/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/safe003_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-16 23:10:48,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-16 23:10:48,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-16 23:10:48,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-16 23:10:48,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-16 23:10:48,605 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-16 23:10:48,609 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-16 23:10:48,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-16 23:10:48,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-16 23:10:48,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-16 23:10:48,619 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-16 23:10:48,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-16 23:10:48,620 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-16 23:10:48,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-16 23:10:48,626 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-16 23:10:48,628 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-16 23:10:48,629 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-16 23:10:48,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-16 23:10:48,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-16 23:10:48,640 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-16 23:10:48,643 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-16 23:10:48,644 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-16 23:10:48,645 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-16 23:10:48,646 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-16 23:10:48,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-16 23:10:48,658 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-16 23:10:48,659 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-16 23:10:48,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-16 23:10:48,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-16 23:10:48,671 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-16 23:10:48,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-16 23:10:48,672 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-16 23:10:48,673 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-16 23:10:48,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-16 23:10:48,677 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-16 23:10:48,677 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-16 23:10:48,678 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-16 23:10:48,678 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-16 23:10:48,678 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-16 23:10:48,679 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-16 23:10:48,680 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-16 23:10:48,682 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 [2020-09-16 23:10:48,729 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-16 23:10:48,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-16 23:10:48,730 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-16 23:10:48,731 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-16 23:10:48,731 INFO L138 SettingsManager]: * Use SBE=true [2020-09-16 23:10:48,731 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-16 23:10:48,731 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-16 23:10:48,731 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-16 23:10:48,732 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-16 23:10:48,732 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-16 23:10:48,732 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-16 23:10:48,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-16 23:10:48,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-16 23:10:48,733 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-16 23:10:48,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-16 23:10:48,733 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-16 23:10:48,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-16 23:10:48,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-16 23:10:48,734 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-16 23:10:48,734 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-16 23:10:48,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-16 23:10:48,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-16 23:10:48,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-16 23:10:48,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-16 23:10:48,735 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-16 23:10:48,735 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-16 23:10:48,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-16 23:10:48,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-16 23:10:48,736 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-16 23:10:48,736 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-16 23:10:49,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-16 23:10:49,205 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-16 23:10:49,209 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-16 23:10:49,211 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-16 23:10:49,211 INFO L275 PluginConnector]: CDTParser initialized [2020-09-16 23:10:49,213 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2020-09-16 23:10:49,303 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c738024d/772c87a5ace24a2583728d194c90f27a/FLAGbf81cc726 [2020-09-16 23:10:49,936 INFO L306 CDTParser]: Found 1 translation units. [2020-09-16 23:10:49,937 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2020-09-16 23:10:49,967 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c738024d/772c87a5ace24a2583728d194c90f27a/FLAGbf81cc726 [2020-09-16 23:10:50,201 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c738024d/772c87a5ace24a2583728d194c90f27a [2020-09-16 23:10:50,216 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-16 23:10:50,223 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-16 23:10:50,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-16 23:10:50,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-16 23:10:50,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-16 23:10:50,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:10:50" (1/1) ... [2020-09-16 23:10:50,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a0f7ff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:10:50, skipping insertion in model container [2020-09-16 23:10:50,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:10:50" (1/1) ... [2020-09-16 23:10:50,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-16 23:10:50,322 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-16 23:10:50,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-16 23:10:50,890 INFO L203 MainTranslator]: Completed pre-run [2020-09-16 23:10:50,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-16 23:10:51,045 INFO L208 MainTranslator]: Completed translation [2020-09-16 23:10:51,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:10:51 WrapperNode [2020-09-16 23:10:51,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-16 23:10:51,047 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-16 23:10:51,047 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-16 23:10:51,047 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-16 23:10:51,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:10:51" (1/1) ... [2020-09-16 23:10:51,081 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:10:51" (1/1) ... [2020-09-16 23:10:51,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-16 23:10:51,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-16 23:10:51,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-16 23:10:51,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-16 23:10:51,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:10:51" (1/1) ... [2020-09-16 23:10:51,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:10:51" (1/1) ... [2020-09-16 23:10:51,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:10:51" (1/1) ... [2020-09-16 