/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/safe019_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-11 23:48:50,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-11 23:48:50,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-11 23:48:50,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-11 23:48:50,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-11 23:48:50,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-11 23:48:50,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-11 23:48:50,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-11 23:48:50,836 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-11 23:48:50,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-11 23:48:50,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-11 23:48:50,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-11 23:48:50,839 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-11 23:48:50,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-11 23:48:50,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-11 23:48:50,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-11 23:48:50,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-11 23:48:50,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-11 23:48:50,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-11 23:48:50,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-11 23:48:50,850 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-11 23:48:50,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-11 23:48:50,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-11 23:48:50,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-11 23:48:50,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-11 23:48:50,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-11 23:48:50,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-11 23:48:50,858 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-11 23:48:50,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-11 23:48:50,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-11 23:48:50,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-11 23:48:50,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-11 23:48:50,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-11 23:48:50,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-11 23:48:50,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-11 23:48:50,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-11 23:48:50,865 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-11 23:48:50,865 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-11 23:48:50,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-11 23:48:50,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-11 23:48:50,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-11 23:48:50,868 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-11 23:48:50,897 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-11 23:48:50,897 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-11 23:48:50,898 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-11 23:48:50,899 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-11 23:48:50,899 INFO L138 SettingsManager]: * Use SBE=true [2020-09-11 23:48:50,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-11 23:48:50,899 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-11 23:48:50,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-11 23:48:50,900 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-11 23:48:50,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-11 23:48:50,900 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-11 23:48:50,900 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-11 23:48:50,900 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-11 23:48:50,901 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-11 23:48:50,901 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-11 23:48:50,901 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-11 23:48:50,901 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-11 23:48:50,901 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-11 23:48:50,902 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-11 23:48:50,902 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-11 23:48:50,902 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-11 23:48:50,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 23:48:50,902 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-11 23:48:50,903 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-11 23:48:50,903 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-11 23:48:50,903 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-11 23:48:50,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-11 23:48:50,903 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-11 23:48:50,904 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-11 23:48:50,904 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-11 23:48:50,904 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-11 23:48:51,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-11 23:48:51,374 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-11 23:48:51,378 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-11 23:48:51,380 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-11 23:48:51,381 INFO L275 PluginConnector]: CDTParser initialized [2020-09-11 23:48:51,384 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2020-09-11 23:48:51,471 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0cd78b79a/06effad4581649888ecf0a34f289a8d9/FLAGeaad82151 [2020-09-11 23:48:52,089 INFO L306 CDTParser]: Found 1 translation units. [2020-09-11 23:48:52,090 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2020-09-11 23:48:52,121 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0cd78b79a/06effad4581649888ecf0a34f289a8d9/FLAGeaad82151 [2020-09-11 23:48:52,344 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0cd78b79a/06effad4581649888ecf0a34f289a8d9 [2020-09-11 23:48:52,358 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-11 23:48:52,364 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-11 23:48:52,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-11 23:48:52,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-11 23:48:52,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-11 23:48:52,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 11:48:52" (1/1) ... [2020-09-11 23:48:52,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42178c85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:48:52, skipping insertion in model container [2020-09-11 23:48:52,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 11:48:52" (1/1) ... [2020-09-11 23:48:52,383 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-11 23:48:52,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-11 23:48:52,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 23:48:52,986 INFO L203 MainTranslator]: Completed pre-run [2020-09-11 23:48:53,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 23:48:53,115 INFO L208 MainTranslator]: Completed translation [2020-09-11 23:48:53,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:48:53 WrapperNode [2020-09-11 23:48:53,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-11 23:48:53,117 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-11 23:48:53,117 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-11 23:48:53,117 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-11 23:48:53,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:48:53" (1/1) ... [2020-09-11 23:48:53,148 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:48:53" (1/1) ... [2020-09-11 23:48:53,173 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-11 23:48:53,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-11 23:48:53,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-11 23:48:53,174 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-11 23:48:53,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:48:53" (1/1) ... [2020-09-11 23:48:53,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:48:53" (1/1) ... [2020-09-11 23:48:53,187 