/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/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin000_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 00:43:44,120 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 00:43:44,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 00:43:44,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 00:43:44,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 00:43:44,147 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 00:43:44,148 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 00:43:44,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 00:43:44,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 00:43:44,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 00:43:44,153 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 00:43:44,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 00:43:44,157 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 00:43:44,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 00:43:44,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 00:43:44,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 00:43:44,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 00:43:44,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 00:43:44,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 00:43:44,169 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 00:43:44,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 00:43:44,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 00:43:44,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 00:43:44,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 00:43:44,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-22 00:43:44,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 00:43:44,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 00:43:44,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 00:43:44,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 00:43:44,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 00:43:44,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 00:43:44,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 00:43:44,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 00:43:44,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 00:43:44,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 00:43:44,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 00:43:44,184 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-22 00:43:44,207 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 00:43:44,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 00:43:44,208 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 00:43:44,209 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 00:43:44,209 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 00:43:44,209 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 00:43:44,209 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 00:43:44,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 00:43:44,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 00:43:44,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 00:43:44,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 00:43:44,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 00:43:44,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 00:43:44,211 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 00:43:44,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 00:43:44,211 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 00:43:44,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 00:43:44,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 00:43:44,211 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 00:43:44,212 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 00:43:44,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 00:43:44,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 00:43:44,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 00:43:44,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 00:43:44,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 00:43:44,213 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 00:43:44,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 00:43:44,213 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 00:43:44,213 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 00:43:44,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 00:43:44,214 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 00:43:44,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 00:43:44,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 00:43:44,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 00:43:44,529 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 00:43:44,530 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 00:43:44,531 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin000_pso.opt.i [2020-10-22 00:43:44,601 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc1cbbdcc/3a9158a22c454d0fa4be7e3ace27ae31/FLAG0acacc817 [2020-10-22 00:43:45,095 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 00:43:45,096 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin000_pso.opt.i [2020-10-22 00:43:45,110 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc1cbbdcc/3a9158a22c454d0fa4be7e3ace27ae31/FLAG0acacc817 [2020-10-22 00:43:45,401 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc1cbbdcc/3a9158a22c454d0fa4be7e3ace27ae31 [2020-10-22 00:43:45,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 00:43:45,418 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 00:43:45,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 00:43:45,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 00:43:45,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 00:43:45,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:43:45" (1/1) ... [2020-10-22 00:43:45,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7adc8642 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:45, skipping insertion in model container [2020-10-22 00:43:45,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:43:45" (1/1) ... [2020-10-22 00:43:45,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 00:43:45,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 00:43:46,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:43:46,039 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 00:43:46,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:43:46,178 INFO L208 MainTranslator]: Completed translation [2020-10-22 00:43:46,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:46 WrapperNode [2020-10-22 00:43:46,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 00:43:46,180 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 00:43:46,180 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 00:43:46,180 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 00:43:46,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:46" (1/1) ... [2020-10-22 00:43:46,205 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:46" (1/1) ... [2020-10-22 00:43:46,228 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 00:43:46,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 00:43:46,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 00:43:46,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 00:43:46,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:46" (1/1) ... [2020-10-22 00:43:46,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:46" (1/1) ... [2020-10-22 00:43:46,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:46" (1/1) ... [2020-10-22 00:43:46,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:46" (1/1) ... [2020-10-22 00:43:46,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:46" (1/1) ... [2020-10-22 00:43:46,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:46" (1/1) ... [2020-10-22 00:43:46,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:46" (1/1) ... [2020-10-22 00:43:46,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 00:43:46,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 00:43:46,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 00:43:46,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 