/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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 23:37:45,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 23:37:45,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 23:37:45,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 23:37:45,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 23:37:45,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 23:37:45,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 23:37:45,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 23:37:45,861 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 23:37:45,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 23:37:45,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 23:37:45,866 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 23:37:45,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 23:37:45,867 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 23:37:45,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 23:37:45,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 23:37:45,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 23:37:45,876 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 23:37:45,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 23:37:45,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 23:37:45,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 23:37:45,886 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 23:37:45,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 23:37:45,888 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 23:37:45,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 23:37:45,902 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 23:37:45,903 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 23:37:45,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 23:37:45,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 23:37:45,905 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 23:37:45,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 23:37:45,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 23:37:45,906 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 23:37:45,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 23:37:45,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 23:37:45,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 23:37:45,910 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.epf [2020-10-05 23:37:45,958 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 23:37:45,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 23:37:45,960 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 23:37:45,960 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 23:37:45,960 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 23:37:45,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 23:37:45,961 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 23:37:45,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 23:37:45,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 23:37:45,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 23:37:45,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 23:37:45,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 23:37:45,963 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 23:37:45,964 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 23:37:45,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 23:37:45,964 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 23:37:45,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 23:37:45,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 23:37:45,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 23:37:45,965 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 23:37:45,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 23:37:45,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 23:37:45,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 23:37:45,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-05 23:37:45,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 23:37:45,966 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 23:37:45,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 23:37:45,966 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-05 23:37:45,967 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 23:37:46,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 23:37:46,281 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 23:37:46,288 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 23:37:46,290 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 23:37:46,291 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 23:37:46,292 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i [2020-10-05 23:37:46,353 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a96fa487/a792babc20dc4ce2ae955f9f2380753d/FLAGbf6613fc8 [2020-10-05 23:37:46,828 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 23:37:46,829 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i [2020-10-05 23:37:46,844 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a96fa487/a792babc20dc4ce2ae955f9f2380753d/FLAGbf6613fc8 [2020-10-05 23:37:46,858 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a96fa487/a792babc20dc4ce2ae955f9f2380753d [2020-10-05 23:37:46,865 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 23:37:46,867 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 23:37:46,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 23:37:46,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 23:37:46,871 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 23:37:46,872 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:37:46" (1/1) ... [2020-10-05 23:37:46,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@264d296e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:37:46, skipping insertion in model container [2020-10-05 23:37:46,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:37:46" (1/1) ... [2020-10-05 23:37:46,881 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 23:37:46,926 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 23:37:47,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:37:47,435 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 23:37:47,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:37:47,569 INFO L208 MainTranslator]: Completed translation [2020-10-05 23:37:47,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:37:47 WrapperNode [2020-10-05 23:37:47,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 23:37:47,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 23:37:47,571 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 23:37:47,571 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 23:37:47,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:37:47" (1/1) ... [2020-10-05 23:37:47,597 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:37:47" (1/1) ... [2020-10-05 23:37:47,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 23:37:47,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 23:37:47,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 23:37:47,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 23:37:47,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:37:47" (1/1) ... [2020-10-05 23:37:47,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:37:47" (1/1) ... [2020-10-05 23:37:47,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:37:47" (1/1) ... [2020-10-05 23:37:47,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:37:47" (1/1) ... [2020-10-05 23:37:47,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:37:47" (1/1) ... [2020-10-05 23:37:47,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:37:47" (1/1) ... [2020-10-05 23:37:47,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:37:47" (1/1) ... [2020-10-05 23:37:47,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 23:37:47,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 23:37:47,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 23:37:47,645 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 23:37:47,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:37:47" (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 [2020-10-05 23:37:47,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 23:37:47,719 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-05 23:37:47,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 23:37:47,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 23:37:47,720 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-05 23:37:47,720 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-05 23:37:47,720 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-05 23:37:47,721 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-05 23:37:47,721 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-05 23:37:47,721 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-05 23:37:47,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-05 23:37:47,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 