/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 22:11:40,366 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 22:11:40,369 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 22:11:40,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 22:11:40,401 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 22:11:40,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 22:11:40,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 22:11:40,415 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 22:11:40,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 22:11:40,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 22:11:40,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 22:11:40,423 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 22:11:40,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 22:11:40,426 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 22:11:40,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 22:11:40,430 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 22:11:40,432 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 22:11:40,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 22:11:40,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 22:11:40,445 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 22:11:40,447 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 22:11:40,448 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 22:11:40,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 22:11:40,450 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 22:11:40,462 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 22:11:40,462 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 22:11:40,463 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 22:11:40,463 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 22:11:40,464 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 22:11:40,464 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 22:11:40,465 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 22:11:40,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 22:11:40,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 22:11:40,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 22:11:40,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 22:11:40,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 22:11:40,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 22:11:40,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 22:11:40,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 22:11:40,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 22:11:40,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 22:11:40,482 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2020-10-15 22:11:40,523 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 22:11:40,524 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 22:11:40,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 22:11:40,526 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 22:11:40,526 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 22:11:40,526 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 22:11:40,527 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 22:11:40,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 22:11:40,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 22:11:40,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 22:11:40,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 22:11:40,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 22:11:40,529 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 22:11:40,529 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 22:11:40,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 22:11:40,530 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 22:11:40,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 22:11:40,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 22:11:40,530 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 22:11:40,531 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 22:11:40,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 22:11:40,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:11:40,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 22:11:40,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 22:11:40,532 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 22:11:40,532 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 22:11:40,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 22:11:40,532 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 22:11:40,532 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 22:11:40,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 22:11:40,864 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 22:11:40,867 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 22:11:40,869 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 22:11:40,869 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 22:11:40,870 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.oepc.i [2020-10-15 22:11:40,945 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/707dd2c98/5fee93272e4d468096da8027e82185e6/FLAGdc3e8a116 [2020-10-15 22:11:41,455 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 22:11:41,456 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_tso.oepc.i [2020-10-15 22:11:41,471 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/707dd2c98/5fee93272e4d468096da8027e82185e6/FLAGdc3e8a116 [2020-10-15 22:11:41,743 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/707dd2c98/5fee93272e4d468096da8027e82185e6 [2020-10-15 22:11:41,750 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 22:11:41,752 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 22:11:41,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 22:11:41,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 22:11:41,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 22:11:41,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:11:41" (1/1) ... [2020-10-15 22:11:41,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@533a647f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:11:41, skipping insertion in model container [2020-10-15 22:11:41,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:11:41" (1/1) ... [2020-10-15 22:11:41,768 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 22:11:41,806 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 22:11:42,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:11:42,232 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 22:11:42,385 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:11:42,458 INFO L208 MainTranslator]: Completed translation [2020-10-15 22:11:42,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:11:42 WrapperNode [2020-10-15 22:11:42,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 22:11:42,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 22:11:42,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 22:11:42,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 22:11:42,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:11:42" (1/1) ... [2020-10-15 22:11:42,488 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:11:42" (1/1) ... [2020-10-15 22:11:42,508 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 22:11:42,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 22:11:42,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 22:11:42,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 22:11:42,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:11:42" (1/1) ... [2020-10-15 22:11:42,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:11:42" (1/1) ... [2020-10-15 22:11:42,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:11:42" (1/1) ... [2020-10-15 22:11:42,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:11:42" (1/1) ... [2020-10-15 22:11:42,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:11:42" (1/1) ... [2020-10-15 