/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 18:34:19,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 18:34:19,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 18:34:19,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 18:34:19,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 18:34:19,773 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 18:34:19,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 18:34:19,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 18:34:19,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 18:34:19,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 18:34:19,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 18:34:19,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 18:34:19,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 18:34:19,791 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 18:34:19,792 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 18:34:19,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 18:34:19,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 18:34:19,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 18:34:19,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 18:34:19,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 18:34:19,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 18:34:19,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 18:34:19,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 18:34:19,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 18:34:19,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 18:34:19,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 18:34:19,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 18:34:19,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 18:34:19,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 18:34:19,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 18:34:19,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 18:34:19,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 18:34:19,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 18:34:19,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 18:34:19,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 18:34:19,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 18:34:19,831 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 18:34:19,873 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 18:34:19,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 18:34:19,874 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 18:34:19,875 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 18:34:19,875 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 18:34:19,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 18:34:19,875 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 18:34:19,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 18:34:19,876 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 18:34:19,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 18:34:19,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 18:34:19,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 18:34:19,877 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 18:34:19,878 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 18:34:19,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 18:34:19,878 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 18:34:19,878 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 18:34:19,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 18:34:19,879 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 18:34:19,879 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 18:34:19,879 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 18:34:19,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:34:19,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 18:34:19,880 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 18:34:19,880 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 18:34:19,880 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 18:34:19,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 18:34:19,880 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 18:34:19,881 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 18:34:19,881 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 18:34:20,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 18:34:20,168 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 18:34:20,172 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 18:34:20,173 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 18:34:20,174 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 18:34:20,174 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i [2020-10-15 18:34:20,234 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9484ca31/5dafc9b0573b48ef95c87506fd65d224/FLAG81e2f90bd [2020-10-15 18:34:20,771 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 18:34:20,772 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i [2020-10-15 18:34:20,786 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9484ca31/5dafc9b0573b48ef95c87506fd65d224/FLAG81e2f90bd [2020-10-15 18:34:21,063 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9484ca31/5dafc9b0573b48ef95c87506fd65d224 [2020-10-15 18:34:21,072 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 18:34:21,074 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 18:34:21,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 18:34:21,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 18:34:21,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 18:34:21,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:34:21" (1/1) ... [2020-10-15 18:34:21,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ebf64a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:21, skipping insertion in model container [2020-10-15 18:34:21,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:34:21" (1/1) ... [2020-10-15 18:34:21,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 18:34:21,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 18:34:21,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:34:21,637 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 18:34:21,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:34:21,753 INFO L208 MainTranslator]: Completed translation [2020-10-15 18:34:21,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:21 WrapperNode [2020-10-15 18:34:21,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 18:34:21,755 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 18:34:21,755 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 18:34:21,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 18:34:21,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:21" (1/1) ... [2020-10-15 18:34:21,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:21" (1/1) ... [2020-10-15 18:34:21,804 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 18:34:21,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 18:34:21,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 18:34:21,805 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 18:34:21,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:21" (1/1) ... [2020-10-15 18:34:21,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:21" (1/1) ... [2020-10-15 18:34:21,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:21" (1/1) ... [2020-10-15 18:34:21,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:21" (1/1) ... [2020-10-15 18:34:21,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:21" (1/1) ... [2020-10-15 18:34:21,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:21" (1/1) ... [2020-10-15 18:34:21,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:21" (1/1) ... [2020-10-15 