23:37:47,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 23:37:47,724 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 23:37:48,143 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 23:37:48,143 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-05 23:37:48,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:37:48 BoogieIcfgContainer [2020-10-05 23:37:48,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 23:37:48,147 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 23:37:48,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 23:37:48,151 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 23:37:48,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 11:37:46" (1/3) ... [2020-10-05 23:37:48,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1da6ef5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:37:48, skipping insertion in model container [2020-10-05 23:37:48,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:37:47" (2/3) ... [2020-10-05 23:37:48,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1da6ef5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:37:48, skipping insertion in model container [2020-10-05 23:37:48,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:37:48" (3/3) ... [2020-10-05 23:37:48,156 INFO L109 eAbstractionObserver]: Analyzing ICFG safe001_tso.opt.i [2020-10-05 23:37:48,167 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 23:37:48,168 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-05 23:37:48,176 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-05 23:37:48,177 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 23:37:48,207 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,207 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,208 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,208 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,209 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,209 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,209 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,210 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,210 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,210 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,211 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,211 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,211 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,212 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,212 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,212 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,213 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,213 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,217 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,217 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,218 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,218 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,225 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,226 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,226 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,226 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,228 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,229 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,229 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,229 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:37:48,247 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-05 23:37:48,271 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 23:37:48,271 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 23:37:48,271 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-05 23:37:48,271 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 23:37:48,272 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 23:37:48,272 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 23:37:48,272 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 23:37:48,272 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 23:37:48,289 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-05 23:37:48,292 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-05 23:37:48,337 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-05 23:37:48,338 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 23:37:48,343 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 54 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. [2020-10-05 23:37:48,346 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-05 23:37:48,366 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-05 23:37:48,367 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 23:37:48,367 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 54 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. [2020-10-05 23:37:48,370 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-10-05 23:37:48,371 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-05 23:37:49,802 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2483 [2020-10-05 23:37:49,802 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-10-05 23:37:49,806 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-05 23:37:49,831 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-05 23:37:49,834 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-05 23:37:49,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-05 23:37:49,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:37:49,844 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:37:49,844 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:37:49,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:37:49,850 INFO L82 PathProgramCache]: Analyzing trace with hash -245765301, now seen corresponding path program 1 times [2020-10-05 23:37:49,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:37:49,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891624232] [2020-10-05 23:37:49,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:37:49,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:37:50,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:37:50,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891624232] [2020-10-05 23:37:50,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:37:50,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 23:37:50,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956323975] [2020-10-05 23:37:50,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:37:50,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:37:50,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:37:50,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:37:50,100 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-05 23:37:50,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:37:50,150 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-10-05 23:37:50,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:37:50,152 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-05 23:37:50,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:37:50,170 INFO L225 Difference]: With dead ends: 290 [2020-10-05 23:37:50,171 INFO L226 Difference]: Without dead ends: 226 [2020-10-05 23:37:50,172 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 [2020-10-05 23:37:50,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-05 23:37:50,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-05 23:37:50,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-05 23:37:50,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-10-05 23:37:50,261 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-10-05 23:37:50,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:37:50,262 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-10-05 23:37:50,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:37:50,263 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-10-05 23:37:50,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 23:37:50,269 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:37:50,269 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:37:50,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 23:37:50,270 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:37:50,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:37:50,270 INFO L82 PathProgramCache]: Analyzing trace with hash 956609449, now seen corresponding path program 1 times [2020-10-05 23:37:50,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:37:50,271 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753555096] [2020-10-05 23:37:50,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:37:50,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:37:50,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:37:50,400 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753555096] [2020-10-05 23:37:50,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:37:50,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 23:37:50,401 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040622664] [2020-10-05 23:37:50,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:37:50,402 