22:11:42,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:11:42" (1/1) ... [2020-10-15 22:11:42,532 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:11:42" (1/1) ... [2020-10-15 22:11:42,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 22:11:42,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 22:11:42,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 22:11:42,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 22:11:42,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:11:42" (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 22:11:42,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 22:11:42,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 22:11:42,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 22:11:42,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 22:11:42,598 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 22:11:42,599 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 22:11:42,599 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 22:11:42,599 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 22:11:42,599 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 22:11:42,599 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 22:11:42,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 22:11:42,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 22:11:42,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 22:11:42,608 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 22:11:42,956 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 22:11:42,956 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 22:11:42,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:11:42 BoogieIcfgContainer [2020-10-15 22:11:42,958 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 22:11:42,960 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 22:11:42,960 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 22:11:42,963 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 22:11:42,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:11:41" (1/3) ... [2020-10-15 22:11:42,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@452d27de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:11:42, skipping insertion in model container [2020-10-15 22:11:42,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:11:42" (2/3) ... [2020-10-15 22:11:42,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@452d27de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:11:42, skipping insertion in model container [2020-10-15 22:11:42,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:11:42" (3/3) ... [2020-10-15 22:11:42,967 INFO L111 eAbstractionObserver]: Analyzing ICFG safe015_tso.oepc.i [2020-10-15 22:11:42,979 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 22:11:42,979 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 22:11:42,987 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 22:11:42,988 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 22:11:43,015 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,016 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,016 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,016 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,017 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,017 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,018 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,018 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,018 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,018 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,019 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,019 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,019 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,020 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,020 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,020 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,020 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,021 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,024 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,025 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,025 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,025 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,031 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,031 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,032 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,032 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,034 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,035 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,035 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,035 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:11:43,051 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 22:11:43,072 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:11:43,072 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:11:43,072 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:11:43,072 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:11:43,073 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:11:43,073 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:11:43,073 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:11:43,073 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:11:43,084 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:11:43,087 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-15 22:11:43,089 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-15 22:11:43,090 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-15 22:11:43,130 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-15 22:11:43,130 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 22:11:43,136 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-15 22:11:43,139 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-15 22:11:44,688 INFO L132 LiptonReduction]: Checked pairs total: 2962 [2020-10-15 22:11:44,688 INFO L134 LiptonReduction]: Total number of compositions: 59 [2020-10-15 22:11:44,695 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-15 22:11:44,725 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-15 22:11:44,727 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-15 22:11:44,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 22:11:44,736 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:11:44,737 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:11:44,737 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:11:44,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:11:44,743 INFO L82 PathProgramCache]: Analyzing trace with hash -2122060928, now seen corresponding path program 1 times [2020-10-15 22:11:44,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:11:44,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252085960] [2020-10-15 22:11:44,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:11:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:11:44,971 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 22:11:44,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252085960] [2020-10-15 22:11:44,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:11:44,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:11:44,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977384310] [2020-10-15 22:11:44,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:11:44,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:11:44,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:11:44,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:11:44,996 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-15 22:11:45,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:11:45,052 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-15 22:11:45,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:11:45,054 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-15 22:11:45,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:11:45,077 INFO L225 Difference]: With dead ends: 