18:34:21,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 18:34:21,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 18:34:21,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 18:34:21,832 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 18:34:21,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:21" (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 [2020-10-15 18:34:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 18:34:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 18:34:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 18:34:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 18:34:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 18:34:21,899 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 18:34:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 18:34:21,900 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 18:34:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 18:34:21,901 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 18:34:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-15 18:34:21,901 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-15 18:34:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 18:34:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 18:34:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 18:34:21,903 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 18:34:22,284 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 18:34:22,285 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 18:34:22,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:34:22 BoogieIcfgContainer [2020-10-15 18:34:22,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 18:34:22,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 18:34:22,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 18:34:22,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 18:34:22,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:34:21" (1/3) ... [2020-10-15 18:34:22,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b85fd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:34:22, skipping insertion in model container [2020-10-15 18:34:22,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:21" (2/3) ... [2020-10-15 18:34:22,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b85fd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:34:22, skipping insertion in model container [2020-10-15 18:34:22,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:34:22" (3/3) ... [2020-10-15 18:34:22,296 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_tso.oepc.i [2020-10-15 18:34:22,308 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 18:34:22,308 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 18:34:22,316 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 18:34:22,317 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 18:34:22,347 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,347 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,347 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,348 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,348 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,348 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,349 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,349 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,349 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,349 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,350 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,350 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,350 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,350 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,351 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,351 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,351 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,351 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,352 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,352 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,352 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,352 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,353 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,353 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,357 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,357 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,357 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,358 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,365 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,365 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,365 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,365 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,368 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,368 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,368 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,368 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,370 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,371 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,371 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,371 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:22,387 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-15 18:34:22,405 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:34:22,405 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:34:22,405 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:34:22,405 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:34:22,405 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:34:22,405 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:34:22,405 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:34:22,405 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:34:22,417 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:34:22,420 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 80 transitions, 180 flow [2020-10-15 18:34:22,423 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 80 transitions, 180 flow [2020-10-15 18:34:22,425 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 80 transitions, 180 flow [2020-10-15 18:34:22,471 INFO L129 PetriNetUnfolder]: 2/76 cut-off events. [2020-10-15 18:34:22,471 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 18:34:22,477 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 76 events. 2/76 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. 0/73 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-15 18:34:22,481 INFO L117 LiptonReduction]: Number of co-enabled transitions 1822 [2020-10-15 18:34:24,060 INFO L132 LiptonReduction]: Checked pairs total: 3057 [2020-10-15 18:34:24,060 INFO L134 LiptonReduction]: Total number of compositions: 63 [2020-10-15 18:34:24,067 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-10-15 18:34:24,131 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-10-15 18:34:24,134 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-10-15 18:34:24,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 18:34:24,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:24,146 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:24,146 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:24,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:24,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1118879254, now seen corresponding path program 1 times [2020-10-15 18:34:24,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:24,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78078024] [2020-10-15 18:34:24,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:24,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:24,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:24,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78078024] [2020-10-15 