/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 01:04:04,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 01:04:04,453 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 01:04:04,476 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 01:04:04,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 01:04:04,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 01:04:04,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 01:04:04,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 01:04:04,482 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 01:04:04,482 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 01:04:04,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 01:04:04,484 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 01:04:04,485 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 01:04:04,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 01:04:04,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 01:04:04,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 01:04:04,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 01:04:04,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 01:04:04,490 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 01:04:04,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 01:04:04,494 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 01:04:04,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 01:04:04,496 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 01:04:04,498 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 01:04:04,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-06 01:04:04,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-06 01:04:04,503 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-06 01:04:04,505 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-06 01:04:04,505 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-06 01:04:04,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-06 01:04:04,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 01:04:04,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 01:04:04,508 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 01:04:04,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 01:04:04,510 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 01:04:04,510 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 01:04:04,511 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 01:04:04,511 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 01:04:04,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 01:04:04,513 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 01:04:04,514 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 01:04:04,515 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-06 01:04:04,566 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 01:04:04,567 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 01:04:04,568 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 01:04:04,570 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 01:04:04,570 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 01:04:04,570 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 01:04:04,571 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 01:04:04,571 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 01:04:04,571 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 01:04:04,571 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 01:04:04,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 01:04:04,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 01:04:04,572 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 01:04:04,572 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 01:04:04,572 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 01:04:04,572 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 01:04:04,572 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 01:04:04,573 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 01:04:04,573 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 01:04:04,573 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 01:04:04,573 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 01:04:04,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:04:04,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 01:04:04,574 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 01:04:04,575 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 01:04:04,575 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 01:04:04,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 01:04:04,576 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 01:04:04,576 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 01:04:04,576 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 01:04:04,576 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 01:04:04,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 01:04:04,884 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 01:04:04,888 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 01:04:04,889 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 01:04:04,889 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 01:04:04,890 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i [2020-10-06 01:04:04,950 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3fe4b2ec/d9764896ec19450eb8d4b74573a94679/FLAGa94c28dd1 [2020-10-06 01:04:05,411 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 01:04:05,414 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i [2020-10-06 01:04:05,443 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3fe4b2ec/d9764896ec19450eb8d4b74573a94679/FLAGa94c28dd1 [2020-10-06 01:04:05,724 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3fe4b2ec/d9764896ec19450eb8d4b74573a94679 [2020-10-06 01:04:05,734 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 01:04:05,735 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 01:04:05,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 01:04:05,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 01:04:05,740 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 01:04:05,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:04:05" (1/1) ... [2020-10-06 01:04:05,744 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c056663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:04:05, skipping insertion in model container [2020-10-06 01:04:05,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:04:05" (1/1) ... [2020-10-06 01:04:05,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 01:04:05,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 01:04:06,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:04:06,295 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 01:04:06,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:04:06,429 INFO L208 MainTranslator]: Completed translation [2020-10-06 01:04:06,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:04:06 WrapperNode [2020-10-06 01:04:06,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 01:04:06,430 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 01:04:06,430 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 01:04:06,431 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 01:04:06,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:04:06" (1/1) ... [2020-10-06 01:04:06,455 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:04:06" (1/1) ... [2020-10-06 01:04:06,477 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 01:04:06,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 01:04:06,478 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 01:04:06,478 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 01:04:06,487 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:04:06" (1/1) ... [2020-10-06 01:04:06,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:04:06" (1/1) ... [2020-10-06 01:04:06,490 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:04:06" (1/1) ... [2020-10-06 01:04:06,491 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:04:06" (1/1) ... [2020-10-06 01:04:06,497 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:04:06" (1/1) ... [2020-10-06 01:04:06,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:04:06" (1/1) ... [2020-10-06 01:04:06,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:04:06" (1/1) ... [2020-10-06 01:04:06,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 01:04:06,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 01:04:06,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 