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:37:50,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:37:50,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:37:50,403 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states. [2020-10-05 23:37:50,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:37:50,412 INFO L93 Difference]: Finished difference Result 212 states and 578 transitions. [2020-10-05 23:37:50,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:37:50,413 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-05 23:37:50,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:37:50,418 INFO L225 Difference]: With dead ends: 212 [2020-10-05 23:37:50,418 INFO L226 Difference]: Without dead ends: 212 [2020-10-05 23:37:50,419 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 [2020-10-05 23:37:50,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-10-05 23:37:50,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2020-10-05 23:37:50,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-10-05 23:37:50,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 578 transitions. [2020-10-05 23:37:50,439 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 578 transitions. Word has length 9 [2020-10-05 23:37:50,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:37:50,440 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 578 transitions. [2020-10-05 23:37:50,440 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:37:50,440 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 578 transitions. [2020-10-05 23:37:50,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-05 23:37:50,441 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:37:50,442 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:37:50,442 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 23:37:50,442 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:37:50,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:37:50,443 INFO L82 PathProgramCache]: Analyzing trace with hash -409878926, now seen corresponding path program 1 times [2020-10-05 23:37:50,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:37:50,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237508501] [2020-10-05 23:37:50,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:37:50,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:37:50,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:37:50,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237508501] [2020-10-05 23:37:50,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:37:50,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:37:50,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382645324] [2020-10-05 23:37:50,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:37:50,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:37:50,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:37:50,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:37:50,503 INFO L87 Difference]: Start difference. First operand 212 states and 578 transitions. Second operand 4 states. [2020-10-05 23:37:50,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:37:50,533 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-10-05 23:37:50,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 23:37:50,534 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-05 23:37:50,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:37:50,535 INFO L225 Difference]: With dead ends: 242 [2020-10-05 23:37:50,536 INFO L226 Difference]: Without dead ends: 146 [2020-10-05 23:37:50,536 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 [2020-10-05 23:37:50,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-05 23:37:50,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-10-05 23:37:50,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-05 23:37:50,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-10-05 23:37:50,547 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 10 [2020-10-05 23:37:50,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:37:50,548 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-10-05 23:37:50,548 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:37:50,548 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-10-05 23:37:50,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 23:37:50,549 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:37:50,549 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:37:50,550 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 23:37:50,550 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:37:50,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:37:50,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1304596236, now seen corresponding path program 1 times [2020-10-05 23:37:50,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:37:50,551 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367985519] [2020-10-05 23:37:50,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:37:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:37:50,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:37:50,592 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367985519] [2020-10-05 23:37:50,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:37:50,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 23:37:50,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995866058] [2020-10-05 23:37:50,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:37:50,593 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:37:50,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:37:50,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:37:50,594 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 3 states. [2020-10-05 23:37:50,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:37:50,600 INFO L93 Difference]: Finished difference Result 140 states and 343 transitions. [2020-10-05 23:37:50,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:37:50,600 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-05 23:37:50,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:37:50,602 INFO L225 Difference]: With dead ends: 140 [2020-10-05 23:37:50,602 INFO L226 Difference]: Without dead ends: 140 [2020-10-05 23:37:50,603 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 [2020-10-05 23:37:50,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-05 23:37:50,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-10-05 23:37:50,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-05 23:37:50,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 343 transitions. [2020-10-05 23:37:50,611 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 343 transitions. Word has length 11 [2020-10-05 23:37:50,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:37:50,611 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 343 transitions. [2020-10-05 23:37:50,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:37:50,611 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 343 transitions. [2020-10-05 23:37:50,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 23:37:50,613 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:37:50,613 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:37:50,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 23:37:50,613 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:37:50,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:37:50,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1352113053, now seen corresponding path program 1 times [2020-10-05 23:37:50,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:37:50,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466637488] [2020-10-05 23:37:50,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:37:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:37:50,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:37:50,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466637488] [2020-10-05 23:37:50,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:37:50,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:37:50,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896975363] [2020-10-05 23:37:50,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:37:50,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:37:50,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:37:50,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:37:50,660 INFO L87 Difference]: Start difference. First operand 140 states and 343 transitions. Second operand 4 states. [2020-10-05 23:37:50,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:37:50,680 INFO L93 Difference]: Finished difference Result 200 states and 485 transitions. [2020-10-05 23:37:50,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 23:37:50,681 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-05 23:37:50,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:37:50,682 INFO L225 Difference]: With dead ends: 200 [2020-10-05 23:37:50,682 INFO L226 Difference]: Without dead ends: 110 [2020-10-05 23:37:50,682 