18:34:24,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:24,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:34:24,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076934520] [2020-10-15 18:34:24,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-15 18:34:24,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:24,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-15 18:34:24,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 18:34:24,421 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-10-15 18:34:24,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:24,470 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-10-15 18:34:24,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-15 18:34:24,471 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-15 18:34:24,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:24,499 INFO L225 Difference]: With dead ends: 850 [2020-10-15 18:34:24,501 INFO L226 Difference]: Without dead ends: 706 [2020-10-15 18:34:24,503 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 18:34:24,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-10-15 18:34:24,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-10-15 18:34:24,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-10-15 18:34:24,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-10-15 18:34:24,629 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-10-15 18:34:24,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:24,631 INFO L481 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-10-15 18:34:24,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-15 18:34:24,631 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-10-15 18:34:24,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 18:34:24,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:24,634 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:24,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 18:34:24,635 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:24,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:24,635 INFO L82 PathProgramCache]: Analyzing trace with hash -325524913, now seen corresponding path program 1 times [2020-10-15 18:34:24,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:24,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85176941] [2020-10-15 18:34:24,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:24,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:24,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85176941] [2020-10-15 18:34:24,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:24,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:34:24,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754560770] [2020-10-15 18:34:24,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:34:24,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:24,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:34:24,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:34:24,811 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-10-15 18:34:24,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:24,907 INFO L93 Difference]: Finished difference Result 802 states and 2662 transitions. [2020-10-15 18:34:24,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:34:24,908 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-15 18:34:24,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:24,916 INFO L225 Difference]: With dead ends: 802 [2020-10-15 18:34:24,917 INFO L226 Difference]: Without dead ends: 658 [2020-10-15 18:34:24,918 INFO L677 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 [2020-10-15 18:34:24,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2020-10-15 18:34:24,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2020-10-15 18:34:24,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 658 states. [2020-10-15 18:34:24,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 2230 transitions. [2020-10-15 18:34:24,960 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 2230 transitions. Word has length 11 [2020-10-15 18:34:24,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:24,960 INFO L481 AbstractCegarLoop]: Abstraction has 658 states and 2230 transitions. [2020-10-15 18:34:24,961 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:34:24,961 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 2230 transitions. [2020-10-15 18:34:24,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 18:34:24,968 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:24,969 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:24,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 18:34:24,969 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:24,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:24,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1501347001, now seen corresponding path program 1 times [2020-10-15 18:34:24,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:24,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376003924] [2020-10-15 18:34:24,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:25,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:25,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:25,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376003924] [2020-10-15 18:34:25,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:25,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:34:25,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157636535] [2020-10-15 18:34:25,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:34:25,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:25,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:34:25,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:34:25,114 INFO L87 Difference]: Start difference. First operand 658 states and 2230 transitions. Second operand 4 states. [2020-10-15 18:34:25,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:25,142 INFO L93 Difference]: Finished difference Result 718 states and 2348 transitions. [2020-10-15 18:34:25,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:34:25,143 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 18:34:25,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:25,148 INFO L225 Difference]: With dead ends: 718 [2020-10-15 18:34:25,148 INFO L226 Difference]: Without dead ends: 598 [2020-10-15 18:34:25,149 INFO L677 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 [2020-10-15 18:34:25,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2020-10-15 18:34:25,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 598. [2020-10-15 18:34:25,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 598 states. [2020-10-15 18:34:25,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 1992 transitions. [2020-10-15 18:34:25,173 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 1992 transitions. Word has length 12 [2020-10-15 18:34:25,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:25,173 INFO L481 AbstractCegarLoop]: Abstraction has 598 states and 1992 transitions. [2020-10-15 18:34:25,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:34:25,173 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 1992 transitions. [2020-10-15 18:34:25,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:34:25,175 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:25,175 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:25,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 18:34:25,175 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:25,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:25,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1422147839, now seen corresponding path program 1 times [2020-10-15 