01:04:06,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 01:04:06,506 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:04:06" (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 [2020-10-06 01:04:06,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 01:04:06,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-06 01:04:06,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 01:04:06,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 01:04:06,570 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-06 01:04:06,570 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-06 01:04:06,570 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-06 01:04:06,570 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-06 01:04:06,570 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-06 01:04:06,570 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-06 01:04:06,571 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-06 01:04:06,571 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-06 01:04:06,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-06 01:04:06,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 01:04:06,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 01:04:06,574 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-06 01:04:06,944 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 01:04:06,944 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-06 01:04:06,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:04:06 BoogieIcfgContainer [2020-10-06 01:04:06,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 01:04:06,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 01:04:06,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 01:04:06,954 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 01:04:06,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 01:04:05" (1/3) ... [2020-10-06 01:04:06,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c34944f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:04:06, skipping insertion in model container [2020-10-06 01:04:06,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:04:06" (2/3) ... [2020-10-06 01:04:06,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c34944f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:04:06, skipping insertion in model container [2020-10-06 01:04:06,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:04:06" (3/3) ... [2020-10-06 01:04:06,959 INFO L109 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc.i [2020-10-06 01:04:06,969 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 01:04:06,970 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 01:04:06,978 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-06 01:04:06,979 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 01:04:07,009 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,010 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,010 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,010 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,011 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,011 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,012 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,012 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,012 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,012 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,013 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,013 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,014 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,014 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,014 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,014 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,015 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,015 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,015 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,016 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,016 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,016 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,017 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,017 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,021 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,021 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,021 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,022 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,028 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,028 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,028 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,029 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,034 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,034 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,035 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,035 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,038 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,038 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,038 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,038 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:07,056 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-06 01:04:07,077 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 01:04:07,078 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 01:04:07,078 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 01:04:07,078 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 01:04:07,078 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 01:04:07,078 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 01:04:07,079 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 01:04:07,079 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 01:04:07,095 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 80 transitions, 180 flow [2020-10-06 01:04:07,097 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 80 transitions, 180 flow [2020-10-06 01:04:07,147 INFO L129 PetriNetUnfolder]: 2/76 cut-off events. [2020-10-06 01:04:07,147 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:04:07,153 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. [2020-10-06 01:04:07,157 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 80 transitions, 180 flow [2020-10-06 01:04:07,182 INFO L129 PetriNetUnfolder]: 2/76 cut-off events. [2020-10-06 01:04:07,183 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:04:07,184 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. [2020-10-06 01:04:07,187 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-10-06 01:04:07,188 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 01:04:08,430 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2895 [2020-10-06 01:04:08,430 INFO L214 etLargeBlockEncoding]: Total number of compositions: 62 [2020-10-06 01:04:08,433 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-10-06 01:04:08,491 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-10-06 01:04:08,493 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-10-06 01:04:08,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 01:04:08,503 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:04:08,504 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:04:08,504 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:04:08,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:04:08,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1118879254, now seen corresponding path program 1 times [2020-10-06 01:04:08,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:04:08,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958914565] [2020-10-06 01:04:08,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:04:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:04:08,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:04:08,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958914565] [2020-10-06 01:04:08,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:04:08,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:04:08,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1288576041] [2020-10-06 01:04:08,716 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:04:08,719 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:04:08,734 INFO L258 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-06 01:04:08,734 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:04:08,738 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:04:08,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-06 