/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/safe015_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-17 00:00:28,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-17 00:00:28,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-17 00:00:28,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-17 00:00:28,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-17 00:00:28,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-17 00:00:28,179 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-17 00:00:28,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-17 00:00:28,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-17 00:00:28,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-17 00:00:28,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-17 00:00:28,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-17 00:00:28,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-17 00:00:28,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-17 00:00:28,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-17 00:00:28,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-17 00:00:28,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-17 00:00:28,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-17 00:00:28,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-17 00:00:28,195 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-17 00:00:28,200 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-17 00:00:28,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-17 00:00:28,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-17 00:00:28,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-17 00:00:28,209 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-17 00:00:28,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-17 00:00:28,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-17 00:00:28,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-17 00:00:28,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-17 00:00:28,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-17 00:00:28,216 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-17 00:00:28,217 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-17 00:00:28,217 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-17 00:00:28,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-17 00:00:28,218 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-17 00:00:28,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-17 00:00:28,220 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-17 00:00:28,245 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-17 00:00:28,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-17 00:00:28,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-17 00:00:28,247 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-17 00:00:28,247 INFO L138 SettingsManager]: * Use SBE=true [2020-09-17 00:00:28,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-17 00:00:28,247 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-17 00:00:28,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-17 00:00:28,248 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-17 00:00:28,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-17 00:00:28,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-17 00:00:28,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-17 00:00:28,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-17 00:00:28,249 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-17 00:00:28,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-17 00:00:28,249 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-17 00:00:28,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-17 00:00:28,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-17 00:00:28,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-17 00:00:28,250 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-17 00:00:28,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-17 00:00:28,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 00:00:28,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-17 00:00:28,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-17 00:00:28,251 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-17 00:00:28,251 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-17 00:00:28,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-17 00:00:28,252 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-17 00:00:28,252 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-17 00:00:28,252 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-17 00:00:28,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-17 00:00:28,711 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-17 00:00:28,715 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-17 00:00:28,717 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-17 00:00:28,717 INFO L275 PluginConnector]: CDTParser initialized [2020-09-17 00:00:28,719 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc.i [2020-09-17 00:00:28,799 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db19882b1/3d12f43d889f425ca165890abf1ed20f/FLAGd1639799d [2020-09-17 00:00:29,423 INFO L306 CDTParser]: Found 1 translation units. [2020-09-17 00:00:29,424 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc.i [2020-09-17 00:00:29,443 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db19882b1/3d12f43d889f425ca165890abf1ed20f/FLAGd1639799d [2020-09-17 00:00:29,699 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db19882b1/3d12f43d889f425ca165890abf1ed20f [2020-09-17 00:00:29,712 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-17 00:00:29,719 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-17 00:00:29,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-17 00:00:29,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-17 00:00:29,724 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-17 00:00:29,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 12:00:29" (1/1) ... [2020-09-17 00:00:29,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@536306fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:00:29, skipping insertion in model container [2020-09-17 00:00:29,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 12:00:29" (1/1) ... [2020-09-17 00:00:29,738 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-17 00:00:29,791 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-17 00:00:30,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 00:00:30,306 INFO L203 MainTranslator]: Completed pre-run [2020-09-17 00:00:30,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 00:00:30,449 INFO L208 MainTranslator]: Completed translation [2020-09-17 00:00:30,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:00:30 WrapperNode [2020-09-17 00:00:30,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-17 00:00:30,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-17 00:00:30,451 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-17 00:00:30,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-17 00:00:30,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:00:30" (1/1) ... [2020-09-17 00:00:30,482 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:00:30" (1/1) ... [2020-09-17 00:00:30,510 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-17 00:00:30,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-17 00:00:30,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-17 00:00:30,511 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-17 00:00:30,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:00:30" (1/1) ... [2020-09-17 00:00:30,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:00:30" (1/1) ... [2020-09-17 00:00:30,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:00:30" (1/1) ... [2020-09-17 00:00:30,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:00:30" (1/1) ... [2020-09-17 00:00:30,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:00:30" (1/1) ... [2020-09-17 00:00:30,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:00:30" (1/1) ... [2020-09-17 