18:34:25,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:25,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228003078] [2020-10-15 18:34:25,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:25,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:25,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:25,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228003078] [2020-10-15 18:34:25,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:25,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:34:25,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57441061] [2020-10-15 18:34:25,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:34:25,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:25,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:34:25,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:34:25,231 INFO L87 Difference]: Start difference. First operand 598 states and 1992 transitions. Second operand 4 states. [2020-10-15 18:34:25,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:25,257 INFO L93 Difference]: Finished difference Result 634 states and 2058 transitions. [2020-10-15 18:34:25,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:34:25,258 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-15 18:34:25,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:25,263 INFO L225 Difference]: With dead ends: 634 [2020-10-15 18:34:25,263 INFO L226 Difference]: Without dead ends: 562 [2020-10-15 18:34:25,263 INFO L677 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 [2020-10-15 18:34:25,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2020-10-15 18:34:25,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2020-10-15 18:34:25,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2020-10-15 18:34:25,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 1854 transitions. [2020-10-15 18:34:25,286 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 1854 transitions. Word has length 13 [2020-10-15 18:34:25,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:25,287 INFO L481 AbstractCegarLoop]: Abstraction has 562 states and 1854 transitions. [2020-10-15 18:34:25,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:34:25,287 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 1854 transitions. [2020-10-15 18:34:25,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 18:34:25,288 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:25,289 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:25,289 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 18:34:25,289 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:25,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:25,289 INFO L82 PathProgramCache]: Analyzing trace with hash -464753782, now seen corresponding path program 1 times [2020-10-15 18:34:25,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:25,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685022614] [2020-10-15 18:34:25,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:25,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:25,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:25,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685022614] [2020-10-15 18:34:25,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:25,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:34:25,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687390886] [2020-10-15 18:34:25,349 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:34:25,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:25,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:34:25,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:34:25,349 INFO L87 Difference]: Start difference. First operand 562 states and 1854 transitions. Second operand 5 states. [2020-10-15 18:34:25,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:25,404 INFO L93 Difference]: Finished difference Result 834 states and 2710 transitions. [2020-10-15 18:34:25,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:34:25,404 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-15 18:34:25,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:25,408 INFO L225 Difference]: With dead ends: 834 [2020-10-15 18:34:25,408 INFO L226 Difference]: Without dead ends: 450 [2020-10-15 18:34:25,409 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 18:34:25,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2020-10-15 18:34:25,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2020-10-15 18:34:25,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2020-10-15 18:34:25,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 1444 transitions. [2020-10-15 18:34:25,425 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 1444 transitions. Word has length 14 [2020-10-15 18:34:25,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:25,425 INFO L481 AbstractCegarLoop]: Abstraction has 450 states and 1444 transitions. [2020-10-15 18:34:25,425 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:34:25,426 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 1444 transitions. [2020-10-15 18:34:25,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:34:25,427 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:25,427 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:25,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 18:34:25,427 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:25,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:25,428 INFO L82 PathProgramCache]: Analyzing trace with hash -453774883, now seen corresponding path program 1 times [2020-10-15 18:34:25,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:25,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259705941] [2020-10-15 18:34:25,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:25,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:25,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259705941] [2020-10-15 18:34:25,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:25,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:34:25,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176476821] [2020-10-15 18:34:25,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:34:25,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:25,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:34:25,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:34:25,494 INFO L87 Difference]: Start difference. First operand 450 states and 1444 transitions. Second operand 5 states. [2020-10-15 18:34:25,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:25,563 INFO L93 Difference]: Finished difference Result 834 states and 2560 transitions. [2020-10-15 18:34:25,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 18:34:25,564 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-15 18:34:25,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:25,567 INFO L225 Difference]: With dead ends: 834 [2020-10-15 18:34:25,568 INFO L226 Difference]: Without dead ends: 410 [2020-10-15 18:34:25,568 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:34:25,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2020-10-15 18:34:25,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 346. [2020-10-15 18:34:25,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-15 18:34:25,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 1030 transitions. [2020-10-15 18:34:25,582 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 1030 transitions. Word has length 15 [2020-10-15 18:34:25,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:25,583 INFO L481 AbstractCegarLoop]: Abstraction has 346 states and 1030 transitions. [2020-10-15 18:34:25,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:34:25,583 