/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 21:23:04,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 21:23:04,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 21:23:04,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 21:23:04,442 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 21:23:04,444 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 21:23:04,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 21:23:04,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 21:23:04,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 21:23:04,452 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 21:23:04,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 21:23:04,456 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 21:23:04,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 21:23:04,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 21:23:04,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 21:23:04,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 21:23:04,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 21:23:04,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 21:23:04,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 21:23:04,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 21:23:04,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 21:23:04,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 21:23:04,476 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 21:23:04,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 21:23:04,483 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-20 21:23:04,483 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-20 21:23:04,484 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-20 21:23:04,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-20 21:23:04,485 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-20 21:23:04,487 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-20 21:23:04,487 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 21:23:04,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 21:23:04,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 21:23:04,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 21:23:04,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 21:23:04,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 21:23:04,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 21:23:04,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 21:23:04,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 21:23:04,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 21:23:04,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 21:23:04,496 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-NoLbe-keepdead.epf [2021-01-20 21:23:04,523 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 21:23:04,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 21:23:04,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 21:23:04,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 21:23:04,526 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 21:23:04,526 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 21:23:04,526 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 21:23:04,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 21:23:04,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 21:23:04,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 21:23:04,527 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 21:23:04,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 21:23:04,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 21:23:04,528 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 21:23:04,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 21:23:04,528 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 21:23:04,529 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 21:23:04,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 21:23:04,529 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 21:23:04,530 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 21:23:04,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 21:23:04,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:23:04,530 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 21:23:04,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 21:23:04,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 21:23:04,531 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 21:23:04,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 21:23:04,532 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 21:23:04,532 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 21:23:04,532 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2021-01-20 21:23:04,532 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 21:23:04,533 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 21:23:04,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 21:23:04,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 21:23:04,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 21:23:04,931 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 21:23:04,933 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 21:23:04,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i [2021-01-20 21:23:05,017 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7f427f5a/c54e9c486eb14bc9963b3f00171e9113/FLAG5d2f68fe4 [2021-01-20 21:23:05,844 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 21:23:05,845 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i [2021-01-20 21:23:05,867 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7f427f5a/c54e9c486eb14bc9963b3f00171e9113/FLAG5d2f68fe4 [2021-01-20 21:23:06,056 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7f427f5a/c54e9c486eb14bc9963b3f00171e9113 [2021-01-20 21:23:06,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 21:23:06,064 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 21:23:06,069 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 21:23:06,069 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 21:23:06,073 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 21:23:06,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:23:06" (1/1) ... [2021-01-20 21:23:06,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@da1595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:23:06, skipping insertion in model container [2021-01-20 21:23:06,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:23:06" (1/1) ... [2021-01-20 21:23:06,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 21:23:06,157 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 21:23:06,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:23:06,604 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 21:23:06,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:23:06,771 INFO L208 MainTranslator]: Completed translation [2021-01-20 21:23:06,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:23:06 WrapperNode [2021-01-20 21:23:06,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 21:23:06,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 21:23:06,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 21:23:06,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 21:23:06,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:23:06" (1/1) ... [2021-01-20 21:23:06,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:23:06" (1/1) ... [2021-01-20 21:23:06,824 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 21:23:06,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 21:23:06,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 21:23:06,826 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 21:23:06,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:23:06" (1/1) ... [2021-01-20 21:23:06,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:23:06" (1/1) ... [2021-01-20 21:23:06,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:23:06" (1/1) ... [2021-01-20 21:23:06,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:23:06" (1/1) ... [2021-01-20 21:23:06,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:23:06" (1/1) ... [2021-01-20 21:23:06,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:23:06" (1/1) ... [2021-01-20 21:23:06,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:23:06" (1/1) ... [2021-01-20 21:23:06,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 21:23:06,864 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 21:23:06,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 21:23:06,865 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 21:23:06,866 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:23:06" (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 [2021-01-20 21:23:06,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 21:23:06,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 