23:10:51,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:10:51" (1/1) ... [2020-09-16 23:10:51,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:10:51" (1/1) ... [2020-09-16 23:10:51,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:10:51" (1/1) ... [2020-09-16 23:10:51,153 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:10:51" (1/1) ... [2020-09-16 23:10:51,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-16 23:10:51,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-16 23:10:51,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-16 23:10:51,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-16 23:10:51,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:10:51" (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 [2020-09-16 23:10:51,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-16 23:10:51,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-16 23:10:51,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-16 23:10:51,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-16 23:10:51,254 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-16 23:10:51,255 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-16 23:10:51,255 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-16 23:10:51,255 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-16 23:10:51,255 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-16 23:10:51,255 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-16 23:10:51,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-16 23:10:51,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-16 23:10:51,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-16 23:10:51,258 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-16 23:10:51,661 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-16 23:10:51,661 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-16 23:10:51,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:10:51 BoogieIcfgContainer [2020-09-16 23:10:51,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-16 23:10:51,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-16 23:10:51,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-16 23:10:51,673 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-16 23:10:51,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:10:50" (1/3) ... [2020-09-16 23:10:51,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e6ad21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:10:51, skipping insertion in model container [2020-09-16 23:10:51,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:10:51" (2/3) ... [2020-09-16 23:10:51,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e6ad21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:10:51, skipping insertion in model container [2020-09-16 23:10:51,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:10:51" (3/3) ... [2020-09-16 23:10:51,677 INFO L109 eAbstractionObserver]: Analyzing ICFG safe003_tso.oepc.i [2020-09-16 23:10:51,690 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-16 23:10:51,690 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-16 23:10:51,701 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-16 23:10:51,702 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-16 23:10:51,735 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,735 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,735 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,736 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,736 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,736 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,737 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,737 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,737 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,738 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,738 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,738 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,739 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,739 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,739 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,739 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,740 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,740 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,745 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,745 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,746 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,746 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,753 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,753 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,754 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,754 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,757 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,758 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,758 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,758 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 23:10:51,780 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-16 23:10:51,806 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-16 23:10:51,807 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-16 23:10:51,807 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-16 23:10:51,807 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-16 23:10:51,807 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-16 23:10:51,808 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-16 23:10:51,808 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-16 23:10:51,808 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-16 23:10:51,827 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-09-16 23:10:51,830 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-16 23:10:51,884 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-16 23:10:51,884 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-16 23:10:51,891 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 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. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-16 23:10:51,898 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-16 23:10:51,937 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-16 23:10:51,939 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-16 23:10:51,940 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 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. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-16 23:10:51,943 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-16 23:10:51,947 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-16 23:10:53,658 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2700 [2020-09-16 23:10:53,659 INFO L214 etLargeBlockEncoding]: Total number of compositions: 59 [2020-09-16 23:10:53,663 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-09-16 23:10:53,691 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-09-16 23:10:53,694 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-16 23:10:53,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-16 23:10:53,704 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 23:10:53,705 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 23:10:53,706 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 23:10:53,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 23:10:53,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-09-16 23:10:53,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 23:10:53,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873764131] [2020-09-16 23:10:53,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 23:10:53,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 23:10:53,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 23:10:53,982 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873764131] [2020-09-16 23:10:53,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 23:10:53,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-16 23:10:53,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773031646] [2020-09-16 23:10:54,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-16 23:10:54,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 23:10:54,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-16 