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 1030 transitions. [2020-10-15 18:34:25,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:34:25,584 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:25,584 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:25,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 18:34:25,585 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:25,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:25,585 INFO L82 PathProgramCache]: Analyzing trace with hash -99110680, now seen corresponding path program 1 times [2020-10-15 18:34:25,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:25,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808751065] [2020-10-15 18:34:25,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:25,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:25,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:25,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808751065] [2020-10-15 18:34:25,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:25,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:34:25,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489841494] [2020-10-15 18:34:25,638 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:34:25,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:25,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:34:25,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:34:25,639 INFO L87 Difference]: Start difference. First operand 346 states and 1030 transitions. Second operand 4 states. [2020-10-15 18:34:25,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:25,670 INFO L93 Difference]: Finished difference Result 494 states and 1402 transitions. [2020-10-15 18:34:25,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:34:25,670 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-15 18:34:25,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:25,673 INFO L225 Difference]: With dead ends: 494 [2020-10-15 18:34:25,674 INFO L226 Difference]: Without dead ends: 370 [2020-10-15 18:34:25,675 INFO L677 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 [2020-10-15 18:34:25,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-10-15 18:34:25,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 322. [2020-10-15 18:34:25,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2020-10-15 18:34:25,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 910 transitions. [2020-10-15 18:34:25,686 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 910 transitions. Word has length 15 [2020-10-15 18:34:25,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:25,686 INFO L481 AbstractCegarLoop]: Abstraction has 322 states and 910 transitions. [2020-10-15 18:34:25,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:34:25,687 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 910 transitions. [2020-10-15 18:34:25,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:34:25,688 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:25,688 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:25,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 18:34:25,688 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:25,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:25,689 INFO L82 PathProgramCache]: Analyzing trace with hash -96752386, now seen corresponding path program 1 times [2020-10-15 18:34:25,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:25,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808409461] [2020-10-15 18:34:25,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:25,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:25,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808409461] [2020-10-15 18:34:25,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:25,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:34:25,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138727859] [2020-10-15 18:34:25,780 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:34:25,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:25,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:34:25,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:34:25,781 INFO L87 Difference]: Start difference. First operand 322 states and 910 transitions. Second operand 5 states. [2020-10-15 18:34:25,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:25,829 INFO L93 Difference]: Finished difference Result 454 states and 1236 transitions. [2020-10-15 18:34:25,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:34:25,830 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-15 18:34:25,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:25,832 INFO L225 Difference]: With dead ends: 454 [2020-10-15 18:34:25,832 INFO L226 Difference]: Without dead ends: 238 [2020-10-15 18:34:25,833 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:34:25,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-15 18:34:25,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2020-10-15 18:34:25,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-10-15 18:34:25,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 639 transitions. [2020-10-15 18:34:25,853 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 639 transitions. Word has length 15 [2020-10-15 18:34:25,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:25,854 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 639 transitions. [2020-10-15 18:34:25,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:34:25,854 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 639 transitions. [2020-10-15 18:34:25,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:34:25,855 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:25,855 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:25,855 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 18:34:25,856 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:25,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:25,856 INFO L82 PathProgramCache]: Analyzing trace with hash 807678122, now seen corresponding path program 2 times [2020-10-15 18:34:25,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:25,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325775425] [2020-10-15 18:34:25,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:25,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:25,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325775425] [2020-10-15 18:34:25,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:25,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:34:25,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037374718] [2020-10-15 18:34:25,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:34:25,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:25,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:34:25,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:34:25,977 INFO L87 Difference]: Start difference. First operand 238 states and 639 transitions. Second operand 4 states. [2020-10-15 18:34:26,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:26,012 INFO L93 Difference]: Finished difference Result 283 states and 696 transitions. [2020-10-15 18:34:26,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:34:26,013 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-15 18:34:26,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:26,014 INFO L225 Difference]: With dead ends: 283 [2020-10-15 18:34:26,015 INFO L226 Difference]: Without dead ends: 214 [2020-10-15 18:34:26,015 INFO L677 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 [2020-10-15 18:34:26,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-10-15 18:34:26,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2020-10-15 18:34:26,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-10-15 