282 [2020-10-15 22:11:45,078 INFO L226 Difference]: Without dead ends: 218 [2020-10-15 22:11:45,079 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:11:45,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-15 22:11:45,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-15 22:11:45,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-15 22:11:45,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-15 22:11:45,185 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-15 22:11:45,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:11:45,187 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-15 22:11:45,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:11:45,188 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-15 22:11:45,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 22:11:45,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:11:45,190 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:11:45,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 22:11:45,191 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:11:45,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:11:45,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1372085576, now seen corresponding path program 1 times [2020-10-15 22:11:45,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:11:45,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344063900] [2020-10-15 22:11:45,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:11:45,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:11:45,269 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 22:11:45,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344063900] [2020-10-15 22:11:45,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:11:45,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:11:45,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458894871] [2020-10-15 22:11:45,272 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:11:45,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:11:45,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:11:45,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:11:45,273 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 3 states. [2020-10-15 22:11:45,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:11:45,290 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-10-15 22:11:45,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:11:45,290 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-15 22:11:45,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:11:45,295 INFO L225 Difference]: With dead ends: 202 [2020-10-15 22:11:45,295 INFO L226 Difference]: Without dead ends: 202 [2020-10-15 22:11:45,296 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:11:45,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-15 22:11:45,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-15 22:11:45,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-15 22:11:45,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-10-15 22:11:45,345 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-10-15 22:11:45,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:11:45,346 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-10-15 22:11:45,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:11:45,347 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-10-15 22:11:45,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 22:11:45,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:11:45,350 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:11:45,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 22:11:45,350 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:11:45,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:11:45,353 INFO L82 PathProgramCache]: Analyzing trace with hash 365373016, now seen corresponding path program 1 times [2020-10-15 22:11:45,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:11:45,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728962965] [2020-10-15 22:11:45,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:11:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:11:45,446 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 22:11:45,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728962965] [2020-10-15 22:11:45,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:11:45,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:11:45,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001176773] [2020-10-15 22:11:45,448 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:11:45,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:11:45,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:11:45,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:11:45,449 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-10-15 22:11:45,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:11:45,458 INFO L93 Difference]: Finished difference Result 198 states and 530 transitions. [2020-10-15 22:11:45,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:11:45,459 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-15 22:11:45,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:11:45,461 INFO L225 Difference]: With dead ends: 198 [2020-10-15 22:11:45,461 INFO L226 Difference]: Without dead ends: 198 [2020-10-15 22:11:45,462 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:11:45,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-15 22:11:45,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-10-15 22:11:45,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-15 22:11:45,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 530 transitions. [2020-10-15 22:11:45,477 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 530 transitions. Word has length 10 [2020-10-15 22:11:45,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:11:45,477 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 530 transitions. [2020-10-15 22:11:45,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:11:45,477 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 530 transitions. [2020-10-15 22:11:45,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 22:11:45,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:11:45,479 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:11:45,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 22:11:45,479 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:11:45,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:11:45,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1571968161, now seen corresponding path program 1 times [2020-10-15 22:11:45,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:11:45,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300333241] [2020-10-15 22:11:45,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:11:45,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:11:45,512 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 22:11:45,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300333241] [2020-10-15 22:11:45,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:11:45,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:11:45,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168750940] [2020-10-15 22:11:45,514 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:11:45,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:11:45,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:11:45,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:11:45,515 INFO L87 Difference]: Start difference. First operand 198 states and 530 transitions. Second operand 3 states. [2020-10-15 22:11:45,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:11:45,521 INFO L93 Difference]: Finished difference Result 192 states and 511 transitions. [2020-10-15 22:11:45,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:11:45,521 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-15 22:11:45,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:11:45,524 INFO L225 