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:48:53" (1/1) ... [2020-09-11 23:48:53,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:48:53" (1/1) ... [2020-09-11 23:48:53,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:48:53" (1/1) ... [2020-09-11 23:48:53,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:48:53" (1/1) ... [2020-09-11 23:48:53,201 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:48:53" (1/1) ... [2020-09-11 23:48:53,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-11 23:48:53,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-11 23:48:53,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-11 23:48:53,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-11 23:48:53,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:48:53" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 23:48:53,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-11 23:48:53,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-11 23:48:53,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-11 23:48:53,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-11 23:48:53,292 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-11 23:48:53,292 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-11 23:48:53,293 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-11 23:48:53,293 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-11 23:48:53,294 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-11 23:48:53,295 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-11 23:48:53,295 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-09-11 23:48:53,295 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-09-11 23:48:53,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-11 23:48:53,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-11 23:48:53,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-11 23:48:53,298 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-11 23:48:53,720 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-11 23:48:53,721 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-11 23:48:53,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 11:48:53 BoogieIcfgContainer [2020-09-11 23:48:53,726 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-11 23:48:53,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-11 23:48:53,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-11 23:48:53,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-11 23:48:53,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 11:48:52" (1/3) ... [2020-09-11 23:48:53,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12b0a2f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 11:48:53, skipping insertion in model container [2020-09-11 23:48:53,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:48:53" (2/3) ... [2020-09-11 23:48:53,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12b0a2f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 11:48:53, skipping insertion in model container [2020-09-11 23:48:53,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 11:48:53" (3/3) ... [2020-09-11 23:48:53,736 INFO L109 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc.i [2020-09-11 23:48:53,748 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-11 23:48:53,748 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-11 23:48:53,759 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-11 23:48:53,760 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-11 23:48:53,797 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,797 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,798 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,798 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,799 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,799 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,799 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,800 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,800 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,800 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,801 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,801 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,801 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,801 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,802 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,802 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,802 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,803 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,803 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,803 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,804 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,804 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,804 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,805 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,809 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,809 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,810 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,810 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,818 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,818 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,818 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,819 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,821 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,821 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,822 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,822 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,824 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,825 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,825 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,825 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:48:53,849 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-11 23:48:53,877 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-11 23:48:53,877 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-11 23:48:53,878 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-11 23:48:53,878 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-11 23:48:53,878 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-11 23:48:53,878 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-11 23:48:53,878 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-11 23:48:53,878 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-11 23:48:53,897 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 81 transitions, 182 flow [2020-09-11 23:48:53,900 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-09-11 23:48:53,973 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-09-11 23:48:53,973 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 23:48:53,979 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-11 23:48:53,983 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-09-11 23:48:54,007 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-09-11 23:48:54,008 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 23:48:54,009 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-11 23:48:54,018 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-09-11 23:48:54,019 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-11 23:48:55,574 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-09-11 23:48:55,717 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-09-11 23:48:55,792 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3093 [2020-09-11 23:48:55,793 INFO L214 etLargeBlockEncoding]: Total number of compositions: 65 [2020-09-11 23:48:55,797 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 25 transitions, 70 flow [2020-09-11 23:48:55,845 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-09-11 23:48:55,847 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-09-11 23:48:55,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-11 23:48:55,859 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:48:55,860 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:48:55,861 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:48:55,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:48:55,868 