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 [2020-10-05 23:37:50,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-05 23:37:50,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-10-05 23:37:50,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-05 23:37:50,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 265 transitions. [2020-10-05 23:37:50,689 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 265 transitions. Word has length 12 [2020-10-05 23:37:50,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:37:50,689 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 265 transitions. [2020-10-05 23:37:50,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:37:50,689 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 265 transitions. [2020-10-05 23:37:50,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 23:37:50,690 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:37:50,690 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:37:50,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 23:37:50,691 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:37:50,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:37:50,691 INFO L82 PathProgramCache]: Analyzing trace with hash -2097233879, now seen corresponding path program 2 times [2020-10-05 23:37:50,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:37:50,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956541681] [2020-10-05 23:37:50,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:37:50,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:37:50,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:37:50,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956541681] [2020-10-05 23:37:50,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:37:50,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 23:37:50,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654444476] [2020-10-05 23:37:50,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:37:50,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:37:50,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:37:50,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:37:50,729 INFO L87 Difference]: Start difference. First operand 110 states and 265 transitions. Second operand 4 states. [2020-10-05 23:37:50,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:37:50,750 INFO L93 Difference]: Finished difference Result 128 states and 298 transitions. [2020-10-05 23:37:50,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 23:37:50,751 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-05 23:37:50,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:37:50,751 INFO L225 Difference]: With dead ends: 128 [2020-10-05 23:37:50,752 INFO L226 Difference]: Without dead ends: 68 [2020-10-05 23:37:50,752 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 [2020-10-05 23:37:50,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-05 23:37:50,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-10-05 23:37:50,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-05 23:37:50,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2020-10-05 23:37:50,756 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 12 [2020-10-05 23:37:50,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:37:50,756 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2020-10-05 23:37:50,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:37:50,756 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-10-05 23:37:50,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-05 23:37:50,757 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:37:50,757 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:37:50,757 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-05 23:37:50,758 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:37:50,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:37:50,758 INFO L82 PathProgramCache]: Analyzing trace with hash 413415217, now seen corresponding path program 1 times [2020-10-05 23:37:50,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:37:50,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371264440] [2020-10-05 23:37:50,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:37:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:37:50,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:37:50,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371264440] [2020-10-05 23:37:50,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:37:50,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:37:50,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012016841] [2020-10-05 23:37:50,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:37:50,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:37:50,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:37:50,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:37:50,844 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 4 states. [2020-10-05 23:37:50,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:37:50,872 INFO L93 Difference]: Finished difference Result 81 states and 157 transitions. [2020-10-05 23:37:50,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 23:37:50,873 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-05 23:37:50,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:37:50,874 INFO L225 Difference]: With dead ends: 81 [2020-10-05 23:37:50,874 INFO L226 Difference]: Without dead ends: 59 [2020-10-05 23:37:50,874 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 [2020-10-05 23:37:50,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-05 23:37:50,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-10-05 23:37:50,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-05 23:37:50,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 114 transitions. [2020-10-05 23:37:50,877 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 114 transitions. Word has length 13 [2020-10-05 23:37:50,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:37:50,878 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 114 transitions. [2020-10-05 23:37:50,878 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:37:50,878 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 114 transitions. [2020-10-05 23:37:50,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-05 23:37:50,879 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:37:50,879 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:37:50,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-05 23:37:50,879 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:37:50,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:37:50,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1574125730, now seen corresponding path program 1 times [2020-10-05 23:37:50,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:37:50,880 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609196317] [2020-10-05 23:37:50,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:37:50,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:37:50,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:37:50,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609196317] [2020-10-05 23:37:50,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:37:50,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 23:37:50,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624086995] [2020-10-05 23:37:50,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 23:37:50,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:37:50,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 23:37:50,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:37:50,935 INFO L87 Difference]: Start difference. First operand 59 states and 114 transitions. Second operand 5 states. [2020-10-05 23:37:50,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:37:50,989 INFO L93 Difference]: Finished difference Result 60 states and 104 transitions. [2020-10-05 23:37:50,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 23:37:50,993 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-05 23:37:50,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:37:50,994 INFO L225 Difference]: With dead ends: 60 [2020-10-05 23:37:50,994 INFO L226 Difference]: Without dead ends: 45 [2020-10-05 23:37:50,995 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 [2020-10-05 23:37:50,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-05 23:37:50,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-10-05 23:37:50,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-05 23:37:50,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 74 transitions. [2020-10-05 23:37:50,997 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 74 transitions. Word has length 14 [2020-10-05 23:37:50,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:37:50,997 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 74 transitions. [2020-10-05 23:37:50,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 23:37:50,998 