Difference]: With dead ends: 192 [2020-10-15 22:11:45,524 INFO L226 Difference]: Without dead ends: 192 [2020-10-15 22:11:45,524 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:11:45,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-15 22:11:45,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2020-10-15 22:11:45,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-10-15 22:11:45,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 511 transitions. [2020-10-15 22:11:45,534 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 511 transitions. Word has length 11 [2020-10-15 22:11:45,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:11:45,534 INFO L481 AbstractCegarLoop]: Abstraction has 192 states and 511 transitions. [2020-10-15 22:11:45,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:11:45,535 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 511 transitions. [2020-10-15 22:11:45,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 22:11:45,536 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:11:45,536 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:11:45,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 22:11:45,537 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:11:45,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:11:45,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1486373385, now seen corresponding path program 1 times [2020-10-15 22:11:45,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:11:45,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041639520] [2020-10-15 22:11:45,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:11:45,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:11:45,612 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 22:11:45,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041639520] [2020-10-15 22:11:45,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:11:45,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:11:45,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366677514] [2020-10-15 22:11:45,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:11:45,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:11:45,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:11:45,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:11:45,615 INFO L87 Difference]: Start difference. First operand 192 states and 511 transitions. Second operand 4 states. [2020-10-15 22:11:45,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:11:45,652 INFO L93 Difference]: Finished difference Result 224 states and 554 transitions. [2020-10-15 22:11:45,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:11:45,652 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 22:11:45,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:11:45,654 INFO L225 Difference]: With dead ends: 224 [2020-10-15 22:11:45,654 INFO L226 Difference]: Without dead ends: 160 [2020-10-15 22:11:45,654 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 22:11:45,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-10-15 22:11:45,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-10-15 22:11:45,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-10-15 22:11:45,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 383 transitions. [2020-10-15 22:11:45,661 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 383 transitions. Word has length 12 [2020-10-15 22:11:45,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:11:45,662 INFO L481 AbstractCegarLoop]: Abstraction has 160 states and 383 transitions. [2020-10-15 22:11:45,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:11:45,662 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 383 transitions. [2020-10-15 22:11:45,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:11:45,663 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:11:45,663 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:11:45,664 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 22:11:45,664 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:11:45,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:11:45,664 INFO L82 PathProgramCache]: Analyzing trace with hash 887113091, now seen corresponding path program 1 times [2020-10-15 22:11:45,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:11:45,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424862135] [2020-10-15 22:11:45,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:11:45,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:11:45,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:11:45,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424862135] [2020-10-15 22:11:45,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:11:45,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:11:45,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286039321] [2020-10-15 22:11:45,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:11:45,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:11:45,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:11:45,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:11:45,756 INFO L87 Difference]: Start difference. First operand 160 states and 383 transitions. Second operand 5 states. [2020-10-15 22:11:45,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:11:45,806 INFO L93 Difference]: Finished difference Result 160 states and 362 transitions. [2020-10-15 22:11:45,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:11:45,806 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 22:11:45,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:11:45,808 INFO L225 Difference]: With dead ends: 160 [2020-10-15 22:11:45,808 INFO L226 Difference]: Without dead ends: 123 [2020-10-15 22:11:45,808 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:11:45,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-10-15 22:11:45,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-10-15 22:11:45,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-15 22:11:45,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 272 transitions. [2020-10-15 22:11:45,813 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 272 transitions. Word has length 13 [2020-10-15 22:11:45,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:11:45,813 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 272 transitions. [2020-10-15 22:11:45,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:11:45,813 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 272 transitions. [2020-10-15 22:11:45,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 22:11:45,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:11:45,814 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:11:45,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 22:11:45,815 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:11:45,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:11:45,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1920279248, now seen corresponding path program 1 times [2020-10-15 22:11:45,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:11:45,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752477967] [2020-10-15 22:11:45,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:11:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:11:45,843 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 22:11:45,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752477967] [2020-10-15 22:11:45,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:11:45,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:11:45,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716192661] [2020-10-15 22:11:45,844 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:11:45,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:11:45,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:11:45,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:11:45,845 INFO L87 Difference]: Start difference. First operand 123 states and 272 