00:00:30,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:00:30" (1/1) ... [2020-09-17 00:00:30,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-17 00:00:30,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-17 00:00:30,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-17 00:00:30,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-17 00:00:30,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:00:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 00:00:30,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-17 00:00:30,638 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-17 00:00:30,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-17 00:00:30,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-17 00:00:30,638 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-17 00:00:30,639 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-17 00:00:30,639 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-17 00:00:30,640 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-17 00:00:30,640 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-17 00:00:30,641 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-17 00:00:30,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-17 00:00:30,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-17 00:00:30,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-17 00:00:30,644 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-17 00:00:31,040 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-17 00:00:31,040 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-17 00:00:31,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 12:00:31 BoogieIcfgContainer [2020-09-17 00:00:31,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-17 00:00:31,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-17 00:00:31,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-17 00:00:31,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-17 00:00:31,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.09 12:00:29" (1/3) ... [2020-09-17 00:00:31,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@601aee0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 12:00:31, skipping insertion in model container [2020-09-17 00:00:31,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:00:30" (2/3) ... [2020-09-17 00:00:31,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@601aee0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 12:00:31, skipping insertion in model container [2020-09-17 00:00:31,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 12:00:31" (3/3) ... [2020-09-17 00:00:31,055 INFO L109 eAbstractionObserver]: Analyzing ICFG safe015_pso.oepc.i [2020-09-17 00:00:31,067 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-17 00:00:31,067 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-17 00:00:31,079 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-17 00:00:31,081 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-17 00:00:31,120 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,120 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,120 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,121 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,121 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,121 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,122 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,122 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,122 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,123 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,123 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,123 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,124 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,124 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,124 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,125 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,125 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,125 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,130 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,130 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,131 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,131 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,138 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,138 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,138 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,139 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,141 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,142 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,142 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,142 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:00:31,167 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-17 00:00:31,193 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 00:00:31,194 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 00:00:31,194 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-17 00:00:31,194 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-17 00:00:31,194 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 00:00:31,195 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 00:00:31,195 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 00:00:31,195 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 00:00:31,211 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-09-17 00:00:31,213 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-09-17 00:00:31,262 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-09-17 00:00:31,263 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 00:00:31,269 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 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. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-17 00:00:31,272 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-09-17 00:00:31,293 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-09-17 00:00:31,293 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 00:00:31,294 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 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. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-17 00:00:31,296 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-17 00:00:31,297 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-17 00:00:33,081 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2826 [2020-09-17 00:00:33,081 INFO L214 etLargeBlockEncoding]: Total number of compositions: 58 [2020-09-17 00:00:33,086 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-09-17 00:00:33,113 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-09-17 00:00:33,116 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-17 00:00:33,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-17 00:00:33,126 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:00:33,127 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:00:33,127 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:00:33,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:00:33,134 INFO L82 PathProgramCache]: Analyzing trace with hash -2122060928, now seen corresponding path program 1 times [2020-09-17 00:00:33,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:00:33,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018313877] [2020-09-17 00:00:33,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:00:33,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:00:33,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:00:33,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018313877] [2020-09-17 00:00:33,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:00:33,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-17 00:00:33,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635904879] [2020-09-17 00:00:33,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 00:00:33,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:00:33,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 00:00:33,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:00:33,441 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-09-17 