/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-New_States.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 12:13:11,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 12:13:11,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 12:13:11,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 12:13:11,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 12:13:11,349 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 12:13:11,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 12:13:11,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 12:13:11,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 12:13:11,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 12:13:11,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 12:13:11,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 12:13:11,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 12:13:11,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 12:13:11,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 12:13:11,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 12:13:11,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 12:13:11,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 12:13:11,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 12:13:11,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 12:13:11,406 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 12:13:11,408 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 12:13:11,409 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 12:13:11,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 12:13:11,423 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-12 12:13:11,428 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 12:13:11,429 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 12:13:11,431 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 12:13:11,432 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 12:13:11,433 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 12:13:11,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 12:13:11,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 12:13:11,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 12:13:11,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 12:13:11,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 12:13:11,438 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 12:13:11,439 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-New_States.epf [2020-11-12 12:13:11,502 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 12:13:11,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 12:13:11,507 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 12:13:11,507 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 12:13:11,508 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 12:13:11,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 12:13:11,508 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 12:13:11,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 12:13:11,509 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 12:13:11,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 12:13:11,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 12:13:11,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 12:13:11,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 12:13:11,512 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 12:13:11,512 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 12:13:11,512 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 12:13:11,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 12:13:11,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 12:13:11,513 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 12:13:11,513 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 12:13:11,513 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 12:13:11,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:13:11,514 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 12:13:11,514 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 12:13:11,514 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 12:13:11,515 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 12:13:11,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 12:13:11,515 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 12:13:11,515 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 12:13:11,515 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 12:13:11,516 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=NEW_STATES 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 12:13:11,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 12:13:12,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 12:13:12,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 12:13:12,008 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 12:13:12,008 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 12:13:12,009 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i [2020-11-12 12:13:12,098 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21484594d/be0f2f01679f46aba0f48a9585e07005/FLAGf183ab800 [2020-11-12 12:13:12,775 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 12:13:12,776 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i [2020-11-12 12:13:12,799 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21484594d/be0f2f01679f46aba0f48a9585e07005/FLAGf183ab800 [2020-11-12 12:13:13,074 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21484594d/be0f2f01679f46aba0f48a9585e07005 [2020-11-12 12:13:13,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 12:13:13,085 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 12:13:13,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 12:13:13,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 12:13:13,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 12:13:13,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:13:13" (1/1) ... [2020-11-12 12:13:13,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@255d2455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:13, skipping insertion in model container [2020-11-12 12:13:13,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:13:13" (1/1) ... [2020-11-12 12:13:13,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 12:13:13,179 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 12:13:13,595 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:13:13,609 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 12:13:13,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:13:13,789 INFO L208 MainTranslator]: Completed translation [2020-11-12 12:13:13,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:13 WrapperNode [2020-11-12 12:13:13,790 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 12:13:13,791 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 12:13:13,791 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 12:13:13,792 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 12:13:13,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:13" (1/1) ... [2020-11-12 12:13:13,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:13" (1/1) ... [2020-11-12 12:13:13,843 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 12:13:13,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 12:13:13,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 12:13:13,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 12:13:13,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:13" (1/1) ... [2020-11-12 12:13:13,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:13" (1/1) ... [2020-11-12 12:13:13,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:13" (1/1) ... [2020-11-12 12:13:13,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:13" (1/1) ... [2020-11-12 12:13:13,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:13" (1/1) ... [2020-11-12 12:13:13,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:13" (1/1) ... [2020-11-12 12:13:13,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:13" (1/1) ... [2020-11-12 12:13:13,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 12:13:13,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 12:13:13,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 12:13:13,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 12:13:13,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:13" (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 [2020-11-12 12:13:13,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 12:13:13,962 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 12:13:13,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 12:13:13,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 12:13:13,964 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 12:13:13,965 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 12:13:13,966 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 12:13:13,966 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 12:13:13,967 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 12:13:13,968 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 12:13:13,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 12:13:13,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 12:13:13,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 12:13:13,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 12:13:13,970 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 