transitions. Second operand 3 states. [2020-10-15 22:11:45,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:11:45,856 INFO L93 Difference]: Finished difference Result 155 states and 330 transitions. [2020-10-15 22:11:45,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:11:45,856 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-15 22:11:45,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:11:45,858 INFO L225 Difference]: With dead ends: 155 [2020-10-15 22:11:45,858 INFO L226 Difference]: Without dead ends: 124 [2020-10-15 22:11:45,858 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:11:45,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-15 22:11:45,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 122. [2020-10-15 22:11:45,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-15 22:11:45,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 257 transitions. [2020-10-15 22:11:45,862 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 257 transitions. Word has length 14 [2020-10-15 22:11:45,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:11:45,863 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 257 transitions. [2020-10-15 22:11:45,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:11:45,863 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 257 transitions. [2020-10-15 22:11:45,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:11:45,864 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:11:45,864 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:11:45,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 22:11:45,864 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:11:45,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:11:45,865 INFO L82 PathProgramCache]: Analyzing trace with hash 451653261, now seen corresponding path program 1 times [2020-10-15 22:11:45,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:11:45,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602541340] [2020-10-15 22:11:45,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:11:45,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:11:45,897 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 22:11:45,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602541340] [2020-10-15 22:11:45,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:11:45,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:11:45,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429782939] [2020-10-15 22:11:45,899 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:11:45,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:11:45,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:11:45,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:11:45,900 INFO L87 Difference]: Start difference. First operand 122 states and 257 transitions. Second operand 4 states. [2020-10-15 22:11:45,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:11:45,919 INFO L93 Difference]: Finished difference Result 154 states and 308 transitions. [2020-10-15 22:11:45,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 22:11:45,919 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-15 22:11:45,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:11:45,920 INFO L225 Difference]: With dead ends: 154 [2020-10-15 22:11:45,921 INFO L226 Difference]: Without dead ends: 116 [2020-10-15 22:11:45,921 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 22:11:45,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-15 22:11:45,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2020-10-15 22:11:45,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-15 22:11:45,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 222 transitions. [2020-10-15 22:11:45,925 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 222 transitions. Word has length 15 [2020-10-15 22:11:45,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:11:45,925 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 222 transitions. [2020-10-15 22:11:45,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:11:45,926 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 222 transitions. [2020-10-15 22:11:45,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:11:45,926 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:11:45,926 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:11:45,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 22:11:45,927 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:11:45,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:11:45,927 INFO L82 PathProgramCache]: Analyzing trace with hash -600886075, now seen corresponding path program 1 times [2020-10-15 22:11:45,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:11:45,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583525474] [2020-10-15 22:11:45,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:11:45,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:11:45,992 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 22:11:45,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583525474] [2020-10-15 22:11:45,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:11:45,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 22:11:45,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906193259] [2020-10-15 22:11:45,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 22:11:45,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:11:45,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 22:11:45,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:11:45,994 INFO L87 Difference]: Start difference. First operand 114 states and 222 transitions. Second operand 6 states. [2020-10-15 22:11:46,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:11:46,048 INFO L93 Difference]: Finished difference Result 110 states and 212 transitions. [2020-10-15 22:11:46,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 22:11:46,048 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-15 22:11:46,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:11:46,049 INFO L225 Difference]: With dead ends: 110 [2020-10-15 22:11:46,049 INFO L226 Difference]: Without dead ends: 38 [2020-10-15 22:11:46,050 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:11:46,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-15 22:11:46,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-15 22:11:46,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-15 22:11:46,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 62 transitions. [2020-10-15 22:11:46,052 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 62 transitions. Word has length 15 [2020-10-15 22:11:46,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:11:46,052 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 62 transitions. [2020-10-15 22:11:46,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 22:11:46,052 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2020-10-15 22:11:46,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 22:11:46,053 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:11:46,053 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 22:11:46,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 22:11:46,053 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:11:46,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:11:46,054 INFO L82 PathProgramCache]: Analyzing trace with hash 13395029, now seen corresponding path program 1 times [2020-10-15 22:11:46,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:11:46,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401795232] [2020-10-15 22:11:46,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:11:46,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:11:46,086 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 22:11:46,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401795232] [2020-10-15 22:11:46,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:11:46,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:11:46,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238990467] [2020-10-15 