21:23:06,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 21:23:06,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 21:23:06,961 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 21:23:06,963 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 21:23:06,963 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 21:23:06,964 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 21:23:06,964 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 21:23:06,965 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 21:23:06,965 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-01-20 21:23:06,965 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-01-20 21:23:06,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 21:23:06,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 21:23:06,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 21:23:06,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 21:23:06,968 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 21:23:07,405 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 21:23:07,406 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 21:23:07,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:23:07 BoogieIcfgContainer [2021-01-20 21:23:07,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 21:23:07,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 21:23:07,410 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 21:23:07,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 21:23:07,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 09:23:06" (1/3) ... [2021-01-20 21:23:07,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e336c90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:23:07, skipping insertion in model container [2021-01-20 21:23:07,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:23:06" (2/3) ... [2021-01-20 21:23:07,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e336c90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:23:07, skipping insertion in model container [2021-01-20 21:23:07,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:23:07" (3/3) ... [2021-01-20 21:23:07,418 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_pso.opt.i [2021-01-20 21:23:07,438 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 21:23:07,438 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 21:23:07,443 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 21:23:07,444 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 21:23:07,488 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,488 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,489 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,489 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,489 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,489 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,490 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,490 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,490 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,490 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,491 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,491 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,491 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,492 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,492 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,493 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,493 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,493 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,495 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,496 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,496 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,496 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,496 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,497 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,497 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,497 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,497 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,498 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,498 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,498 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,498 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,499 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,499 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,499 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,499 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,499 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,500 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,500 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,500 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,500 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,501 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,501 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,503 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,504 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,504 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,504 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,511 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,511 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,512 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,512 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,515 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,515 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,515 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,515 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,518 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,518 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,518 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,518 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:23:07,520 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 21:23:07,534 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-01-20 21:23:07,560 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 21:23:07,561 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 21:23:07,561 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 21:23:07,561 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 21:23:07,561 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 21:23:07,561 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 21:23:07,561 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 21:23:07,561 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 21:23:07,576 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 101 places, 91 transitions, 202 flow [2021-01-20 21:23:16,641 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 54313 states, 54311 states have (on average 4.420191121503931) internal successors, (240065), 54312 states have internal predecessors, (240065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:23:16,932 INFO L276 IsEmpty]: Start isEmpty. Operand has 54313 states, 54311 states have (on average 4.420191121503931) internal successors, (240065), 54312 states have internal predecessors, (240065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:23:17,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-20 21:23:17,071 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:23:17,073 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:23:17,073 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:23:17,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:23:17,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1453792105, now seen corresponding path program 1 times [2021-01-20 21:23:17,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:23:17,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054718145] [2021-01-20 21:23:17,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:23:17,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:23:17,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:23:17,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054718145] [2021-01-20 21:23:17,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:23:17,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:23:17,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555516915] [2021-01-20 21:23:17,699 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:23:17,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:23:17,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:23:17,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:23:17,786 INFO L87 Difference]: Start difference. First operand has 54313 states, 54311 states have (on average 4.420191121503931) internal successors, (240065), 54312 states have internal predecessors, (240065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:23:18,202 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-01-20 