00:43:46,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:46" (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 [2020-10-22 00:43:46,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 00:43:46,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 00:43:46,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 00:43:46,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 00:43:46,317 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 00:43:46,317 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 00:43:46,318 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 00:43:46,318 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 00:43:46,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 00:43:46,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 00:43:46,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 00:43:46,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 00:43:46,320 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 00:43:46,682 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 00:43:46,682 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 00:43:46,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:43:46 BoogieIcfgContainer [2020-10-22 00:43:46,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 00:43:46,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 00:43:46,687 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 00:43:46,689 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 00:43:46,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 12:43:45" (1/3) ... [2020-10-22 00:43:46,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8070103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:43:46, skipping insertion in model container [2020-10-22 00:43:46,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:46" (2/3) ... [2020-10-22 00:43:46,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8070103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:43:46, skipping insertion in model container [2020-10-22 00:43:46,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:43:46" (3/3) ... [2020-10-22 00:43:46,693 INFO L111 eAbstractionObserver]: Analyzing ICFG thin000_pso.opt.i [2020-10-22 00:43:46,702 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 00:43:46,703 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 00:43:46,709 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 00:43:46,710 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 00:43:46,737 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:46,737 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:46,738 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:46,738 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:46,739 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:46,739 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:46,740 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:46,740 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:46,741 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:46,741 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:46,742 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:46,742 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:46,747 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:46,747 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:46,747 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:46,748 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:46,759 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:46,759 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:46,759 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:46,760 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:46,769 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 00:43:46,784 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-22 00:43:46,801 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 00:43:46,802 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 00:43:46,802 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 00:43:46,802 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 00:43:46,802 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 00:43:46,802 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 00:43:46,803 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 00:43:46,803 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 00:43:46,814 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 00:43:46,814 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 65 transitions, 140 flow [2020-10-22 00:43:46,817 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 65 transitions, 140 flow [2020-10-22 00:43:46,819 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 69 places, 65 transitions, 140 flow [2020-10-22 00:43:46,861 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2020-10-22 00:43:46,862 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 00:43:46,866 INFO L80 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 63 events. 3/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-10-22 00:43:46,869 INFO L116 LiptonReduction]: Number of co-enabled transitions 792 [2020-10-22 00:43:48,004 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-10-22 00:43:48,291 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-22 00:43:48,404 INFO L131 LiptonReduction]: Checked pairs total: 1892 [2020-10-22 00:43:48,405 INFO L133 LiptonReduction]: Total number of compositions: 66 [2020-10-22 00:43:48,411 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 17 transitions, 44 flow [2020-10-22 00:43:48,426 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 90 states. [2020-10-22 00:43:48,428 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-10-22 00:43:48,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-22 00:43:48,435 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:43:48,436 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-22 00:43:48,436 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:43:48,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:43:48,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1281927427, now seen corresponding path program 1 times [2020-10-22 00:43:48,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:43:48,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826368041] [2020-10-22 00:43:48,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:43:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:43:48,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:43:48,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826368041] [2020-10-22 00:43:48,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:43:48,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:43:48,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [294159820] [2020-10-22 00:43:48,696 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:43:48,701 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:43:48,716 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-10-22 00:43:48,716 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:43:48,721 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:43:48,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-22 00:43:48,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:43:48,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-22 00:43:48,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 00:43:48,740 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2020-10-22 00:43:48,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:43:48,757 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2020-10-22 00:43:48,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-22 00:43:48,758 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-10-22 00:43:48,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:43:48,773 INFO L225 Difference]: With dead ends: 90 [2020-10-22 00:43:48,773 INFO L226 Difference]: Without dead ends: 74 [2020-10-22 00:43:48,774 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 00:43:48,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-22 00:43:48,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-22 00:43:48,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-22 00:43:48,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 160 transitions. [2020-10-22 