01:04:08,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:04:08,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-06 01:04:08,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-06 01:04:08,756 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-10-06 01:04:08,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:04:08,808 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-10-06 01:04:08,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-06 01:04:08,810 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-06 01:04:08,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:04:08,838 INFO L225 Difference]: With dead ends: 850 [2020-10-06 01:04:08,839 INFO L226 Difference]: Without dead ends: 706 [2020-10-06 01:04:08,840 INFO L675 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 [2020-10-06 01:04:08,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-10-06 01:04:08,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-10-06 01:04:08,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-10-06 01:04:08,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-10-06 01:04:08,969 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-10-06 01:04:08,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:04:08,973 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-10-06 01:04:08,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-06 01:04:08,973 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-10-06 01:04:08,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 01:04:08,979 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:04:08,979 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:04:08,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 01:04:08,980 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:04:08,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:04:08,981 INFO L82 PathProgramCache]: Analyzing trace with hash -325524913, now seen corresponding path program 1 times [2020-10-06 01:04:08,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:04:08,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133989125] [2020-10-06 01:04:08,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:04:09,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:04:09,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:04:09,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133989125] [2020-10-06 01:04:09,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:04:09,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:04:09,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1217097735] [2020-10-06 01:04:09,122 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:04:09,123 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:04:09,125 INFO L258 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-10-06 01:04:09,125 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:04:09,125 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:04:09,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:04:09,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:04:09,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:04:09,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:04:09,128 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-10-06 01:04:09,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:04:09,175 INFO L93 Difference]: Finished difference Result 802 states and 2662 transitions. [2020-10-06 01:04:09,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:04:09,176 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-06 01:04:09,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:04:09,181 INFO L225 Difference]: With dead ends: 802 [2020-10-06 01:04:09,181 INFO L226 Difference]: Without dead ends: 658 [2020-10-06 01:04:09,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:04:09,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2020-10-06 01:04:09,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2020-10-06 01:04:09,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 658 states. [2020-10-06 01:04:09,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 2230 transitions. [2020-10-06 01:04:09,213 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 2230 transitions. Word has length 11 [2020-10-06 01:04:09,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:04:09,213 INFO L479 AbstractCegarLoop]: Abstraction has 658 states and 2230 transitions. [2020-10-06 01:04:09,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:04:09,214 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 2230 transitions. [2020-10-06 01:04:09,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-06 01:04:09,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:04:09,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:04:09,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 01:04:09,216 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:04:09,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:04:09,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1502334909, now seen corresponding path program 1 times [2020-10-06 01:04:09,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:04:09,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359586145] [2020-10-06 01:04:09,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:04:09,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:04:09,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:04:09,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359586145] [2020-10-06 01:04:09,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:04:09,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:04:09,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2147115044] [2020-10-06 01:04:09,301 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:04:09,303 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:04:09,305 INFO L258 McrAutomatonBuilder]: Finished intersection with 14 states and 14 transitions. [2020-10-06 01:04:09,305 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:04:09,311 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:04:09,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:04:09,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:04:09,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:04:09,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:04:09,313 INFO L87 Difference]: Start difference. First operand 658 states and 2230 transitions. Second operand 4 states. [2020-10-06 01:04:09,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:04:09,356 INFO L93 Difference]: Finished difference Result 738 states and 2404 transitions. [2020-10-06 01:04:09,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:04:09,357 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-06 01:04:09,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:04:09,362 INFO L225 Difference]: With dead ends: 738 [2020-10-06 01:04:09,362 INFO L226 Difference]: Without dead ends: 618 [2020-10-06 01:04:09,363 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:04:09,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2020-10-06 01:04:09,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 618. [2020-10-06 01:04:09,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 618 states. [2020-10-06 01:04:09,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 2058 transitions. [2020-10-06 01:04:09,386 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 2058 transitions. Word has length 12 [2020-10-06 01:04:09,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:04:09,387 INFO L479 AbstractCegarLoop]: Abstraction has 618 states and 2058 transitions. [2020-10-06 01:04:09,387 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:04:09,387 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 2058 transitions. [2020-10-06 01:04:09,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 01:04:09,389 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:04:09,389 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:04:09,389 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 01:04:09,389 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:04:09,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:04:09,390 INFO L82 PathProgramCache]: Analyzing trace with hash 672248787, now seen corresponding path program 1 times [2020-10-06 01:04:09,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:04:09,391 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678920905] [2020-10-06 