21:23:19,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:23:19,486 INFO L93 Difference]: Finished difference Result 68929 states and 296105 transitions. [2021-01-20 21:23:19,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:23:19,493 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-01-20 21:23:19,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:23:19,502 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:23:19,502 INFO L78 Accepts]: Start accepts. Automaton has 68929 states and 296105 transitions. Word has length 47 [2021-01-20 21:23:19,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:23:19,504 INFO L481 AbstractCegarLoop]: Abstraction has 68929 states and 296105 transitions. [2021-01-20 21:23:19,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:23:19,505 INFO L276 IsEmpty]: Start isEmpty. Operand 68929 states and 296105 transitions. [2021-01-20 21:23:19,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-20 21:23:19,643 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:23:19,643 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:23:19,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 21:23:19,644 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:23:19,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:23:19,647 INFO L82 PathProgramCache]: Analyzing trace with hash 2134201304, now seen corresponding path program 1 times [2021-01-20 21:23:19,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:23:19,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350696209] [2021-01-20 21:23:19,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:23:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:23:20,033 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2021-01-20 21:23:20,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:23:20,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350696209] [2021-01-20 21:23:20,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:23:20,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:23:20,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966670237] [2021-01-20 21:23:20,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:23:20,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:23:20,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:23:20,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:23:20,112 INFO L87 Difference]: Start difference. First operand 68929 states and 296105 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:23:21,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:23:21,595 INFO L93 Difference]: Finished difference Result 100849 states and 429361 transitions. [2021-01-20 21:23:21,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:23:21,596 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-01-20 21:23:21,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:23:21,599 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-01-20 21:23:21,599 INFO L78 Accepts]: Start accepts. Automaton has 100849 states and 429361 transitions. Word has length 49 [2021-01-20 21:23:21,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:23:21,602 INFO L481 AbstractCegarLoop]: Abstraction has 100849 states and 429361 transitions. [2021-01-20 21:23:21,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:23:21,602 INFO L276 IsEmpty]: Start isEmpty. Operand 100849 states and 429361 transitions. [2021-01-20 21:23:21,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-20 21:23:21,695 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:23:21,695 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:23:21,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 21:23:21,695 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:23:21,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:23:21,696 INFO L82 PathProgramCache]: Analyzing trace with hash -821966825, now seen corresponding path program 1 times [2021-01-20 21:23:21,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:23:21,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393771314] [2021-01-20 21:23:21,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:23:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:23:21,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:23:21,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393771314] [2021-01-20 21:23:21,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:23:21,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:23:21,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696408354] [2021-01-20 21:23:21,820 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:23:21,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:23:21,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:23:21,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:23:21,821 INFO L87 Difference]: Start difference. First operand 100849 states and 429361 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:23:23,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:23:23,963 INFO L93 Difference]: Finished difference Result 153649 states and 650721 transitions. [2021-01-20 21:23:23,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:23:23,964 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-01-20 21:23:23,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:23:23,964 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:23:23,965 INFO L78 Accepts]: Start accepts. Automaton has 153649 states and 650721 transitions. Word has length 51 [2021-01-20 21:23:23,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:23:23,966 INFO L481 AbstractCegarLoop]: Abstraction has 153649 states and 650721 transitions. [2021-01-20 21:23:23,966 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:23:23,966 INFO L276 IsEmpty]: Start isEmpty. Operand 153649 states and 650721 transitions. [2021-01-20 21:23:24,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-20 21:23:24,117 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:23:24,117 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:23:24,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 21:23:24,127 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:23:24,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:23:24,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1748725576, now seen corresponding path program 1 times [2021-01-20 21:23:24,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:23:24,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662060798] [2021-01-20 21:23:24,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:23:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:23:24,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:23:24,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662060798] [2021-01-20 21:23:24,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:23:24,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:23:24,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230629953] [2021-01-20 21:23:24,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:23:24,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:23:24,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:23:24,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:23:24,383 INFO L87 Difference]: Start difference. First operand 153649 states and 650721 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:23:27,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:23:27,525 INFO L93 Difference]: Finished difference Result 235009 states and 985549 transitions. [2021-01-20 21:23:27,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:23:27,526 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-01-20 21:23:27,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:23:27,526 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-01-20 21:23:27,527 INFO L78 Accepts]: Start accepts. Automaton has 235009 states and 985549 transitions. Word has length 53 [2021-01-20 21:23:27,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:23:27,527 INFO L481 AbstractCegarLoop]: Abstraction has 235009 states and 985549 transitions. [2021-01-20 21:23:27,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:23:27,528 INFO L276 IsEmpty]: Start isEmpty. Operand 235009 states and 985549 transitions. [2021-01-20 21:23:27,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-20 21:23:27,830 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:23:27,830 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:23:27,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 21:23:27,831 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:23:27,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:23:27,844 INFO L82 PathProgramCache]: Analyzing trace with hash 426422777, now seen corresponding path program 1 times [2021-01-20 21:23:27,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:23:27,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569337304] [2021-01-20 