00:43:48,812 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 160 transitions. Word has length 6 [2020-10-22 00:43:48,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:43:48,813 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 160 transitions. [2020-10-22 00:43:48,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-22 00:43:48,813 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 160 transitions. [2020-10-22 00:43:48,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-22 00:43:48,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:43:48,814 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:43:48,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 00:43:48,815 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:43:48,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:43:48,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1085050971, now seen corresponding path program 1 times [2020-10-22 00:43:48,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:43:48,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120895974] [2020-10-22 00:43:48,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:43:48,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:43:48,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:43:48,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120895974] [2020-10-22 00:43:48,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:43:48,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:43:48,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [799603584] [2020-10-22 00:43:48,932 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:43:48,932 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:43:48,934 INFO L252 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-10-22 00:43:48,934 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:43:48,934 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:43:48,936 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:43:48,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:43:48,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:43:48,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:43:48,937 INFO L87 Difference]: Start difference. First operand 74 states and 160 transitions. Second operand 5 states. [2020-10-22 00:43:49,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:43:49,009 INFO L93 Difference]: Finished difference Result 82 states and 166 transitions. [2020-10-22 00:43:49,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 00:43:49,011 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-10-22 00:43:49,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:43:49,012 INFO L225 Difference]: With dead ends: 82 [2020-10-22 00:43:49,012 INFO L226 Difference]: Without dead ends: 66 [2020-10-22 00:43:49,013 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:43:49,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-22 00:43:49,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-22 00:43:49,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-22 00:43:49,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 138 transitions. [2020-10-22 00:43:49,026 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 138 transitions. Word has length 7 [2020-10-22 00:43:49,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:43:49,027 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 138 transitions. [2020-10-22 00:43:49,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:43:49,027 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 138 transitions. [2020-10-22 00:43:49,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 00:43:49,028 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:43:49,028 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:43:49,028 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 00:43:49,028 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:43:49,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:43:49,029 INFO L82 PathProgramCache]: Analyzing trace with hash 722349434, now seen corresponding path program 1 times [2020-10-22 00:43:49,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:43:49,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496917094] [2020-10-22 00:43:49,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:43:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:43:49,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:43:49,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496917094] [2020-10-22 00:43:49,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:43:49,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:43:49,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1195394556] [2020-10-22 00:43:49,100 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:43:49,100 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:43:49,102 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 10 transitions. [2020-10-22 00:43:49,102 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:43:49,124 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:43:49,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:43:49,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:43:49,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:43:49,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:43:49,126 INFO L87 Difference]: Start difference. First operand 66 states and 138 transitions. Second operand 5 states. [2020-10-22 00:43:49,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:43:49,185 INFO L93 Difference]: Finished difference Result 72 states and 142 transitions. [2020-10-22 00:43:49,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 00:43:49,186 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-10-22 00:43:49,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:43:49,187 INFO L225 Difference]: With dead ends: 72 [2020-10-22 00:43:49,187 INFO L226 Difference]: Without dead ends: 60 [2020-10-22 00:43:49,188 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:43:49,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-22 00:43:49,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-22 00:43:49,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-22 00:43:49,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 122 transitions. [2020-10-22 00:43:49,195 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 122 transitions. Word has length 8 [2020-10-22 00:43:49,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:43:49,196 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 122 transitions. [2020-10-22 00:43:49,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:43:49,196 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 122 transitions. [2020-10-22 00:43:49,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 00:43:49,197 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:43:49,197 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:43:49,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 00:43:49,198 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:43:49,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:43:49,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1670451402, now seen corresponding path program 1 times [2020-10-22 00:43:49,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:43:49,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476446152] [2020-10-22 00:43:49,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:43:49,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:43:49,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:43:49,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476446152] [2020-10-22 00:43:49,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:43:49,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:43:49,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2021378467] [2020-10-22 00:43:49,276 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:43:49,276 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:43:49,278 INFO L252 McrAutomatonBuilder]: Finished intersection with 16 states and 22 transitions. [2020-10-22 00:43:49,279 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:43:49,358 