01:04:09,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:04:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:04:09,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:04:09,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678920905] [2020-10-06 01:04:09,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:04:09,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:04:09,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [82105098] [2020-10-06 01:04:09,479 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:04:09,480 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:04:09,483 INFO L258 McrAutomatonBuilder]: Finished intersection with 22 states and 30 transitions. [2020-10-06 01:04:09,483 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:04:09,530 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:04:09,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:04:09,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:04:09,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:04:09,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:04:09,531 INFO L87 Difference]: Start difference. First operand 618 states and 2058 transitions. Second operand 4 states. [2020-10-06 01:04:09,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:04:09,557 INFO L93 Difference]: Finished difference Result 658 states and 2130 transitions. [2020-10-06 01:04:09,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:04:09,558 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-06 01:04:09,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:04:09,563 INFO L225 Difference]: With dead ends: 658 [2020-10-06 01:04:09,563 INFO L226 Difference]: Without dead ends: 578 [2020-10-06 01:04:09,564 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:04:09,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2020-10-06 01:04:09,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 578. [2020-10-06 01:04:09,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 578 states. [2020-10-06 01:04:09,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 1906 transitions. [2020-10-06 01:04:09,607 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 1906 transitions. Word has length 13 [2020-10-06 01:04:09,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:04:09,608 INFO L479 AbstractCegarLoop]: Abstraction has 578 states and 1906 transitions. [2020-10-06 01:04:09,608 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:04:09,608 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 1906 transitions. [2020-10-06 01:04:09,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-06 01:04:09,610 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:04:09,610 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:04:09,610 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 01:04:09,610 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:04:09,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:04:09,611 INFO L82 PathProgramCache]: Analyzing trace with hash -488944074, now seen corresponding path program 1 times [2020-10-06 01:04:09,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:04:09,612 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893798711] [2020-10-06 01:04:09,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:04:09,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:04:09,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:04:09,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893798711] [2020-10-06 01:04:09,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:04:09,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:04:09,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1399463662] [2020-10-06 01:04:09,664 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:04:09,666 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:04:09,669 INFO L258 McrAutomatonBuilder]: Finished intersection with 32 states and 49 transitions. [2020-10-06 01:04:09,670 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:04:09,750 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:04:09,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:04:09,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:04:09,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:04:09,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:04:09,752 INFO L87 Difference]: Start difference. First operand 578 states and 1906 transitions. Second operand 5 states. [2020-10-06 01:04:09,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:04:09,799 INFO L93 Difference]: Finished difference Result 874 states and 2856 transitions. [2020-10-06 01:04:09,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:04:09,800 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-06 01:04:09,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:04:09,804 INFO L225 Difference]: With dead ends: 874 [2020-10-06 01:04:09,804 INFO L226 Difference]: Without dead ends: 482 [2020-10-06 01:04:09,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-06 01:04:09,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2020-10-06 01:04:09,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2020-10-06 01:04:09,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-10-06 01:04:09,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 1564 transitions. [2020-10-06 01:04:09,821 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 1564 transitions. Word has length 14 [2020-10-06 01:04:09,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:04:09,821 INFO L479 AbstractCegarLoop]: Abstraction has 482 states and 1564 transitions. [2020-10-06 01:04:09,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:04:09,822 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 1564 transitions. [2020-10-06 01:04:09,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-06 01:04:09,823 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:04:09,823 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:04:09,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 01:04:09,824 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:04:09,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:04:09,824 INFO L82 PathProgramCache]: Analyzing trace with hash -669040336, now seen corresponding path program 2 times [2020-10-06 01:04:09,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:04:09,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182310306] [2020-10-06 01:04:09,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:04:09,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:04:09,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:04:09,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182310306] [2020-10-06 01:04:09,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:04:09,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:04:09,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1213667525] [2020-10-06 01:04:09,906 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:04:09,908 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:04:09,911 INFO L258 McrAutomatonBuilder]: Finished intersection with 18 states and 20 transitions. [2020-10-06 01:04:09,912 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:04:09,921 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:04:09,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:04:09,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:04:09,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:04:09,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:04:09,923 INFO L87 Difference]: Start difference. First operand 482 states and 1564 transitions. Second operand 4 states. [2020-10-06 01:04:09,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:04:09,955 INFO L93 Difference]: Finished difference Result 514 states and 1620 transitions. [2020-10-06 01:04:09,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:04:09,956 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-06 01:04:09,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:04:09,960 INFO L225 Difference]: With dead ends: 514 [2020-10-06 01:04:09,960 INFO L226 Difference]: Without dead ends: 450 [2020-10-06 01:04:09,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:04:09,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2020-10-06 01:04:09,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2020-10-06 01:04:09,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2020-10-06 01:04:09,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 1444 transitions. [2020-10-06 01:04:09,979 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 