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 74 transitions. [2020-10-05 23:37:50,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 23:37:50,998 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:37:50,998 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:37:50,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-05 23:37:50,999 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:37:50,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:37:50,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1126720068, now seen corresponding path program 1 times [2020-10-05 23:37:51,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:37:51,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540818395] [2020-10-05 23:37:51,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:37:51,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:37:51,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:37:51,056 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540818395] [2020-10-05 23:37:51,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:37:51,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 23:37:51,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902734137] [2020-10-05 23:37:51,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-05 23:37:51,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:37:51,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-05 23:37:51,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-05 23:37:51,058 INFO L87 Difference]: Start difference. First operand 45 states and 74 transitions. Second operand 6 states. [2020-10-05 23:37:51,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:37:51,101 INFO L93 Difference]: Finished difference Result 42 states and 66 transitions. [2020-10-05 23:37:51,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-05 23:37:51,101 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-05 23:37:51,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:37:51,102 INFO L225 Difference]: With dead ends: 42 [2020-10-05 23:37:51,102 INFO L226 Difference]: Without dead ends: 36 [2020-10-05 23:37:51,103 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 [2020-10-05 23:37:51,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-05 23:37:51,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-05 23:37:51,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-05 23:37:51,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-10-05 23:37:51,105 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 15 [2020-10-05 23:37:51,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:37:51,105 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-10-05 23:37:51,105 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-05 23:37:51,105 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-10-05 23:37:51,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-05 23:37:51,106 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:37:51,106 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:37:51,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-05 23:37:51,106 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:37:51,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:37:51,107 INFO L82 PathProgramCache]: Analyzing trace with hash 392863110, now seen corresponding path program 1 times [2020-10-05 23:37:51,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:37:51,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450125968] [2020-10-05 23:37:51,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:37:51,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:37:51,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:37:51,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450125968] [2020-10-05 23:37:51,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:37:51,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:37:51,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111516787] [2020-10-05 23:37:51,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:37:51,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:37:51,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:37:51,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:37:51,134 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 3 states. [2020-10-05 23:37:51,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:37:51,138 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-10-05 23:37:51,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:37:51,138 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-05 23:37:51,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:37:51,139 INFO L225 Difference]: With dead ends: 35 [2020-10-05 23:37:51,139 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 23:37:51,139 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 [2020-10-05 23:37:51,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 23:37:51,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 23:37:51,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 23:37:51,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 23:37:51,140 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-05 23:37:51,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:37:51,140 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 23:37:51,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:37:51,140 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 23:37:51,140 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 23:37:51,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-05 23:37:51,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 11:37:51 BasicIcfg [2020-10-05 23:37:51,145 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 23:37:51,147 INFO L168 Benchmark]: Toolchain (without parser) took 4279.63 ms. Allocated memory was 147.8 MB in the beginning and 244.3 MB in the end (delta: 96.5 MB). Free memory was 102.3 MB in the beginning and 162.1 MB in the end (delta: -59.8 MB). Peak memory consumption was 36.6 MB. Max. memory is 7.1 GB. [2020-10-05 23:37:51,148 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 147.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-05 23:37:51,149 INFO L168 Benchmark]: CACSL2BoogieTranslator took 702.40 ms. Allocated memory was 147.8 MB in the beginning and 207.6 MB in the end (delta: 59.8 MB). Free memory was 102.1 MB in the beginning and 164.9 MB in the end (delta: -62.8 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-10-05 23:37:51,150 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.08 ms. Allocated memory is still 207.6 MB. Free memory was 164.9 MB in the beginning and 162.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-05 23:37:51,151 INFO L168 Benchmark]: Boogie Preprocessor took 24.95 ms. Allocated memory is still 207.6 MB. Free memory was 162.3 MB in the beginning and 161.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-05 23:37:51,151 INFO L168 Benchmark]: RCFGBuilder took 500.85 ms. Allocated memory is still 207.6 MB. Free memory was 161.0 MB in the beginning and 138.9 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-10-05 23:37:51,152 INFO L168 Benchmark]: TraceAbstraction took 2997.34 ms. Allocated memory was 207.6 MB in the beginning and 244.3 MB in the end (delta: 36.7 MB). Free memory was 138.2 MB in the beginning and 162.1 MB in the end (delta: -23.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-10-05 23:37:51,156 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 147.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 702.40 ms. Allocated memory was 147.8 MB in the beginning and 207.6 MB in the end (delta: 59.8 MB). Free memory was 102.1 MB in the beginning and 164.9 MB in the end (delta: -62.8 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.08 ms. Allocated memory is still 207.6 MB. Free memory was 164.9 MB in the beginning and 162.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.95 ms. Allocated memory is still 207.6 MB. Free memory was 162.3 MB in the beginning and 161.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 500.85 ms. Allocated memory is still 207.6 MB. Free memory was 161.0 MB in the beginning and 138.9 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2997.34 ms. Allocated memory was 207.6 MB in the beginning and 244.3 MB in the end (delta: 36.7 MB). Free memory was 138.2 MB in the beginning and 162.1 MB in the end (delta: -23.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 77 ProgramPointsBefore, 31 ProgramPointsAfterwards, 69 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 656 VarBasedMoverChecksPositive, 23 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2483 CheckedPairsTotal, 57 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: 2.8s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 175 SDtfs, 127 SDslu, 184 SDs, 0 SdLazy, 118 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 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, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 3865 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...