21:23:27,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:23:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:23:28,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:23:28,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569337304] [2021-01-20 21:23:28,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:23:28,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:23:28,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979060308] [2021-01-20 21:23:28,070 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:23:28,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:23:28,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:23:28,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:23:28,072 INFO L87 Difference]: Start difference. First operand 235009 states and 985549 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:23:30,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:23:30,906 INFO L93 Difference]: Finished difference Result 214621 states and 887342 transitions. [2021-01-20 21:23:30,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 21:23:30,907 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-20 21:23:30,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:23:30,908 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:23:30,908 INFO L78 Accepts]: Start accepts. Automaton has 214621 states and 887342 transitions. Word has length 55 [2021-01-20 21:23:30,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:23:30,909 INFO L481 AbstractCegarLoop]: Abstraction has 214621 states and 887342 transitions. [2021-01-20 21:23:30,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:23:30,909 INFO L276 IsEmpty]: Start isEmpty. Operand 214621 states and 887342 transitions. [2021-01-20 21:23:31,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-01-20 21:23:31,232 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:23:31,232 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:23:31,232 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 21:23:31,233 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:23:31,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:23:31,233 INFO L82 PathProgramCache]: Analyzing trace with hash 809833087, now seen corresponding path program 1 times [2021-01-20 21:23:31,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:23:31,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873570512] [2021-01-20 21:23:31,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:23:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:23:31,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:23:31,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873570512] [2021-01-20 21:23:31,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:23:31,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:23:31,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486961281] [2021-01-20 21:23:31,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:23:31,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:23:31,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:23:31,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:23:31,451 INFO L87 Difference]: Start difference. First operand 214621 states and 887342 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:23:33,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:23:33,189 INFO L93 Difference]: Finished difference Result 157117 states and 634176 transitions. [2021-01-20 21:23:33,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:23:33,190 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-01-20 21:23:33,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:23:33,191 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:23:33,191 INFO L78 Accepts]: Start accepts. Automaton has 157117 states and 634176 transitions. Word has length 56 [2021-01-20 21:23:33,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:23:33,191 INFO L481 AbstractCegarLoop]: Abstraction has 157117 states and 634176 transitions. [2021-01-20 21:23:33,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:23:33,192 INFO L276 IsEmpty]: Start isEmpty. Operand 157117 states and 634176 transitions. [2021-01-20 21:23:34,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-01-20 21:23:34,228 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:23:34,229 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:23:34,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 21:23:34,229 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:23:34,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:23:34,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1848601464, now seen corresponding path program 1 times [2021-01-20 21:23:34,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:23:34,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520046689] [2021-01-20 21:23:34,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:23:34,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:23:34,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:23:34,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520046689] [2021-01-20 21:23:34,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:23:34,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-20 21:23:34,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891117782] [2021-01-20 21:23:34,407 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-20 21:23:34,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:23:34,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-20 21:23:34,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-20 21:23:34,409 INFO L87 Difference]: Start difference. First operand 157117 states and 634176 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:23:35,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:23:35,237 INFO L93 Difference]: Finished difference Result 101641 states and 403113 transitions. [2021-01-20 21:23:35,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-01-20 21:23:35,237 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-01-20 21:23:35,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:23:35,238 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2021-01-20 21:23:35,238 INFO L78 Accepts]: Start accepts. Automaton has 101641 states and 403113 transitions. Word has length 57 [2021-01-20 21:23:35,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:23:35,238 INFO L481 AbstractCegarLoop]: Abstraction has 101641 states and 403113 transitions. [2021-01-20 21:23:35,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:23:35,239 INFO L276 IsEmpty]: Start isEmpty. Operand 101641 states and 403113 transitions. [2021-01-20 21:23:36,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-01-20 21:23:36,133 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:23:36,134 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:23:36,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 21:23:36,134 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:23:36,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:23:36,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1336651321, now seen corresponding path program 1 times [2021-01-20 21:23:36,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:23:36,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654343051] [2021-01-20 21:23:36,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:23:36,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:23:36,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:23:36,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654343051] [2021-01-20 21:23:36,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:23:36,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-20 21:23:36,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585861915] [2021-01-20 21:23:36,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-20 21:23:36,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:23:36,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-20 21:23:36,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-01-20 21:23:36,355 INFO L87 Difference]: Start difference. First operand 101641 states and 403113 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:23:37,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:23:37,334 INFO L93 Difference]: Finished difference Result 75613 states and 300405 transitions. [2021-01-20 21:23:37,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-01-20 21:23:37,334 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-01-20 21:23:37,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:23:37,335 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2021-01-20 21:23:37,335 INFO L78 Accepts]: Start accepts. Automaton has 75613 states and 300405 transitions. Word has length 59 [2021-01-20 21:23:37,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:23:37,336 INFO