INFO L82 PathProgramCache]: Analyzing trace with hash -2005095105, now seen corresponding path program 1 times [2020-09-11 23:48:55,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:48:55,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879293631] [2020-09-11 23:48:55,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:48:56,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:48:56,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:48:56,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879293631] [2020-09-11 23:48:56,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:48:56,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-11 23:48:56,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1376635783] [2020-09-11 23:48:56,191 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:48:56,195 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:48:56,212 INFO L274 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-09-11 23:48:56,212 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:48:56,214 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:48:56,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 23:48:56,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:48:56,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 23:48:56,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 23:48:56,236 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-09-11 23:48:56,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:48:56,295 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-09-11 23:48:56,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 23:48:56,297 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-09-11 23:48:56,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:48:56,321 INFO L225 Difference]: With dead ends: 670 [2020-09-11 23:48:56,321 INFO L226 Difference]: Without dead ends: 526 [2020-09-11 23:48:56,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 23:48:56,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-09-11 23:48:56,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-09-11 23:48:56,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-09-11 23:48:56,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-09-11 23:48:56,468 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-09-11 23:48:56,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:48:56,470 INFO L479 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-09-11 23:48:56,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 23:48:56,471 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-09-11 23:48:56,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-11 23:48:56,474 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:48:56,474 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:48:56,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-11 23:48:56,475 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:48:56,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:48:56,476 INFO L82 PathProgramCache]: Analyzing trace with hash -2027540211, now seen corresponding path program 1 times [2020-09-11 23:48:56,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:48:56,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503326678] [2020-09-11 23:48:56,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:48:56,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:48:56,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:48:56,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503326678] [2020-09-11 23:48:56,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:48:56,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 23:48:56,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1919195425] [2020-09-11 23:48:56,632 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:48:56,633 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:48:56,636 INFO L274 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-09-11 23:48:56,636 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:48:56,694 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:48:56,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 23:48:56,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:48:56,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 23:48:56,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 23:48:56,697 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-09-11 23:48:56,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:48:56,731 INFO L93 Difference]: Finished difference Result 724 states and 2331 transitions. [2020-09-11 23:48:56,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-11 23:48:56,731 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-11 23:48:56,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:48:56,736 INFO L225 Difference]: With dead ends: 724 [2020-09-11 23:48:56,736 INFO L226 Difference]: Without dead ends: 412 [2020-09-11 23:48:56,737 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 23:48:56,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-09-11 23:48:56,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2020-09-11 23:48:56,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-09-11 23:48:56,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 1323 transitions. [2020-09-11 23:48:56,757 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 1323 transitions. Word has length 11 [2020-09-11 23:48:56,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:48:56,757 INFO L479 AbstractCegarLoop]: Abstraction has 412 states and 1323 transitions. [2020-09-11 23:48:56,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 23:48:56,758 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 1323 transitions. [2020-09-11 23:48:56,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-11 23:48:56,760 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:48:56,760 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:48:56,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-11 23:48:56,760 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:48:56,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:48:56,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1543893440, now seen corresponding path program 1 times [2020-09-11 23:48:56,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:48:56,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118104153] [2020-09-11 23:48:56,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:48:56,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:48:56,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:48:56,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118104153] [2020-09-11 23:48:56,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:48:56,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-11 23:48:56,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [791235223] [2020-09-11 23:48:56,845 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:48:56,847 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:48:56,849 INFO L274 McrAutomatonBuilder]: Finished intersection with 15 states and 16 transitions. [2020-09-11 23:48:56,849 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:48:56,859 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:48:56,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 23:48:56,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:48:56,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 23:48:56,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 23:48:56,860 INFO L87 Difference]: Start difference. First operand 412 states and 1323 transitions. Second operand 3 states. [2020-09-11 23:48:56,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:48:56,870 INFO L93 Difference]: Finished difference Result 394 states and 1254 transitions. [2020-09-11 23:48:56,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 23:48:56,871 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-09-11 23:48:56,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:48:56,874 INFO L225 Difference]: With dead ends: 394 [2020-09-11 23:48:56,874 INFO L226 Difference]: Without dead ends: 394 [2020-09-11 