00:00:33,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:00:33,507 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-09-17 00:00:33,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 00:00:33,514 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-17 00:00:33,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:00:33,533 INFO L225 Difference]: With dead ends: 282 [2020-09-17 00:00:33,533 INFO L226 Difference]: Without dead ends: 218 [2020-09-17 00:00:33,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:00:33,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-09-17 00:00:33,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-09-17 00:00:33,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-09-17 00:00:33,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-09-17 00:00:33,607 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-09-17 00:00:33,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:00:33,609 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-09-17 00:00:33,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 00:00:33,609 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-09-17 00:00:33,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-17 00:00:33,610 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:00:33,611 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:00:33,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-17 00:00:33,611 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:00:33,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:00:33,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1372085576, now seen corresponding path program 1 times [2020-09-17 00:00:33,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:00:33,612 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369399736] [2020-09-17 00:00:33,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:00:33,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:00:33,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:00:33,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369399736] [2020-09-17 00:00:33,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:00:33,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 00:00:33,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912023843] [2020-09-17 00:00:33,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 00:00:33,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:00:33,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 00:00:33,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:00:33,748 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 3 states. [2020-09-17 00:00:33,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:00:33,774 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-09-17 00:00:33,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 00:00:33,776 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-17 00:00:33,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:00:33,778 INFO L225 Difference]: With dead ends: 202 [2020-09-17 00:00:33,778 INFO L226 Difference]: Without dead ends: 202 [2020-09-17 00:00:33,780 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:00:33,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-09-17 00:00:33,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-09-17 00:00:33,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-09-17 00:00:33,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-09-17 00:00:33,817 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-09-17 00:00:33,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:00:33,817 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-09-17 00:00:33,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 00:00:33,817 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-09-17 00:00:33,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-17 00:00:33,819 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:00:33,819 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:00:33,820 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-17 00:00:33,821 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:00:33,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:00:33,821 INFO L82 PathProgramCache]: Analyzing trace with hash 365373016, now seen corresponding path program 1 times [2020-09-17 00:00:33,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:00:33,822 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125086743] [2020-09-17 00:00:33,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:00:33,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:00:33,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:00:33,918 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125086743] [2020-09-17 00:00:33,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:00:33,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-17 00:00:33,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472251607] [2020-09-17 00:00:33,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 00:00:33,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:00:33,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 00:00:33,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:00:33,920 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-09-17 00:00:33,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:00:33,928 INFO L93 Difference]: Finished difference Result 198 states and 530 transitions. [2020-09-17 00:00:33,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 00:00:33,929 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-09-17 00:00:33,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:00:33,931 INFO L225 Difference]: With dead ends: 198 [2020-09-17 00:00:33,931 INFO L226 Difference]: Without dead ends: 198 [2020-09-17 00:00:33,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:00:33,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-09-17 00:00:33,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-09-17 00:00:33,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-09-17 00:00:33,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 530 transitions. [2020-09-17 00:00:33,946 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 530 transitions. Word has length 10 [2020-09-17 00:00:33,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:00:33,947 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 530 transitions. [2020-09-17 00:00:33,947 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 00:00:33,947 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 530 transitions. [2020-09-17 00:00:33,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-17 00:00:33,951 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:00:33,951 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:00:33,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-17 00:00:33,952 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:00:33,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:00:33,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1571968161, now seen corresponding path program 1 times [2020-09-17 00:00:33,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:00:33,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803755741] [2020-09-17 00:00:33,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:00:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:00:34,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:00:34,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803755741] [2020-09-17 00:00:34,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:00:34,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-17 00:00:34,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373792971] [2020-09-17 00:00:34,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 00:00:34,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:00:34,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 00:00:34,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:00:34,008 INFO L87 Difference]: Start difference. First operand 198 states and 530 transitions. Second operand 3 states. [2020-09-17 00:00:34,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:00:34,015 