23:10:54,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-16 23:10:54,028 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-09-16 23:10:54,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 23:10:54,112 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-09-16 23:10:54,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-16 23:10:54,116 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-16 23:10:54,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 23:10:54,134 INFO L225 Difference]: With dead ends: 290 [2020-09-16 23:10:54,135 INFO L226 Difference]: Without dead ends: 226 [2020-09-16 23:10:54,136 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 [2020-09-16 23:10:54,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-16 23:10:54,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-09-16 23:10:54,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-09-16 23:10:54,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-09-16 23:10:54,214 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-09-16 23:10:54,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 23:10:54,216 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-09-16 23:10:54,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-16 23:10:54,216 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-09-16 23:10:54,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-16 23:10:54,218 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 23:10:54,218 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 23:10:54,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-16 23:10:54,222 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 23:10:54,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 23:10:54,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1035713695, now seen corresponding path program 1 times [2020-09-16 23:10:54,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 23:10:54,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970074645] [2020-09-16 23:10:54,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 23:10:54,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 23:10:54,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 23:10:54,362 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970074645] [2020-09-16 23:10:54,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 23:10:54,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-16 23:10:54,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198571615] [2020-09-16 23:10:54,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-16 23:10:54,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 23:10:54,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-16 23:10:54,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-16 23:10:54,366 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states. [2020-09-16 23:10:54,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 23:10:54,375 INFO L93 Difference]: Finished difference Result 214 states and 585 transitions. [2020-09-16 23:10:54,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-16 23:10:54,376 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-16 23:10:54,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 23:10:54,379 INFO L225 Difference]: With dead ends: 214 [2020-09-16 23:10:54,379 INFO L226 Difference]: Without dead ends: 214 [2020-09-16 23:10:54,380 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 [2020-09-16 23:10:54,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-09-16 23:10:54,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2020-09-16 23:10:54,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-09-16 23:10:54,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 585 transitions. [2020-09-16 23:10:54,400 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 585 transitions. Word has length 9 [2020-09-16 23:10:54,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 23:10:54,401 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 585 transitions. [2020-09-16 23:10:54,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-16 23:10:54,401 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 585 transitions. [2020-09-16 23:10:54,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-16 23:10:54,402 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 23:10:54,403 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 23:10:54,403 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-16 23:10:54,403 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 23:10:54,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 23:10:54,404 INFO L82 PathProgramCache]: Analyzing trace with hash -2042509488, now seen corresponding path program 1 times [2020-09-16 23:10:54,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 23:10:54,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233940095] [2020-09-16 23:10:54,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 23:10:54,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 23:10:54,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 23:10:54,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233940095] [2020-09-16 23:10:54,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 23:10:54,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 23:10:54,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485396660] [2020-09-16 23:10:54,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-16 23:10:54,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 23:10:54,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-16 23:10:54,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-16 23:10:54,526 INFO L87 Difference]: Start difference. First operand 214 states and 585 transitions. Second operand 4 states. [2020-09-16 23:10:54,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 23:10:54,572 INFO L93 Difference]: Finished difference Result 254 states and 660 transitions. [2020-09-16 23:10:54,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-16 23:10:54,576 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-09-16 23:10:54,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 23:10:54,578 INFO L225 Difference]: With dead ends: 254 [2020-09-16 23:10:54,578 INFO L226 Difference]: Without dead ends: 134 [2020-09-16 23:10:54,578 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-16 23:10:54,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-09-16 23:10:54,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2020-09-16 23:10:54,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-09-16 23:10:54,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 326 transitions. [2020-09-16 23:10:54,596 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 326 transitions. Word has length 10 [2020-09-16 23:10:54,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 23:10:54,596 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 326 transitions. [2020-09-16 23:10:54,596 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-16 23:10:54,597 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 326 transitions. [2020-09-16 23:10:54,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-16 23:10:54,598 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 23:10:54,599 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 23:10:54,599 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-16 23:10:54,599 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 23:10:54,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 23:10:54,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1680323254, now seen corresponding path program 1 times [2020-09-16 23:10:54,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 23:10:54,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627199519] [2020-09-16 23:10:54,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 23:10:54,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 23:10:54,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 23:10:54,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627199519] [2020-09-16 23:10:54,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 23:10:54,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-16 23:10:54,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165793294] [2020-09-16 