23:48:56,874 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 23:48:56,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-09-11 23:48:56,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-09-11 23:48:56,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-09-11 23:48:56,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1254 transitions. [2020-09-11 23:48:56,890 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1254 transitions. Word has length 12 [2020-09-11 23:48:56,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:48:56,890 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 1254 transitions. [2020-09-11 23:48:56,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 23:48:56,890 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1254 transitions. [2020-09-11 23:48:56,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-11 23:48:56,892 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:48:56,892 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:48:56,892 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-11 23:48:56,893 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:48:56,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:48:56,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1381595750, now seen corresponding path program 1 times [2020-09-11 23:48:56,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:48:56,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407026656] [2020-09-11 23:48:56,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:48:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:48:56,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:48:56,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407026656] [2020-09-11 23:48:56,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:48:56,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 23:48:56,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1489215887] [2020-09-11 23:48:56,957 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:48:56,958 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:48:56,961 INFO L274 McrAutomatonBuilder]: Finished intersection with 23 states and 31 transitions. [2020-09-11 23:48:56,962 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:48:56,987 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:48:56,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 23:48:56,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:48:56,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 23:48:56,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 23:48:56,988 INFO L87 Difference]: Start difference. First operand 394 states and 1254 transitions. Second operand 4 states. [2020-09-11 23:48:57,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:48:57,016 INFO L93 Difference]: Finished difference Result 652 states and 1957 transitions. [2020-09-11 23:48:57,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 23:48:57,017 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-11 23:48:57,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:48:57,020 INFO L225 Difference]: With dead ends: 652 [2020-09-11 23:48:57,020 INFO L226 Difference]: Without dead ends: 340 [2020-09-11 23:48:57,021 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 23:48:57,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-09-11 23:48:57,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 304. [2020-09-11 23:48:57,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-09-11 23:48:57,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 891 transitions. [2020-09-11 23:48:57,033 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 891 transitions. Word has length 13 [2020-09-11 23:48:57,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:48:57,033 INFO L479 AbstractCegarLoop]: Abstraction has 304 states and 891 transitions. [2020-09-11 23:48:57,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 23:48:57,033 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 891 transitions. [2020-09-11 23:48:57,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-11 23:48:57,034 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:48:57,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:48:57,035 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-11 23:48:57,035 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:48:57,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:48:57,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1391724752, now seen corresponding path program 1 times [2020-09-11 23:48:57,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:48:57,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583752915] [2020-09-11 23:48:57,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:48:57,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:48:57,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:48:57,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583752915] [2020-09-11 23:48:57,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:48:57,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 23:48:57,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1406068853] [2020-09-11 23:48:57,096 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:48:57,098 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:48:57,101 INFO L274 McrAutomatonBuilder]: Finished intersection with 23 states and 33 transitions. [2020-09-11 23:48:57,101 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:48:57,171 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:48:57,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 23:48:57,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:48:57,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 23:48:57,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 23:48:57,173 INFO L87 Difference]: Start difference. First operand 304 states and 891 transitions. Second operand 4 states. [2020-09-11 23:48:57,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:48:57,193 INFO L93 Difference]: Finished difference Result 406 states and 1128 transitions. [2020-09-11 23:48:57,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-11 23:48:57,194 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-11 23:48:57,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:48:57,196 INFO L225 Difference]: With dead ends: 406 [2020-09-11 23:48:57,196 INFO L226 Difference]: Without dead ends: 226 [2020-09-11 23:48:57,196 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 23:48:57,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-11 23:48:57,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-09-11 23:48:57,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-09-11 23:48:57,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 619 transitions. [2020-09-11 23:48:57,205 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 619 transitions. Word has length 13 [2020-09-11 23:48:57,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:48:57,205 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 619 transitions. [2020-09-11 23:48:57,205 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 23:48:57,205 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 619 transitions. [2020-09-11 23:48:57,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-11 23:48:57,206 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:48:57,206 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:48:57,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-11 23:48:57,207 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:48:57,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:48:57,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1162350155, now seen corresponding path program 1 times [2020-09-11 23:48:57,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:48:57,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936064883] [2020-09-11 23:48:57,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:48:57,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:48:57,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:48:57,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936064883] [2020-09-11 