INFO L93 Difference]: Finished difference Result 192 states and 511 transitions. [2020-09-17 00:00:34,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 00:00:34,019 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-09-17 00:00:34,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:00:34,021 INFO L225 Difference]: With dead ends: 192 [2020-09-17 00:00:34,021 INFO L226 Difference]: Without dead ends: 192 [2020-09-17 00:00:34,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:00:34,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-09-17 00:00:34,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2020-09-17 00:00:34,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-09-17 00:00:34,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 511 transitions. [2020-09-17 00:00:34,034 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 511 transitions. Word has length 11 [2020-09-17 00:00:34,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:00:34,035 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 511 transitions. [2020-09-17 00:00:34,035 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 00:00:34,035 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 511 transitions. [2020-09-17 00:00:34,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-17 00:00:34,037 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:00:34,037 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:00:34,037 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-17 00:00:34,037 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:00:34,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:00:34,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1486373385, now seen corresponding path program 1 times [2020-09-17 00:00:34,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:00:34,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608308681] [2020-09-17 00:00:34,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:00:34,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:00:34,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:00:34,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608308681] [2020-09-17 00:00:34,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:00:34,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 00:00:34,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474087648] [2020-09-17 00:00:34,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 00:00:34,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:00:34,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 00:00:34,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 00:00:34,158 INFO L87 Difference]: Start difference. First operand 192 states and 511 transitions. Second operand 4 states. [2020-09-17 00:00:34,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:00:34,208 INFO L93 Difference]: Finished difference Result 224 states and 554 transitions. [2020-09-17 00:00:34,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 00:00:34,214 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-17 00:00:34,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:00:34,216 INFO L225 Difference]: With dead ends: 224 [2020-09-17 00:00:34,216 INFO L226 Difference]: Without dead ends: 160 [2020-09-17 00:00:34,216 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-17 00:00:34,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-09-17 00:00:34,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-09-17 00:00:34,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-09-17 00:00:34,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 383 transitions. [2020-09-17 00:00:34,260 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 383 transitions. Word has length 12 [2020-09-17 00:00:34,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:00:34,260 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 383 transitions. [2020-09-17 00:00:34,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 00:00:34,260 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 383 transitions. [2020-09-17 00:00:34,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-17 00:00:34,265 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:00:34,265 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:00:34,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-17 00:00:34,266 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:00:34,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:00:34,266 INFO L82 PathProgramCache]: Analyzing trace with hash 887113091, now seen corresponding path program 1 times [2020-09-17 00:00:34,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:00:34,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489414399] [2020-09-17 00:00:34,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:00:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:00:34,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:00:34,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489414399] [2020-09-17 00:00:34,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:00:34,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 00:00:34,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523481280] [2020-09-17 00:00:34,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 00:00:34,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:00:34,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 00:00:34,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 00:00:34,358 INFO L87 Difference]: Start difference. First operand 160 states and 383 transitions. Second operand 5 states. [2020-09-17 00:00:34,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:00:34,400 INFO L93 Difference]: Finished difference Result 160 states and 362 transitions. [2020-09-17 00:00:34,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 00:00:34,401 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-17 00:00:34,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:00:34,402 INFO L225 Difference]: With dead ends: 160 [2020-09-17 00:00:34,402 INFO L226 Difference]: Without dead ends: 123 [2020-09-17 00:00:34,403 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-17 00:00:34,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-09-17 00:00:34,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-09-17 00:00:34,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-09-17 00:00:34,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 272 transitions. [2020-09-17 00:00:34,408 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 272 transitions. Word has length 13 [2020-09-17 00:00:34,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:00:34,408 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 272 transitions. [2020-09-17 00:00:34,408 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 00:00:34,409 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 272 transitions. [2020-09-17 00:00:34,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-17 00:00:34,410 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:00:34,410 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:00:34,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-17 00:00:34,410 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:00:34,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:00:34,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1920279248, now seen corresponding path program 1 times [2020-09-17 00:00:34,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:00:34,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353067681] [2020-09-17 00:00:34,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:00:34,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:00:34,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:00:34,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353067681] [2020-09-17 00:00:34,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:00:34,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 00:00:34,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801258876] [2020-09-17 00:00:34,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 