23:10:54,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-16 23:10:54,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 23:10:54,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-16 23:10:54,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-16 23:10:54,676 INFO L87 Difference]: Start difference. First operand 134 states and 326 transitions. Second operand 3 states. [2020-09-16 23:10:54,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 23:10:54,682 INFO L93 Difference]: Finished difference Result 128 states and 307 transitions. [2020-09-16 23:10:54,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-16 23:10:54,683 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-09-16 23:10:54,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 23:10:54,687 INFO L225 Difference]: With dead ends: 128 [2020-09-16 23:10:54,687 INFO L226 Difference]: Without dead ends: 128 [2020-09-16 23:10:54,688 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 [2020-09-16 23:10:54,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-09-16 23:10:54,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-09-16 23:10:54,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-09-16 23:10:54,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 307 transitions. [2020-09-16 23:10:54,697 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 307 transitions. Word has length 11 [2020-09-16 23:10:54,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 23:10:54,697 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 307 transitions. [2020-09-16 23:10:54,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-16 23:10:54,697 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 307 transitions. [2020-09-16 23:10:54,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-16 23:10:54,699 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 23:10:54,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 23:10:54,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-16 23:10:54,699 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 23:10:54,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 23:10:54,700 INFO L82 PathProgramCache]: Analyzing trace with hash 550400496, now seen corresponding path program 1 times [2020-09-16 23:10:54,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 23:10:54,700 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444657879] [2020-09-16 23:10:54,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 23:10:54,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 23:10:54,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 23:10:54,751 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444657879] [2020-09-16 23:10:54,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 23:10:54,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-16 23:10:54,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745018231] [2020-09-16 23:10:54,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-16 23:10:54,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 23:10:54,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-16 23:10:54,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-16 23:10:54,754 INFO L87 Difference]: Start difference. First operand 128 states and 307 transitions. Second operand 3 states. [2020-09-16 23:10:54,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 23:10:54,759 INFO L93 Difference]: Finished difference Result 122 states and 288 transitions. [2020-09-16 23:10:54,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-16 23:10:54,760 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-09-16 23:10:54,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 23:10:54,761 INFO L225 Difference]: With dead ends: 122 [2020-09-16 23:10:54,761 INFO L226 Difference]: Without dead ends: 122 [2020-09-16 23:10:54,762 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 [2020-09-16 23:10:54,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-09-16 23:10:54,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2020-09-16 23:10:54,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-09-16 23:10:54,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 288 transitions. [2020-09-16 23:10:54,771 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 288 transitions. Word has length 12 [2020-09-16 23:10:54,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 23:10:54,771 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 288 transitions. [2020-09-16 23:10:54,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-16 23:10:54,771 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 288 transitions. [2020-09-16 23:10:54,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-16 23:10:54,773 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 23:10:54,773 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 23:10:54,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-16 23:10:54,773 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 23:10:54,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 23:10:54,774 INFO L82 PathProgramCache]: Analyzing trace with hash -117499308, now seen corresponding path program 1 times [2020-09-16 23:10:54,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 23:10:54,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454477623] [2020-09-16 23:10:54,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 23:10:54,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 23:10:54,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 23:10:54,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454477623] [2020-09-16 23:10:54,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 23:10:54,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 23:10:54,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004975183] [2020-09-16 23:10:54,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-16 23:10:54,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 23:10:54,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-16 23:10:54,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-16 23:10:54,892 INFO L87 Difference]: Start difference. First operand 122 states and 288 transitions. Second operand 4 states. [2020-09-16 23:10:54,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 23:10:54,933 INFO L93 Difference]: Finished difference Result 184 states and 429 transitions. [2020-09-16 23:10:54,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-16 23:10:54,934 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-16 23:10:54,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 23:10:54,936 INFO L225 Difference]: With dead ends: 184 [2020-09-16 23:10:54,936 INFO L226 Difference]: Without dead ends: 130 [2020-09-16 23:10:54,936 INFO L675 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 [2020-09-16 23:10:54,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-09-16 23:10:54,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 122. [2020-09-16 23:10:54,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-09-16 23:10:54,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 278 transitions. [2020-09-16 23:10:54,951 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 278 transitions. Word has length 13 [2020-09-16 23:10:54,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 23:10:54,952 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 278 transitions. [2020-09-16 23:10:54,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-16 23:10:54,952 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 278 transitions. [2020-09-16 23:10:54,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-16 23:10:54,955 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 23:10:54,955 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 23:10:54,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-16 23:10:54,955 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 23:10:54,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 23:10:54,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1997055762, now seen corresponding path program 2 times [2020-09-16 23:10:54,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 23:10:54,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140276432] [2020-09-16 