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:43:49,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:43:49,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:43:49,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:43:49,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:43:49,360 INFO L87 Difference]: Start difference. First operand 60 states and 122 transitions. Second operand 5 states. [2020-10-22 00:43:49,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:43:49,407 INFO L93 Difference]: Finished difference Result 75 states and 147 transitions. [2020-10-22 00:43:49,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 00:43:49,408 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-22 00:43:49,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:43:49,409 INFO L225 Difference]: With dead ends: 75 [2020-10-22 00:43:49,409 INFO L226 Difference]: Without dead ends: 42 [2020-10-22 00:43:49,409 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-22 00:43:49,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-22 00:43:49,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-22 00:43:49,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-22 00:43:49,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 76 transitions. [2020-10-22 00:43:49,414 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 76 transitions. Word has length 9 [2020-10-22 00:43:49,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:43:49,415 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 76 transitions. [2020-10-22 00:43:49,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:43:49,415 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 76 transitions. [2020-10-22 00:43:49,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 00:43:49,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:43:49,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:43:49,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 00:43:49,416 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:43:49,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:43:49,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1631439828, now seen corresponding path program 1 times [2020-10-22 00:43:49,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:43:49,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820918511] [2020-10-22 00:43:49,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:43:49,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:43:49,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:43:49,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820918511] [2020-10-22 00:43:49,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:43:49,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:43:49,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [473027224] [2020-10-22 00:43:49,504 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:43:49,504 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:43:49,506 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 24 transitions. [2020-10-22 00:43:49,509 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:43:49,581 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:43:49,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:43:49,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:43:49,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:43:49,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:43:49,583 INFO L87 Difference]: Start difference. First operand 42 states and 76 transitions. Second operand 5 states. [2020-10-22 00:43:49,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:43:49,623 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2020-10-22 00:43:49,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 00:43:49,623 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-22 00:43:49,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:43:49,624 INFO L225 Difference]: With dead ends: 36 [2020-10-22 00:43:49,624 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 00:43:49,624 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-22 00:43:49,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 00:43:49,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 00:43:49,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 00:43:49,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 00:43:49,625 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-10-22 00:43:49,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:43:49,625 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 00:43:49,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:43:49,626 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 00:43:49,626 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 00:43:49,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 00:43:49,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 12:43:49 BasicIcfg [2020-10-22 00:43:49,630 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 00:43:49,632 INFO L168 Benchmark]: Toolchain (without parser) took 4219.65 ms. Allocated memory was 137.9 MB in the beginning and 251.1 MB in the end (delta: 113.2 MB). Free memory was 97.7 MB in the beginning and 199.1 MB in the end (delta: -101.4 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. [2020-10-22 00:43:49,632 INFO L168 Benchmark]: CDTParser took 2.67 ms. Allocated memory is still 137.9 MB. Free memory was 118.1 MB in the beginning and 117.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-22 00:43:49,633 INFO L168 Benchmark]: CACSL2BoogieTranslator took 760.25 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 96.9 MB in the beginning and 155.8 MB in the end (delta: -58.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2020-10-22 00:43:49,634 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.76 ms. Allocated memory is still 200.3 MB. Free memory was 155.8 MB in the beginning and 153.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-22 00:43:49,635 INFO L168 Benchmark]: Boogie Preprocessor took 25.86 ms. Allocated memory is still 200.3 MB. Free memory was 153.1 MB in the beginning and 151.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-22 00:43:49,636 INFO L168 Benchmark]: RCFGBuilder took 430.89 ms. Allocated memory is still 200.3 MB. Free memory was 151.7 MB in the beginning and 130.3 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2020-10-22 00:43:49,637 INFO L168 Benchmark]: TraceAbstraction took 2943.53 ms. Allocated memory was 200.3 MB in the beginning and 251.1 MB in the end (delta: 50.9 MB). Free memory was 129.7 MB in the beginning and 199.1 MB in the end (delta: -69.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-22 00:43:49,640 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.67 ms. Allocated memory is still 137.9 MB. Free memory was 118.1 MB in the beginning and 117.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 760.25 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 96.9 MB in the beginning and 155.8 MB in the end (delta: -58.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.76 ms. Allocated memory is still 200.3 MB. Free memory was 155.8 MB in the beginning and 153.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.86 ms. Allocated memory is still 200.3 MB. Free memory was 153.1 MB in the beginning and 151.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 430.89 ms. Allocated memory is still 200.3 MB. Free memory was 151.7 MB in the beginning and 130.3 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2943.53 ms. Allocated memory was 200.3 MB in the beginning and 251.1 MB in the end (delta: 50.9 MB). Free memory was 129.7 MB in the beginning and 199.1 MB in the end (delta: -69.5 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 449 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 23 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 69 PlacesBefore, 23 PlacesAfterwards, 65 TransitionsBefore, 17 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 66 TotalNumberOfCompositions, 1892 MoverChecksTotal - PositiveResult [Line: 17]: 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 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 71 SDtfs, 72 SDslu, 103 SDs, 0 SdLazy, 59 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 1144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...