L481 AbstractCegarLoop]: Abstraction has 75613 states and 300405 transitions. [2021-01-20 21:23:37,336 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:23:37,336 INFO L276 IsEmpty]: Start isEmpty. Operand 75613 states and 300405 transitions. [2021-01-20 21:23:37,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-01-20 21:23:37,477 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:23:37,478 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:23:37,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-20 21:23:37,478 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:23:37,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:23:37,478 INFO L82 PathProgramCache]: Analyzing trace with hash -106927622, now seen corresponding path program 1 times [2021-01-20 21:23:37,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:23:37,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441838014] [2021-01-20 21:23:37,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:23:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:23:37,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:23:37,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441838014] [2021-01-20 21:23:37,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:23:37,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:23:37,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661606581] [2021-01-20 21:23:37,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:23:37,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:23:37,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:23:37,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:23:37,600 INFO L87 Difference]: Start difference. First operand 75613 states and 300405 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:23:39,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:23:39,113 INFO L93 Difference]: Finished difference Result 120353 states and 472361 transitions. [2021-01-20 21:23:39,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 21:23:39,116 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-01-20 21:23:39,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:23:39,116 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:23:39,116 INFO L78 Accepts]: Start accepts. Automaton has 120353 states and 472361 transitions. Word has length 61 [2021-01-20 21:23:39,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:23:39,117 INFO L481 AbstractCegarLoop]: Abstraction has 120353 states and 472361 transitions. [2021-01-20 21:23:39,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:23:39,118 INFO L276 IsEmpty]: Start isEmpty. Operand 120353 states and 472361 transitions. [2021-01-20 21:23:39,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-01-20 21:23:39,326 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:23:39,326 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:23:39,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-20 21:23:39,327 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:23:39,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:23:39,327 INFO L82 PathProgramCache]: Analyzing trace with hash 903632240, now seen corresponding path program 2 times [2021-01-20 21:23:39,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:23:39,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090705479] [2021-01-20 21:23:39,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:23:39,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:23:39,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:23:39,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090705479] [2021-01-20 21:23:39,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:23:39,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:23:39,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80678231] [2021-01-20 21:23:39,428 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:23:39,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:23:39,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:23:39,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:23:39,429 INFO L87 Difference]: Start difference. First operand 120353 states and 472361 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:23:41,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:23:41,349 INFO L93 Difference]: Finished difference Result 184964 states and 719108 transitions. [2021-01-20 21:23:41,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 21:23:41,350 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-01-20 21:23:41,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:23:41,350 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:23:41,351 INFO L78 Accepts]: Start accepts. Automaton has 184964 states and 719108 transitions. Word has length 61 [2021-01-20 21:23:41,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:23:41,351 INFO L481 AbstractCegarLoop]: Abstraction has 184964 states and 719108 transitions. [2021-01-20 21:23:41,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:23:41,351 INFO L276 IsEmpty]: Start isEmpty. Operand 184964 states and 719108 transitions. [2021-01-20 21:23:42,609 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 21:23:42,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-20 21:23:42,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 09:23:42 BasicIcfg [2021-01-20 21:23:42,626 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 21:23:42,633 INFO L168 Benchmark]: Toolchain (without parser) took 36567.22 ms. Allocated memory was 302.0 MB in the beginning and 13.1 GB in the end (delta: 12.8 GB). Free memory was 276.9 MB in the beginning and 9.5 GB in the end (delta: -9.2 GB). Peak memory consumption was 4.0 GB. Max. memory is 16.0 GB. [2021-01-20 21:23:42,634 INFO L168 Benchmark]: CDTParser took 0.73 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:23:42,636 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.06 ms. Allocated memory is still 302.0 MB. Free memory was 276.6 MB in the beginning and 245.4 MB in the end (delta: 31.2 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-01-20 21:23:42,637 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.23 ms. Allocated memory is still 302.0 MB. Free memory was 245.4 MB in the beginning and 243.4 MB in the end (delta: 2.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:23:42,641 INFO L168 Benchmark]: Boogie Preprocessor took 38.26 ms. Allocated memory is still 302.0 MB. Free memory was 243.4 MB in the beginning and 283.9 MB in the end (delta: -40.5 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.0 GB. [2021-01-20 21:23:42,642 INFO L168 Benchmark]: RCFGBuilder took 544.07 ms. Allocated memory is still 302.0 MB. Free memory was 283.9 MB in the beginning and 259.8 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:23:42,643 INFO L168 Benchmark]: TraceAbstraction took 35216.21 ms. Allocated memory was 302.0 MB in the beginning and 13.1 GB in the end (delta: 12.8 GB). Free memory was 258.7 MB in the beginning and 9.5 GB in the end (delta: -9.2 GB). Peak memory consumption was 4.0 GB. Max. memory is 16.0 GB. [2021-01-20 21:23:42,657 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 704.06 ms. Allocated memory is still 302.0 MB. Free memory was 276.6 MB in the beginning and 245.4 MB in the end (delta: 31.2 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 51.23 ms. Allocated memory is still 302.0 MB. Free memory was 245.4 MB in the beginning and 243.4 MB in the end (delta: 2.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 38.26 ms. Allocated memory is still 302.0 MB. Free memory was 243.4 MB in the beginning and 283.9 MB in the end (delta: -40.5 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.0 GB. * RCFGBuilder took 544.07 ms. Allocated memory is still 302.0 MB. Free memory was 283.9 MB in the beginning and 259.8 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 35216.21 ms. Allocated memory was 302.0 MB in the beginning and 13.1 GB in the end (delta: 12.8 GB). Free memory was 258.7 MB in the beginning and 9.5 GB in the end (delta: -9.2 GB). Peak memory consumption was 4.0 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: 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, 89 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 35.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 18.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.0s, HoareTripleCheckerStatistics: 1316 SDtfs, 2977 SDslu, 4875 SDs, 0 SdLazy, 550 SolverSat, 183 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 145 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=235009occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 549 NumberOfCodeBlocks, 549 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 539 ConstructedInterpolants, 0 QuantifiedInterpolants, 83341 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...