1444 transitions. Word has length 14 [2020-10-06 01:04:09,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:04:09,979 INFO L479 AbstractCegarLoop]: Abstraction has 450 states and 1444 transitions. [2020-10-06 01:04:09,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:04:09,979 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 1444 transitions. [2020-10-06 01:04:09,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-06 01:04:09,981 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:04:09,981 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:04:09,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-06 01:04:09,982 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:04:09,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:04:09,982 INFO L82 PathProgramCache]: Analyzing trace with hash -453774883, now seen corresponding path program 1 times [2020-10-06 01:04:09,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:04:09,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965625812] [2020-10-06 01:04:09,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:04:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:04:10,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:04:10,057 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965625812] [2020-10-06 01:04:10,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:04:10,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:04:10,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [797898021] [2020-10-06 01:04:10,058 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:04:10,059 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:04:10,063 INFO L258 McrAutomatonBuilder]: Finished intersection with 28 states and 39 transitions. [2020-10-06 01:04:10,064 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:04:10,105 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:04:10,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:04:10,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:04:10,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:04:10,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:04:10,106 INFO L87 Difference]: Start difference. First operand 450 states and 1444 transitions. Second operand 4 states. [2020-10-06 01:04:10,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:04:10,135 INFO L93 Difference]: Finished difference Result 658 states and 2016 transitions. [2020-10-06 01:04:10,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:04:10,136 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-06 01:04:10,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:04:10,139 INFO L225 Difference]: With dead ends: 658 [2020-10-06 01:04:10,140 INFO L226 Difference]: Without dead ends: 482 [2020-10-06 01:04:10,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:04:10,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2020-10-06 01:04:10,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 418. [2020-10-06 01:04:10,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-06 01:04:10,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 1276 transitions. [2020-10-06 01:04:10,159 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 1276 transitions. Word has length 15 [2020-10-06 01:04:10,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:04:10,159 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 1276 transitions. [2020-10-06 01:04:10,159 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:04:10,159 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 1276 transitions. [2020-10-06 01:04:10,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-06 01:04:10,161 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:04:10,161 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:04:10,161 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-06 01:04:10,161 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:04:10,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:04:10,161 INFO L82 PathProgramCache]: Analyzing trace with hash -99110680, now seen corresponding path program 1 times [2020-10-06 01:04:10,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:04:10,163 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541403051] [2020-10-06 01:04:10,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:04:10,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:04:10,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:04:10,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541403051] [2020-10-06 01:04:10,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:04:10,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:04:10,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1613467857] [2020-10-06 01:04:10,204 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:04:10,206 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:04:10,209 INFO L258 McrAutomatonBuilder]: Finished intersection with 26 states and 37 transitions. [2020-10-06 01:04:10,210 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:04:10,211 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:04:10,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:04:10,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:04:10,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:04:10,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:04:10,212 INFO L87 Difference]: Start difference. First operand 418 states and 1276 transitions. Second operand 4 states. [2020-10-06 01:04:10,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:04:10,239 INFO L93 Difference]: Finished difference Result 598 states and 1736 transitions. [2020-10-06 01:04:10,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:04:10,239 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-06 01:04:10,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:04:10,243 INFO L225 Difference]: With dead ends: 598 [2020-10-06 01:04:10,243 INFO L226 Difference]: Without dead ends: 442 [2020-10-06 01:04:10,243 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:04:10,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-10-06 01:04:10,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 394. [2020-10-06 01:04:10,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-06 01:04:10,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1140 transitions. [2020-10-06 01:04:10,257 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1140 transitions. Word has length 15 [2020-10-06 01:04:10,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:04:10,257 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 1140 transitions. [2020-10-06 01:04:10,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:04:10,258 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1140 transitions. [2020-10-06 01:04:10,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-06 01:04:10,259 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:04:10,259 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:04:10,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-06 01:04:10,259 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:04:10,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:04:10,260 INFO L82 PathProgramCache]: Analyzing trace with hash -96752386, now seen corresponding path program 1 times [2020-10-06 01:04:10,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:04:10,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510653916] [2020-10-06 01:04:10,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:04:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:04:10,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:04:10,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510653916] [2020-10-06 01:04:10,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:04:10,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:04:10,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [999358433] [2020-10-06 01:04:10,305 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:04:10,307 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:04:10,311 INFO L258 McrAutomatonBuilder]: Finished intersection with 32 states and 51 transitions. [2020-10-06 01:04:10,311 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:04:10,392 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:04:10,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:04:10,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:04:10,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:04:10,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:04:10,394 