18:34:26,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 534 transitions. [2020-10-15 18:34:26,022 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 534 transitions. Word has length 15 [2020-10-15 18:34:26,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:26,022 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 534 transitions. [2020-10-15 18:34:26,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:34:26,022 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 534 transitions. [2020-10-15 18:34:26,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-15 18:34:26,023 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:26,023 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:26,023 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 18:34:26,023 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:26,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:26,024 INFO L82 PathProgramCache]: Analyzing trace with hash -1481069530, now seen corresponding path program 1 times [2020-10-15 18:34:26,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:26,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757992550] [2020-10-15 18:34:26,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:26,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:26,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757992550] [2020-10-15 18:34:26,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:26,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:34:26,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587576517] [2020-10-15 18:34:26,080 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:34:26,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:26,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:34:26,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:34:26,081 INFO L87 Difference]: Start difference. First operand 214 states and 534 transitions. Second operand 5 states. [2020-10-15 18:34:26,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:26,128 INFO L93 Difference]: Finished difference Result 211 states and 465 transitions. [2020-10-15 18:34:26,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:34:26,128 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-15 18:34:26,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:26,130 INFO L225 Difference]: With dead ends: 211 [2020-10-15 18:34:26,130 INFO L226 Difference]: Without dead ends: 158 [2020-10-15 18:34:26,130 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:34:26,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-15 18:34:26,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2020-10-15 18:34:26,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-10-15 18:34:26,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 339 transitions. [2020-10-15 18:34:26,136 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 339 transitions. Word has length 16 [2020-10-15 18:34:26,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:26,136 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 339 transitions. [2020-10-15 18:34:26,136 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:34:26,136 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 339 transitions. [2020-10-15 18:34:26,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 18:34:26,137 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:26,137 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:26,137 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 18:34:26,137 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:26,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:26,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1331262194, now seen corresponding path program 1 times [2020-10-15 18:34:26,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:26,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180456641] [2020-10-15 18:34:26,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:26,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:26,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180456641] [2020-10-15 18:34:26,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:26,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:34:26,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072592796] [2020-10-15 18:34:26,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 18:34:26,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:26,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 18:34:26,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:34:26,198 INFO L87 Difference]: Start difference. First operand 158 states and 339 transitions. Second operand 6 states. [2020-10-15 18:34:26,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:26,253 INFO L93 Difference]: Finished difference Result 134 states and 268 transitions. [2020-10-15 18:34:26,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 18:34:26,254 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-15 18:34:26,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:26,255 INFO L225 Difference]: With dead ends: 134 [2020-10-15 18:34:26,255 INFO L226 Difference]: Without dead ends: 95 [2020-10-15 18:34:26,256 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:34:26,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-10-15 18:34:26,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2020-10-15 18:34:26,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-10-15 18:34:26,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 181 transitions. [2020-10-15 18:34:26,259 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 181 transitions. Word has length 17 [2020-10-15 18:34:26,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:26,259 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 181 transitions. [2020-10-15 18:34:26,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 18:34:26,259 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 181 transitions. [2020-10-15 18:34:26,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 18:34:26,260 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:26,260 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:26,260 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 18:34:26,261 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:26,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:26,261 INFO L82 PathProgramCache]: Analyzing trace with hash 461519417, now seen corresponding path program 1 times [2020-10-15 18:34:26,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:26,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378969934] [2020-10-15 18:34:26,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:26,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:26,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:26,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378969934] [2020-10-15 18:34:26,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:26,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:34:26,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783622843] [2020-10-15 18:34:26,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:34:26,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:26,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:34:26,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:34:26,304 INFO L87 Difference]: Start difference. First operand 95 states and 181 transitions. Second operand 5 states. [2020-10-15 18:34:26,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:26,336 INFO L93 Difference]: Finished difference Result 109 states and 198 transitions. [2020-10-15 18:34:26,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:34:26,336 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-10-15 