00:00:34,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:00:34,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 00:00:34,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:00:34,456 INFO L87 Difference]: Start difference. First operand 123 states and 272 transitions. Second operand 3 states. [2020-09-17 00:00:34,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:00:34,464 INFO L93 Difference]: Finished difference Result 155 states and 330 transitions. [2020-09-17 00:00:34,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 00:00:34,464 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-09-17 00:00:34,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:00:34,465 INFO L225 Difference]: With dead ends: 155 [2020-09-17 00:00:34,466 INFO L226 Difference]: Without dead ends: 124 [2020-09-17 00:00:34,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:00:34,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-09-17 00:00:34,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 122. [2020-09-17 00:00:34,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-09-17 00:00:34,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 257 transitions. [2020-09-17 00:00:34,470 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 257 transitions. Word has length 14 [2020-09-17 00:00:34,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:00:34,471 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 257 transitions. [2020-09-17 00:00:34,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 00:00:34,471 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 257 transitions. [2020-09-17 00:00:34,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-17 00:00:34,472 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:00:34,472 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:00:34,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-17 00:00:34,472 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:00:34,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:00:34,473 INFO L82 PathProgramCache]: Analyzing trace with hash 451653261, now seen corresponding path program 1 times [2020-09-17 00:00:34,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:00:34,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151571295] [2020-09-17 00:00:34,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:00:34,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:00:34,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:00:34,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151571295] [2020-09-17 00:00:34,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:00:34,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 00:00:34,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090544450] [2020-09-17 00:00:34,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 00:00:34,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:00:34,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 00:00:34,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 00:00:34,527 INFO L87 Difference]: Start difference. First operand 122 states and 257 transitions. Second operand 4 states. [2020-09-17 00:00:34,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:00:34,547 INFO L93 Difference]: Finished difference Result 154 states and 308 transitions. [2020-09-17 00:00:34,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-17 00:00:34,548 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-09-17 00:00:34,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:00:34,549 INFO L225 Difference]: With dead ends: 154 [2020-09-17 00:00:34,549 INFO L226 Difference]: Without dead ends: 116 [2020-09-17 00:00:34,549 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 [2020-09-17 00:00:34,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-09-17 00:00:34,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2020-09-17 00:00:34,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-17 00:00:34,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 222 transitions. [2020-09-17 00:00:34,553 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 222 transitions. Word has length 15 [2020-09-17 00:00:34,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:00:34,554 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 222 transitions. [2020-09-17 00:00:34,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 00:00:34,554 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 222 transitions. [2020-09-17 00:00:34,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-17 00:00:34,555 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:00:34,555 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:00:34,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-17 00:00:34,555 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:00:34,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:00:34,556 INFO L82 PathProgramCache]: Analyzing trace with hash -600886075, now seen corresponding path program 1 times [2020-09-17 00:00:34,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:00:34,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643491843] [2020-09-17 00:00:34,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:00:34,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:00:34,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:00:34,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643491843] [2020-09-17 00:00:34,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:00:34,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-17 00:00:34,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538223906] [2020-09-17 00:00:34,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-17 00:00:34,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:00:34,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-17 00:00:34,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-17 00:00:34,652 INFO L87 Difference]: Start difference. First operand 114 states and 222 transitions. Second operand 6 states. [2020-09-17 00:00:34,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:00:34,712 INFO L93 Difference]: Finished difference Result 110 states and 212 transitions. [2020-09-17 00:00:34,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-17 00:00:34,712 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-09-17 00:00:34,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:00:34,713 INFO L225 Difference]: With dead ends: 110 [2020-09-17 00:00:34,713 INFO L226 Difference]: Without dead ends: 38 [2020-09-17 00:00:34,713 INFO L675 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 [2020-09-17 00:00:34,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-17 00:00:34,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-17 00:00:34,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-17 00:00:34,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 62 transitions. [2020-09-17 00:00:34,715 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 62 transitions. Word has length 15 [2020-09-17 00:00:34,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:00:34,716 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 62 transitions. [2020-09-17 00:00:34,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-17 00:00:34,716 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2020-09-17 00:00:34,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-17 00:00:34,717 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:00:34,717 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:00:34,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-17 00:00:34,717 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:00:34,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:00:34,718 INFO L82 PathProgramCache]: Analyzing trace with hash 13395029, now seen corresponding path program 1 times [2020-09-17 00:00:34,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:00:34,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410791125] [2020-09-17 00:00:34,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:00:34,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:00:34,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:00:34,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410791125] [2020-09-17 