INFO L87 Difference]: Start difference. First operand 394 states and 1140 transitions. Second operand 5 states. [2020-10-06 01:04:10,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:04:10,429 INFO L93 Difference]: Finished difference Result 542 states and 1518 transitions. [2020-10-06 01:04:10,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:04:10,430 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-06 01:04:10,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:04:10,432 INFO L225 Difference]: With dead ends: 542 [2020-10-06 01:04:10,432 INFO L226 Difference]: Without dead ends: 254 [2020-10-06 01:04:10,432 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-06 01:04:10,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-10-06 01:04:10,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2020-10-06 01:04:10,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-10-06 01:04:10,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 691 transitions. [2020-10-06 01:04:10,441 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 691 transitions. Word has length 15 [2020-10-06 01:04:10,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:04:10,441 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 691 transitions. [2020-10-06 01:04:10,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:04:10,441 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 691 transitions. [2020-10-06 01:04:10,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-06 01:04:10,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:04:10,442 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:04:10,442 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-06 01:04:10,443 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:04:10,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:04:10,443 INFO L82 PathProgramCache]: Analyzing trace with hash 807678122, now seen corresponding path program 2 times [2020-10-06 01:04:10,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:04:10,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676747642] [2020-10-06 01:04:10,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:04:10,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:04:10,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:04:10,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676747642] [2020-10-06 01:04:10,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:04:10,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:04:10,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [793822176] [2020-10-06 01:04:10,481 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:04:10,482 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:04:10,486 INFO L258 McrAutomatonBuilder]: Finished intersection with 34 states and 55 transitions. [2020-10-06 01:04:10,487 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:04:10,505 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:04:10,517 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:04:10,531 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:04:10,539 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:04:10,550 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:04:10,561 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:04:10,570 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:04:10,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:04:10,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:04:10,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:04:10,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:04:10,571 INFO L87 Difference]: Start difference. First operand 254 states and 691 transitions. Second operand 4 states. [2020-10-06 01:04:10,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:04:10,598 INFO L93 Difference]: Finished difference Result 182 states and 467 transitions. [2020-10-06 01:04:10,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:04:10,599 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-06 01:04:10,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:04:10,599 INFO L225 Difference]: With dead ends: 182 [2020-10-06 01:04:10,600 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 01:04:10,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:04:10,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 01:04:10,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 01:04:10,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 01:04:10,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 01:04:10,601 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-06 01:04:10,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:04:10,601 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 01:04:10,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:04:10,602 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 01:04:10,602 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 01:04:10,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-06 01:04:10,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 01:04:10 BasicIcfg [2020-10-06 01:04:10,606 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 01:04:10,609 INFO L168 Benchmark]: Toolchain (without parser) took 4872.49 ms. Allocated memory was 138.4 MB in the beginning and 299.4 MB in the end (delta: 161.0 MB). Free memory was 99.8 MB in the beginning and 223.4 MB in the end (delta: -123.6 MB). Peak memory consumption was 37.4 MB. Max. memory is 7.1 GB. [2020-10-06 01:04:10,609 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.5 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. [2020-10-06 01:04:10,610 INFO L168 Benchmark]: CACSL2BoogieTranslator took 693.43 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 99.4 MB in the beginning and 158.7 MB in the end (delta: -59.3 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2020-10-06 01:04:10,611 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.35 ms. Allocated memory is still 201.3 MB. Free memory was 158.7 MB in the beginning and 156.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-06 01:04:10,612 INFO L168 Benchmark]: Boogie Preprocessor took 26.60 ms. Allocated memory is still 201.3 MB. Free memory was 156.6 MB in the beginning and 154.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-06 01:04:10,613 INFO L168 Benchmark]: RCFGBuilder took 442.30 ms. Allocated memory is still 201.3 MB. Free memory was 154.6 MB in the beginning and 131.1 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-10-06 01:04:10,613 INFO L168 Benchmark]: TraceAbstraction took 3657.57 ms. Allocated memory was 201.3 MB in the beginning and 299.4 MB in the end (delta: 98.0 MB). Free memory was 130.1 MB in the beginning and 223.4 MB in the end (delta: -93.3 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-10-06 01:04:10,618 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.5 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 693.43 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 99.4 MB in the beginning and 158.7 MB in the end (delta: -59.3 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.35 ms. Allocated memory is still 201.3 MB. Free memory was 158.7 MB in the beginning and 156.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.60 ms. Allocated memory is still 201.3 MB. Free memory was 156.6 MB in the beginning and 154.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 442.30 ms. Allocated memory is still 201.3 MB. Free memory was 154.6 MB in the beginning and 131.1 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3657.57 ms. Allocated memory was 201.3 MB in the beginning and 299.4 MB in the end (delta: 98.0 MB). Free memory was 130.1 MB in the beginning and 223.4 MB in the end (delta: -93.3 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 91 ProgramPointsBefore, 39 ProgramPointsAfterwards, 80 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 927 VarBasedMoverChecksPositive, 22 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2895 CheckedPairsTotal, 62 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.5s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 282 SDtfs, 197 SDslu, 386 SDs, 0 SdLazy, 109 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 122 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s 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, 10 MinimizatonAttempts, 112 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 4588 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...