23:48:57,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:48:57,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 23:48:57,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1433442751] [2020-09-11 23:48:57,306 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:48:57,308 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:48:57,314 INFO L274 McrAutomatonBuilder]: Finished intersection with 33 states and 54 transitions. [2020-09-11 23:48:57,315 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:48:57,361 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:48:57,387 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:48:57,398 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:48:57,410 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:48:57,422 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:48:57,436 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:48:57,450 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:48:57,465 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:48:57,491 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:48:57,501 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:48:57,510 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:48:57,518 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [8106#(not (= 4 ~__unbuffered_cnt~0))] [2020-09-11 23:48:57,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 23:48:57,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:48:57,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 23:48:57,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-11 23:48:57,520 INFO L87 Difference]: Start difference. First operand 226 states and 619 transitions. Second operand 5 states. [2020-09-11 23:48:57,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:48:57,603 INFO L93 Difference]: Finished difference Result 243 states and 599 transitions. [2020-09-11 23:48:57,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-11 23:48:57,603 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-11 23:48:57,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:48:57,605 INFO L225 Difference]: With dead ends: 243 [2020-09-11 23:48:57,605 INFO L226 Difference]: Without dead ends: 162 [2020-09-11 23:48:57,606 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-11 23:48:57,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-09-11 23:48:57,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-09-11 23:48:57,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-09-11 23:48:57,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 369 transitions. [2020-09-11 23:48:57,611 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 369 transitions. Word has length 14 [2020-09-11 23:48:57,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:48:57,612 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 369 transitions. [2020-09-11 23:48:57,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 23:48:57,612 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 369 transitions. [2020-09-11 23:48:57,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-11 23:48:57,613 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:48:57,613 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:48:57,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-11 23:48:57,613 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:48:57,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:48:57,614 INFO L82 PathProgramCache]: Analyzing trace with hash -469082430, now seen corresponding path program 1 times [2020-09-11 23:48:57,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:48:57,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816494895] [2020-09-11 23:48:57,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:48:57,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:48:57,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:48:57,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816494895] [2020-09-11 23:48:57,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:48:57,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-11 23:48:57,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1020194670] [2020-09-11 23:48:57,756 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:48:57,758 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:48:57,763 INFO L274 McrAutomatonBuilder]: Finished intersection with 38 states and 62 transitions. [2020-09-11 23:48:57,764 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:48:57,773 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:48:57,791 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:48:57,813 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:48:57,890 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:48:57,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-11 23:48:57,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:48:57,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-11 23:48:57,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-11 23:48:57,891 INFO L87 Difference]: Start difference. First operand 162 states and 369 transitions. Second operand 6 states. [2020-09-11 23:48:57,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:48:57,949 INFO L93 Difference]: Finished difference Result 158 states and 337 transitions. [2020-09-11 23:48:57,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-11 23:48:57,949 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-09-11 23:48:57,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:48:57,950 INFO L225 Difference]: With dead ends: 158 [2020-09-11 23:48:57,951 INFO L226 Difference]: Without dead ends: 125 [2020-09-11 23:48:57,951 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-11 23:48:57,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-09-11 23:48:57,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-09-11 23:48:57,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-09-11 23:48:57,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 265 transitions. [2020-09-11 23:48:57,955 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 265 transitions. Word has length 16 [2020-09-11 23:48:57,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:48:57,956 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 265 transitions. [2020-09-11 23:48:57,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-11 23:48:57,956 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 265 transitions. [2020-09-11 23:48:57,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-11 23:48:57,957 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:48:57,957 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:48:57,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-11 23:48:57,957 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:48:57,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:48:57,958 INFO L82 PathProgramCache]: Analyzing trace with hash 483879941, now seen corresponding path program 1 times [2020-09-11 23:48:57,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:48:57,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304465433] [2020-09-11 23:48:57,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:48:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:48:58,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:48:58,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304465433] [2020-09-11 23:48:58,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:48:58,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-11 23:48:58,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1306942921] [2020-09-11 23:48:58,059 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:48:58,061 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:48:58,067 INFO L274 McrAutomatonBuilder]: Finished intersection with 40 states and 58 transitions. [2020-09-11 23:48:58,067 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:48:58,074 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:48:58,121 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:48:58,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-11 