:19:52,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:19:52,944 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 288 transitions. [2020-10-16 11:19:52,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 11:19:52,945 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:19:52,945 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:19:52,946 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 11:19:52,946 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:19:52,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:19:52,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1819207960, now seen corresponding path program 1 times [2020-10-16 11:19:52,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:19:52,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975887771] [2020-10-16 11:19:52,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:19:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:19:53,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:19:53,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975887771] [2020-10-16 11:19:53,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:19:53,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:19:53,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578152859] [2020-10-16 11:19:53,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:19:53,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:19:53,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:19:53,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:19:53,046 INFO L87 Difference]: Start difference. First operand 125 states and 288 transitions. Second operand 5 states. [2020-10-16 11:19:53,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:19:53,098 INFO L93 Difference]: Finished difference Result 121 states and 257 transitions. [2020-10-16 11:19:53,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 11:19:53,099 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-16 11:19:53,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:19:53,100 INFO L225 Difference]: With dead ends: 121 [2020-10-16 11:19:53,101 INFO L226 Difference]: Without dead ends: 93 [2020-10-16 11:19:53,101 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 11:19:53,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-16 11:19:53,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-10-16 11:19:53,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-10-16 11:19:53,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 192 transitions. [2020-10-16 11:19:53,108 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 192 transitions. Word has length 12 [2020-10-16 11:19:53,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:19:53,108 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 192 transitions. [2020-10-16 11:19:53,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:19:53,133 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 192 transitions. [2020-10-16 11:19:53,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 11:19:53,134 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:19:53,134 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:19:53,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 11:19:53,134 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:19:53,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:19:53,137 INFO L82 PathProgramCache]: Analyzing trace with hash 589619789, now seen corresponding path program 1 times [2020-10-16 11:19:53,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:19:53,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240000125] [2020-10-16 11:19:53,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:19:53,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:19:53,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:19:53,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240000125] [2020-10-16 11:19:53,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:19:53,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:19:53,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630228654] [2020-10-16 11:19:53,194 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:19:53,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:19:53,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:19:53,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:19:53,195 INFO L87 Difference]: Start difference. First operand 93 states and 192 transitions. Second operand 3 states. [2020-10-16 11:19:53,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:19:53,210 INFO L93 Difference]: Finished difference Result 110 states and 218 transitions. [2020-10-16 11:19:53,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:19:53,211 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-16 11:19:53,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:19:53,212 INFO L225 Difference]: With dead ends: 110 [2020-10-16 11:19:53,212 INFO L226 Difference]: Without dead ends: 88 [2020-10-16 11:19:53,212 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:19:53,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-10-16 11:19:53,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 86. [2020-10-16 11:19:53,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-10-16 11:19:53,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 169 transitions. [2020-10-16 11:19:53,228 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 169 transitions. Word has length 13 [2020-10-16 11:19:53,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:19:53,228 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 169 transitions. [2020-10-16 11:19:53,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:19:53,228 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 169 transitions. [2020-10-16 11:19:53,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 11:19:53,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:19:53,229 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:19:53,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 11:19:53,230 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:19:53,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:19:53,230 INFO L82 PathProgramCache]: Analyzing trace with hash 205369494, now seen corresponding path program 1 times [2020-10-16 11:19:53,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:19:53,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344350789] [2020-10-16 11:19:53,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:19:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:19:53,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:19:53,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344350789] [2020-10-16 11:19:53,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:19:53,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:19:53,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929192031] [2020-10-16 11:19:53,284 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:19:53,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:19:53,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:19:53,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:19:53,286 INFO L87 Difference]: Start difference. First operand 86 states and 169 transitions. Second operand 3 states. [2020-10-16 11:19:53,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:19:53,301 INFO L93 Difference]: Finished difference Result 104 states and 195 transitions. [2020-10-16 11:19:53,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:19:53,301 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-16 11:19:53,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:19:53,302 INFO L225 Difference]: With dead ends: 104 [2020-10-16 11:19:53,302 INFO L226 Difference]: Without dead ends: 66 [2020-10-16 11:19:53,303 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:19:53,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-16 11:19:53,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 65. [2020-10-16 11:19:53,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-16 11:19:53,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 111 transitions. [2020-10-16 11:19:53,308 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 111 transitions. Word has length 14 [2020-10-16 11:19:53,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:19:53,308 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 111 transitions. [2020-10-16 11:19:53,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:19:53,309 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 111 transitions. [2020-10-16 11:19:53,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 11:19:53,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:19:53,312 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:19:53,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 11:19:53,312 