23:10:54,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 23:10:54,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 23:10:55,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 23:10:55,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140276432] [2020-09-16 23:10:55,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 23:10:55,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 23:10:55,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280289407] [2020-09-16 23:10:55,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-16 23:10:55,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 23:10:55,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-16 23:10:55,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-16 23:10:55,041 INFO L87 Difference]: Start difference. First operand 122 states and 278 transitions. Second operand 4 states. [2020-09-16 23:10:55,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 23:10:55,078 INFO L93 Difference]: Finished difference Result 142 states and 318 transitions. [2020-09-16 23:10:55,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-16 23:10:55,078 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-16 23:10:55,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 23:10:55,079 INFO L225 Difference]: With dead ends: 142 [2020-09-16 23:10:55,080 INFO L226 Difference]: Without dead ends: 82 [2020-09-16 23:10:55,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-16 23:10:55,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-09-16 23:10:55,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-09-16 23:10:55,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-09-16 23:10:55,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 174 transitions. [2020-09-16 23:10:55,086 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 174 transitions. Word has length 13 [2020-09-16 23:10:55,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 23:10:55,087 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 174 transitions. [2020-09-16 23:10:55,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-16 23:10:55,087 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 174 transitions. [2020-09-16 23:10:55,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-16 23:10:55,089 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 23:10:55,089 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 23:10:55,089 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-16 23:10:55,089 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 23:10:55,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 23:10:55,090 INFO L82 PathProgramCache]: Analyzing trace with hash 616515302, now seen corresponding path program 1 times [2020-09-16 23:10:55,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 23:10:55,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316614210] [2020-09-16 23:10:55,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 23:10:55,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 23:10:55,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 23:10:55,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316614210] [2020-09-16 23:10:55,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 23:10:55,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 23:10:55,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593210789] [2020-09-16 23:10:55,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-16 23:10:55,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 23:10:55,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-16 23:10:55,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-16 23:10:55,169 INFO L87 Difference]: Start difference. First operand 82 states and 174 transitions. Second operand 3 states. [2020-09-16 23:10:55,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 23:10:55,182 INFO L93 Difference]: Finished difference Result 74 states and 154 transitions. [2020-09-16 23:10:55,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-16 23:10:55,183 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-09-16 23:10:55,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 23:10:55,183 INFO L225 Difference]: With dead ends: 74 [2020-09-16 23:10:55,184 INFO L226 Difference]: Without dead ends: 0 [2020-09-16 23:10:55,184 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-16 23:10:55,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-16 23:10:55,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-16 23:10:55,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-16 23:10:55,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-16 23:10:55,185 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-09-16 23:10:55,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 23:10:55,185 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-16 23:10:55,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-16 23:10:55,186 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-16 23:10:55,186 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-16 23:10:55,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-16 23:10:55,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:10:55 BasicIcfg [2020-09-16 23:10:55,195 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-16 23:10:55,207 INFO L168 Benchmark]: Toolchain (without parser) took 4985.70 ms. Allocated memory was 139.5 MB in the beginning and 251.1 MB in the end (delta: 111.7 MB). Free memory was 101.2 MB in the beginning and 185.1 MB in the end (delta: -83.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. [2020-09-16 23:10:55,208 INFO L168 Benchmark]: CDTParser took 0.57 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-16 23:10:55,212 INFO L168 Benchmark]: CACSL2BoogieTranslator took 817.11 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 100.5 MB in the beginning and 161.9 MB in the end (delta: -61.3 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2020-09-16 23:10:55,213 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.09 ms. Allocated memory is still 204.5 MB. Free memory was 161.9 MB in the beginning and 159.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-16 23:10:55,214 INFO L168 Benchmark]: Boogie Preprocessor took 35.66 ms. Allocated memory is still 204.5 MB. Free memory was 159.8 MB in the beginning and 158.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-16 23:10:55,216 INFO L168 Benchmark]: RCFGBuilder took 494.50 ms. Allocated memory is still 204.5 MB. Free memory was 158.5 MB in the beginning and 136.2 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-09-16 23:10:55,217 INFO L168 Benchmark]: TraceAbstraction took 3532.36 ms. Allocated memory was 204.5 MB in the beginning and 251.1 MB in the end (delta: 46.7 MB). Free memory was 135.5 MB in the beginning and 185.1 MB in the end (delta: -49.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-16 23:10:55,228 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 817.11 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 100.5 MB in the beginning and 161.9 MB in the end (delta: -61.3 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 74.09 ms. Allocated memory is still 204.5 MB. Free memory was 161.9 MB in the beginning and 159.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.66 ms. Allocated memory is still 204.5 MB. Free memory was 159.8 MB in the beginning and 158.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 494.50 ms. Allocated memory is still 204.5 MB. Free memory was 158.5 MB in the beginning and 136.2 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3532.36 ms. Allocated memory was 204.5 MB in the beginning and 251.1 MB in the end (delta: 46.7 MB). Free memory was 135.5 MB in the beginning and 185.1 MB in the end (delta: -49.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.8s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 667 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 11 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 2700 CheckedPairsTotal, 59 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 144 SDtfs, 81 SDslu, 119 SDs, 0 SdLazy, 46 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 8 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 2334 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...