18:34:26,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:26,337 INFO L225 Difference]: With dead ends: 109 [2020-10-15 18:34:26,337 INFO L226 Difference]: Without dead ends: 93 [2020-10-15 18:34:26,338 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:34:26,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-15 18:34:26,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2020-10-15 18:34:26,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-15 18:34:26,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 169 transitions. [2020-10-15 18:34:26,341 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 169 transitions. Word has length 19 [2020-10-15 18:34:26,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:26,341 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 169 transitions. [2020-10-15 18:34:26,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:34:26,342 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 169 transitions. [2020-10-15 18:34:26,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 18:34:26,342 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:26,342 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:26,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 18:34:26,343 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:26,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:26,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1319799301, now seen corresponding path program 2 times [2020-10-15 18:34:26,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:26,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978100166] [2020-10-15 18:34:26,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:26,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:26,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978100166] [2020-10-15 18:34:26,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:26,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 18:34:26,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495244546] [2020-10-15 18:34:26,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:34:26,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:26,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:34:26,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:34:26,406 INFO L87 Difference]: Start difference. First operand 91 states and 169 transitions. Second operand 7 states. [2020-10-15 18:34:26,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:26,446 INFO L93 Difference]: Finished difference Result 81 states and 154 transitions. [2020-10-15 18:34:26,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 18:34:26,446 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 18:34:26,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:26,447 INFO L225 Difference]: With dead ends: 81 [2020-10-15 18:34:26,447 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 18:34:26,447 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-15 18:34:26,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 18:34:26,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 18:34:26,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 18:34:26,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 18:34:26,448 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-15 18:34:26,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:26,448 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 18:34:26,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:34:26,448 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 18:34:26,449 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 18:34:26,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 18:34:26,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 06:34:26 BasicIcfg [2020-10-15 18:34:26,452 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 18:34:26,455 INFO L168 Benchmark]: Toolchain (without parser) took 5380.55 ms. Allocated memory was 252.7 MB in the beginning and 427.8 MB in the end (delta: 175.1 MB). Free memory was 208.6 MB in the beginning and 307.9 MB in the end (delta: -99.3 MB). Peak memory consumption was 75.8 MB. Max. memory is 14.2 GB. [2020-10-15 18:34:26,456 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 252.7 MB. Free memory is still 229.1 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 18:34:26,457 INFO L168 Benchmark]: CACSL2BoogieTranslator took 679.70 ms. Allocated memory was 252.7 MB in the beginning and 319.8 MB in the end (delta: 67.1 MB). Free memory was 208.6 MB in the beginning and 273.2 MB in the end (delta: -64.6 MB). Peak memory consumption was 29.3 MB. Max. memory is 14.2 GB. [2020-10-15 18:34:26,457 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.47 ms. Allocated memory is still 319.8 MB. Free memory was 273.2 MB in the beginning and 270.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:34:26,458 INFO L168 Benchmark]: Boogie Preprocessor took 27.06 ms. Allocated memory is still 319.8 MB. Free memory was 270.7 MB in the beginning and 268.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:34:26,459 INFO L168 Benchmark]: RCFGBuilder took 455.63 ms. Allocated memory is still 319.8 MB. Free memory was 268.2 MB in the beginning and 243.8 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. [2020-10-15 18:34:26,459 INFO L168 Benchmark]: TraceAbstraction took 4163.74 ms. Allocated memory was 319.8 MB in the beginning and 427.8 MB in the end (delta: 108.0 MB). Free memory was 243.8 MB in the beginning and 307.9 MB in the end (delta: -64.1 MB). Peak memory consumption was 43.9 MB. Max. memory is 14.2 GB. [2020-10-15 18:34:26,463 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 252.7 MB. Free memory is still 229.1 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 679.70 ms. Allocated memory was 252.7 MB in the beginning and 319.8 MB in the end (delta: 67.1 MB). Free memory was 208.6 MB in the beginning and 273.2 MB in the end (delta: -64.6 MB). Peak memory consumption was 29.3 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 49.47 ms. Allocated memory is still 319.8 MB. Free memory was 273.2 MB in the beginning and 270.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 27.06 ms. Allocated memory is still 319.8 MB. Free memory was 270.7 MB in the beginning and 268.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 455.63 ms. Allocated memory is still 319.8 MB. Free memory was 268.2 MB in the beginning and 243.8 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 4163.74 ms. Allocated memory was 319.8 MB in the beginning and 427.8 MB in the end (delta: 108.0 MB). Free memory was 243.8 MB in the beginning and 307.9 MB in the end (delta: -64.1 MB). Peak memory consumption was 43.9 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1223 VarBasedMoverChecksPositive, 53 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 103 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 91 PlacesBefore, 39 PlacesAfterwards, 80 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 63 TotalNumberOfCompositions, 3057 MoverChecksTotal - 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, 79 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.0s, OverallIterations: 13, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 347 SDtfs, 346 SDslu, 602 SDs, 0 SdLazy, 217 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred 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: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 114 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 191 NumberOfCodeBlocks, 191 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 178 ConstructedInterpolants, 0 QuantifiedInterpolants, 7404 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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...