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:19:53,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:19:53,313 INFO L82 PathProgramCache]: Analyzing trace with hash -610616562, now seen corresponding path program 2 times [2020-10-16 11:19:53,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:19:53,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264825220] [2020-10-16 11:19:53,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:19:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:19:53,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:19:53,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264825220] [2020-10-16 11:19:53,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:19:53,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:19:53,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107036316] [2020-10-16 11:19:53,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:19:53,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:19:53,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:19:53,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:19:53,386 INFO L87 Difference]: Start difference. First operand 65 states and 111 transitions. Second operand 4 states. [2020-10-16 11:19:53,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:19:53,416 INFO L93 Difference]: Finished difference Result 71 states and 116 transitions. [2020-10-16 11:19:53,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:19:53,416 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-16 11:19:53,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:19:53,417 INFO L225 Difference]: With dead ends: 71 [2020-10-16 11:19:53,418 INFO L226 Difference]: Without dead ends: 64 [2020-10-16 11:19:53,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:19:53,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-10-16 11:19:53,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 63. [2020-10-16 11:19:53,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-10-16 11:19:53,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 106 transitions. [2020-10-16 11:19:53,429 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 106 transitions. Word has length 14 [2020-10-16 11:19:53,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:19:53,429 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 106 transitions. [2020-10-16 11:19:53,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:19:53,430 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 106 transitions. [2020-10-16 11:19:53,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 11:19:53,431 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:19:53,431 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:19:53,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 11:19:53,431 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:19:53,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:19:53,432 INFO L82 PathProgramCache]: Analyzing trace with hash -375565572, now seen corresponding path program 3 times [2020-10-16 11:19:53,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:19:53,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242875150] [2020-10-16 11:19:53,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:19:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:19:53,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:19:53,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242875150] [2020-10-16 11:19:53,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:19:53,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 11:19:53,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993263223] [2020-10-16 11:19:53,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 11:19:53,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:19:53,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 11:19:53,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 11:19:53,542 INFO L87 Difference]: Start difference. First operand 63 states and 106 transitions. Second operand 6 states. [2020-10-16 11:19:53,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:19:53,570 INFO L93 Difference]: Finished difference Result 58 states and 100 transitions. [2020-10-16 11:19:53,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 11:19:53,571 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-16 11:19:53,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:19:53,571 INFO L225 Difference]: With dead ends: 58 [2020-10-16 11:19:53,571 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 11:19:53,572 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-16 11:19:53,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 11:19:53,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 11:19:53,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 11:19:53,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 11:19:53,573 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-10-16 11:19:53,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:19:53,573 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 11:19:53,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 11:19:53,573 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 11:19:53,573 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 11:19:53,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 11:19:53,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:19:53 BasicIcfg [2020-10-16 11:19:53,577 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 11:19:53,580 INFO L168 Benchmark]: Toolchain (without parser) took 4513.51 ms. Allocated memory was 146.3 MB in the beginning and 248.0 MB in the end (delta: 101.7 MB). Free memory was 100.3 MB in the beginning and 172.1 MB in the end (delta: -71.8 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. [2020-10-16 11:19:53,580 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 11:19:53,581 INFO L168 Benchmark]: CACSL2BoogieTranslator took 701.24 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 100.1 MB in the beginning and 159.5 MB in the end (delta: -59.4 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2020-10-16 11:19:53,582 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.54 ms. Allocated memory is still 202.4 MB. Free memory was 159.5 MB in the beginning and 157.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 11:19:53,583 INFO L168 Benchmark]: Boogie Preprocessor took 30.12 ms. Allocated memory is still 202.4 MB. Free memory was 157.5 MB in the beginning and 156.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 11:19:53,584 INFO L168 Benchmark]: RCFGBuilder took 410.33 ms. Allocated memory is still 202.4 MB. Free memory was 155.5 MB in the beginning and 133.8 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2020-10-16 11:19:53,585 INFO L168 Benchmark]: TraceAbstraction took 3315.40 ms. Allocated memory was 202.4 MB in the beginning and 248.0 MB in the end (delta: 45.6 MB). Free memory was 133.2 MB in the beginning and 172.1 MB in the end (delta: -38.9 MB). Peak memory consumption was 6.7 MB. Max. memory is 7.1 GB. [2020-10-16 11:19:53,589 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 701.24 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 100.1 MB in the beginning and 159.5 MB in the end (delta: -59.4 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.54 ms. Allocated memory is still 202.4 MB. Free memory was 159.5 MB in the beginning and 157.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.12 ms. Allocated memory is still 202.4 MB. Free memory was 157.5 MB in the beginning and 156.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 410.33 ms. Allocated memory is still 202.4 MB. Free memory was 155.5 MB in the beginning and 133.8 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3315.40 ms. Allocated memory was 202.4 MB in the beginning and 248.0 MB in the end (delta: 45.6 MB). Free memory was 133.2 MB in the beginning and 172.1 MB in the end (delta: -38.9 MB). Peak memory consumption was 6.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 779 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 9 SemBasedMoverChecksPositive, 27 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 48 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 75 PlacesBefore, 30 PlacesAfterwards, 67 TransitionsBefore, 20 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 5 FixpointIterations, 12 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 54 TotalNumberOfCompositions, 1902 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 179 SDtfs, 120 SDslu, 194 SDs, 0 SdLazy, 99 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred 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: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 4 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 2936 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...