23:48:58,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:48:58,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-11 23:48:58,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-11 23:48:58,123 INFO L87 Difference]: Start difference. First operand 125 states and 265 transitions. Second operand 7 states. [2020-09-11 23:48:58,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:48:58,212 INFO L93 Difference]: Finished difference Result 120 states and 253 transitions. [2020-09-11 23:48:58,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-11 23:48:58,213 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-09-11 23:48:58,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:48:58,214 INFO L225 Difference]: With dead ends: 120 [2020-09-11 23:48:58,214 INFO L226 Difference]: Without dead ends: 71 [2020-09-11 23:48:58,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-11 23:48:58,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-09-11 23:48:58,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-09-11 23:48:58,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-09-11 23:48:58,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-09-11 23:48:58,217 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 18 [2020-09-11 23:48:58,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:48:58,218 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-09-11 23:48:58,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-11 23:48:58,218 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-09-11 23:48:58,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-11 23:48:58,219 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:48:58,219 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:48:58,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-11 23:48:58,220 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:48:58,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:48:58,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1087350585, now seen corresponding path program 1 times [2020-09-11 23:48:58,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:48:58,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072711609] [2020-09-11 23:48:58,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:48:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:48:58,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:48:58,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072711609] [2020-09-11 23:48:58,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:48:58,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 23:48:58,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [30397625] [2020-09-11 23:48:58,287 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:48:58,289 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:48:58,297 INFO L274 McrAutomatonBuilder]: Finished intersection with 44 states and 63 transitions. [2020-09-11 23:48:58,297 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:48:58,325 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:48:58,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 23:48:58,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:48:58,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 23:48:58,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 23:48:58,326 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-09-11 23:48:58,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:48:58,337 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-09-11 23:48:58,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-11 23:48:58,338 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-09-11 23:48:58,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:48:58,338 INFO L225 Difference]: With dead ends: 70 [2020-09-11 23:48:58,338 INFO L226 Difference]: Without dead ends: 0 [2020-09-11 23:48:58,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 23:48:58,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-11 23:48:58,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-11 23:48:58,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-11 23:48:58,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-11 23:48:58,340 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-09-11 23:48:58,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:48:58,340 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-11 23:48:58,340 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 23:48:58,340 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-11 23:48:58,341 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-11 23:48:58,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-11 23:48:58,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 11:48:58 BasicIcfg [2020-09-11 23:48:58,346 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-11 23:48:58,348 INFO L168 Benchmark]: Toolchain (without parser) took 5988.45 ms. Allocated memory was 139.5 MB in the beginning and 288.9 MB in the end (delta: 149.4 MB). Free memory was 101.2 MB in the beginning and 140.7 MB in the end (delta: -39.5 MB). Peak memory consumption was 109.9 MB. Max. memory is 7.1 GB. [2020-09-11 23:48:58,349 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-11 23:48:58,350 INFO L168 Benchmark]: CACSL2BoogieTranslator took 751.57 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 100.5 MB in the beginning and 159.9 MB in the end (delta: -59.4 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2020-09-11 23:48:58,350 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.01 ms. Allocated memory is still 202.9 MB. Free memory was 159.9 MB in the beginning and 157.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-11 23:48:58,351 INFO L168 Benchmark]: Boogie Preprocessor took 30.26 ms. Allocated memory is still 202.9 MB. Free memory was 157.9 MB in the beginning and 156.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-11 23:48:58,352 INFO L168 Benchmark]: RCFGBuilder took 521.92 ms. Allocated memory is still 202.9 MB. Free memory was 156.5 MB in the beginning and 132.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-09-11 23:48:58,353 INFO L168 Benchmark]: TraceAbstraction took 4617.83 ms. Allocated memory was 202.9 MB in the beginning and 288.9 MB in the end (delta: 86.0 MB). Free memory was 131.7 MB in the beginning and 140.7 MB in the end (delta: -9.0 MB). Peak memory consumption was 77.0 MB. Max. memory is 7.1 GB. [2020-09-11 23:48:58,357 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 751.57 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 100.5 MB in the beginning and 159.9 MB in the end (delta: -59.4 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 57.01 ms. Allocated memory is still 202.9 MB. Free memory was 159.9 MB in the beginning and 157.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.26 ms. Allocated memory is still 202.9 MB. Free memory was 157.9 MB in the beginning and 156.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 521.92 ms. Allocated memory is still 202.9 MB. Free memory was 156.5 MB in the beginning and 132.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4617.83 ms. Allocated memory was 202.9 MB in the beginning and 288.9 MB in the end (delta: 86.0 MB). Free memory was 131.7 MB in the beginning and 140.7 MB in the end (delta: -9.0 MB). Peak memory consumption was 77.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.8s, 92 ProgramPointsBefore, 38 ProgramPointsAfterwards, 81 TransitionsBefore, 25 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 944 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 3093 CheckedPairsTotal, 65 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 5 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.4s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 198 SDtfs, 183 SDslu, 295 SDs, 0 SdLazy, 161 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 167 GetRequests, 131 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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, 9 MinimizatonAttempts, 36 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 127 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 4842 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...