00:00:34,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:00:34,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 00:00:34,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263932079] [2020-09-17 00:00:34,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 00:00:34,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:00:34,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 00:00:34,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 00:00:34,813 INFO L87 Difference]: Start difference. First operand 38 states and 62 transitions. Second operand 4 states. [2020-09-17 00:00:34,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:00:34,830 INFO L93 Difference]: Finished difference Result 51 states and 83 transitions. [2020-09-17 00:00:34,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 00:00:34,831 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-09-17 00:00:34,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:00:34,831 INFO L225 Difference]: With dead ends: 51 [2020-09-17 00:00:34,831 INFO L226 Difference]: Without dead ends: 30 [2020-09-17 00:00:34,832 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 [2020-09-17 00:00:34,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-17 00:00:34,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-17 00:00:34,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-17 00:00:34,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-09-17 00:00:34,834 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-09-17 00:00:34,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:00:34,834 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-09-17 00:00:34,834 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 00:00:34,834 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-09-17 00:00:34,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-17 00:00:34,837 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:00:34,837 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:00:34,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-17 00:00:34,837 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:00:34,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:00:34,838 INFO L82 PathProgramCache]: Analyzing trace with hash -34011261, now seen corresponding path program 2 times [2020-09-17 00:00:34,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:00:34,838 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413916494] [2020-09-17 00:00:34,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:00:34,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:00:34,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:00:34,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413916494] [2020-09-17 00:00:34,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:00:34,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 00:00:34,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702396267] [2020-09-17 00:00:34,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 00:00:34,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:00:34,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 00:00:34,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 00:00:34,910 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-09-17 00:00:34,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:00:34,926 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-09-17 00:00:34,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-17 00:00:34,928 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-09-17 00:00:34,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:00:34,929 INFO L225 Difference]: With dead ends: 29 [2020-09-17 00:00:34,930 INFO L226 Difference]: Without dead ends: 0 [2020-09-17 00:00:34,931 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-17 00:00:34,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-17 00:00:34,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-17 00:00:34,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-17 00:00:34,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-17 00:00:34,932 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-09-17 00:00:34,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:00:34,932 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-17 00:00:34,932 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 00:00:34,932 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-17 00:00:34,933 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-17 00:00:34,933 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-17 00:00:34,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.09 12:00:34 BasicIcfg [2020-09-17 00:00:34,938 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-17 00:00:34,941 INFO L168 Benchmark]: Toolchain (without parser) took 5226.18 ms. Allocated memory was 138.9 MB in the beginning and 250.1 MB in the end (delta: 111.1 MB). Free memory was 100.6 MB in the beginning and 132.0 MB in the end (delta: -31.4 MB). Peak memory consumption was 79.7 MB. Max. memory is 7.1 GB. [2020-09-17 00:00:34,943 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-17 00:00:34,949 INFO L168 Benchmark]: CACSL2BoogieTranslator took 730.39 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 100.2 MB in the beginning and 159.8 MB in the end (delta: -59.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2020-09-17 00:00:34,951 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.29 ms. Allocated memory is still 202.4 MB. Free memory was 159.8 MB in the beginning and 157.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-17 00:00:34,952 INFO L168 Benchmark]: Boogie Preprocessor took 30.37 ms. Allocated memory is still 202.4 MB. Free memory was 157.7 MB in the beginning and 156.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-17 00:00:34,953 INFO L168 Benchmark]: RCFGBuilder took 504.38 ms. Allocated memory is still 202.4 MB. Free memory was 156.4 MB in the beginning and 134.1 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-09-17 00:00:34,958 INFO L168 Benchmark]: TraceAbstraction took 3890.81 ms. Allocated memory was 202.4 MB in the beginning and 250.1 MB in the end (delta: 47.7 MB). Free memory was 134.1 MB in the beginning and 132.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 49.7 MB. Max. memory is 7.1 GB. [2020-09-17 00:00:34,965 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 730.39 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 100.2 MB in the beginning and 159.8 MB in the end (delta: -59.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.29 ms. Allocated memory is still 202.4 MB. Free memory was 159.8 MB in the beginning and 157.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.37 ms. Allocated memory is still 202.4 MB. Free memory was 157.7 MB in the beginning and 156.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 504.38 ms. Allocated memory is still 202.4 MB. Free memory was 156.4 MB in the beginning and 134.1 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3890.81 ms. Allocated memory was 202.4 MB in the beginning and 250.1 MB in the end (delta: 47.7 MB). Free memory was 134.1 MB in the beginning and 132.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 49.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.8s, 77 ProgramPointsBefore, 31 ProgramPointsAfterwards, 69 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 8 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 676 VarBasedMoverChecksPositive, 41 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2826 CheckedPairsTotal, 58 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, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.7s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 216 SDtfs, 131 SDslu, 232 SDs, 0 SdLazy, 130 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s 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, 11 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 4600 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...