22:11:46,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:11:46,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:11:46,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:11:46,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:11:46,088 INFO L87 Difference]: Start difference. First operand 38 states and 62 transitions. Second operand 4 states. [2020-10-15 22:11:46,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:11:46,104 INFO L93 Difference]: Finished difference Result 51 states and 83 transitions. [2020-10-15 22:11:46,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:11:46,105 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-15 22:11:46,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:11:46,105 INFO L225 Difference]: With dead ends: 51 [2020-10-15 22:11:46,105 INFO L226 Difference]: Without dead ends: 30 [2020-10-15 22:11:46,106 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 22:11:46,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-15 22:11:46,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-15 22:11:46,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-15 22:11:46,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-10-15 22:11:46,108 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-10-15 22:11:46,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:11:46,108 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-10-15 22:11:46,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:11:46,108 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-10-15 22:11:46,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 22:11:46,109 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:11:46,109 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 22:11:46,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 22:11:46,109 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:11:46,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:11:46,109 INFO L82 PathProgramCache]: Analyzing trace with hash -34011261, now seen corresponding path program 2 times [2020-10-15 22:11:46,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:11:46,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648168596] [2020-10-15 22:11:46,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:11:46,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:11:46,142 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 22:11:46,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648168596] [2020-10-15 22:11:46,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:11:46,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:11:46,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777489474] [2020-10-15 22:11:46,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:11:46,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:11:46,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:11:46,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:11:46,144 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-10-15 22:11:46,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:11:46,156 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-10-15 22:11:46,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 22:11:46,157 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-15 22:11:46,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:11:46,157 INFO L225 Difference]: With dead ends: 29 [2020-10-15 22:11:46,157 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 22:11:46,158 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 22:11:46,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 22:11:46,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 22:11:46,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 22:11:46,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 22:11:46,159 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-15 22:11:46,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:11:46,159 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 22:11:46,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:11:46,159 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 22:11:46,160 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 22:11:46,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 22:11:46,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 10:11:46 BasicIcfg [2020-10-15 22:11:46,163 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 22:11:46,166 INFO L168 Benchmark]: Toolchain (without parser) took 4413.32 ms. Allocated memory was 246.4 MB in the beginning and 366.0 MB in the end (delta: 119.5 MB). Free memory was 201.4 MB in the beginning and 222.8 MB in the end (delta: -21.4 MB). Peak memory consumption was 98.1 MB. Max. memory is 14.2 GB. [2020-10-15 22:11:46,167 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 246.4 MB. Free memory is still 222.8 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:11:46,168 INFO L168 Benchmark]: CACSL2BoogieTranslator took 709.33 ms. Allocated memory was 246.4 MB in the beginning and 300.4 MB in the end (delta: 54.0 MB). Free memory was 201.4 MB in the beginning and 255.6 MB in the end (delta: -54.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 14.2 GB. [2020-10-15 22:11:46,168 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.21 ms. Allocated memory is still 300.4 MB. Free memory was 255.6 MB in the beginning and 253.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:11:46,169 INFO L168 Benchmark]: Boogie Preprocessor took 27.41 ms. Allocated memory is still 300.4 MB. Free memory was 253.1 MB in the beginning and 250.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:11:46,170 INFO L168 Benchmark]: RCFGBuilder took 422.36 ms. Allocated memory is still 300.4 MB. Free memory was 250.5 MB in the beginning and 228.7 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. [2020-10-15 22:11:46,171 INFO L168 Benchmark]: TraceAbstraction took 3203.85 ms. Allocated memory was 300.4 MB in the beginning and 366.0 MB in the end (delta: 65.5 MB). Free memory was 228.7 MB in the beginning and 222.8 MB in the end (delta: 5.9 MB). Peak memory consumption was 71.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:11:46,174 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 246.4 MB. Free memory is still 222.8 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 709.33 ms. Allocated memory was 246.4 MB in the beginning and 300.4 MB in the end (delta: 54.0 MB). Free memory was 201.4 MB in the beginning and 255.6 MB in the end (delta: -54.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 45.21 ms. Allocated memory is still 300.4 MB. Free memory was 255.6 MB in the beginning and 253.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 27.41 ms. Allocated memory is still 300.4 MB. Free memory was 253.1 MB in the beginning and 250.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 422.36 ms. Allocated memory is still 300.4 MB. Free memory was 250.5 MB in the beginning and 228.7 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3203.85 ms. Allocated memory was 300.4 MB in the beginning and 366.0 MB in the end (delta: 65.5 MB). Free memory was 228.7 MB in the beginning and 222.8 MB in the end (delta: 5.9 MB). Peak memory consumption was 71.5 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 824 VarBasedMoverChecksPositive, 47 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 58 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 77 PlacesBefore, 31 PlacesAfterwards, 69 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 59 TotalNumberOfCompositions, 2962 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 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.0s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 216 SDtfs, 131 SDslu, 232 SDs, 0 SdLazy, 130 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 4600 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...