12:13:14,408 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 12:13:14,408 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 12:13:14,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:13:14 BoogieIcfgContainer [2020-11-12 12:13:14,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 12:13:14,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 12:13:14,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 12:13:14,416 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 12:13:14,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:13:13" (1/3) ... [2020-11-12 12:13:14,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9ddf2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:13:14, skipping insertion in model container [2020-11-12 12:13:14,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:13" (2/3) ... [2020-11-12 12:13:14,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9ddf2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:13:14, skipping insertion in model container [2020-11-12 12:13:14,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:13:14" (3/3) ... [2020-11-12 12:13:14,420 INFO L111 eAbstractionObserver]: Analyzing ICFG safe000_pso.oepc.i [2020-11-12 12:13:14,437 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 12:13:14,437 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 12:13:14,441 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 12:13:14,443 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 12:13:14,474 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,474 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,474 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,474 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,475 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,475 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,475 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,475 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,476 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,476 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,477 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,477 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,477 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,478 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,478 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,478 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,478 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,478 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,479 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,479 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,479 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,480 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,480 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,480 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,481 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,481 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,481 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,481 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,482 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,482 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,482 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,482 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,483 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,483 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,483 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,484 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,486 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,487 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,487 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,487 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,494 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,494 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,497 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,498 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,498 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,498 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:13:14,500 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 12:13:14,514 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-12 12:13:14,538 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 12:13:14,538 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 12:13:14,539 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 12:13:14,539 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 12:13:14,539 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 12:13:14,539 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 12:13:14,539 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 12:13:14,540 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 12:13:14,552 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2020-11-12 12:13:15,429 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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) [2020-11-12 12:13:16,506 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 1073ms [2020-11-12 12:13:16,549 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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) [2020-11-12 12:13:16,711 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 34634 states, 31697 states have (on average 1.2133955894879642) internal successors, (38461), 34633 states have internal predecessors, (38461), 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) [2020-11-12 12:13:16,773 INFO L276 IsEmpty]: Start isEmpty. Operand has 34634 states, 31697 states have (on average 1.2133955894879642) internal successors, (38461), 34633 states have internal predecessors, (38461), 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) [2020-11-12 12:13:16,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-12 12:13:16,806 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:13:16,807 INFO L494 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] [2020-11-12 12:13:16,807 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:13:16,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:13:16,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1557079206, now seen corresponding path program 1 times [2020-11-12 12:13:16,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:13:16,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012585047] [2020-11-12 12:13:16,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:13:17,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:13:17,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:13:17,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012585047] [2020-11-12 12:13:17,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:13:17,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:13:17,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202114637] [2020-11-12 12:13:17,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:13:17,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:13:17,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:13:17,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:13:17,394 INFO L87 Difference]: Start difference. First operand has 34634 states, 31697 states have (on average 1.2133955894879642) internal successors, (38461), 34633 states have internal predecessors, (38461), 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 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2020-11-12 12:13:17,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:13:17,656 INFO L93 Difference]: Finished difference Result 14109 states and 16579 transitions. [2020-11-12 12:13:17,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:13:17,658 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 42 [2020-11-12 12:13:17,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:13:17,706 INFO L225 Difference]: With dead ends: 14109 [2020-11-12 12:13:17,707 INFO L226 Difference]: Without dead ends: 4812 [2020-11-12 12:13:17,709 INFO L749 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 [2020-11-12 12:13:17,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4812 states. [2020-11-12 12:13:18,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4812 to 4812. [2020-11-12 12:13:18,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4812 states, 4567 states have (on average 1.3676373987300197) internal successors, (6246), 4811 states have internal predecessors, (6246), 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) [2020-11-12 12:13:18,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4812 states to 4812 states and 6246 transitions. [2020-11-12 12:13:18,042 INFO L78 Accepts]: Start accepts. Automaton has 4812 states and 6246 transitions. Word has length 42 [2020-11-12 12:13:18,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:13:18,043 INFO L481 AbstractCegarLoop]: Abstraction has 4812 states and 6246 transitions. [2020-11-12 12:13:18,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2020-11-12 12:13:18,048 INFO L276 IsEmpty]: Start isEmpty. Operand 4812 states and 6246 transitions. [2020-11-12 12:13:18,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-12 12:13:18,058 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:13:18,058 INFO L494 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] [2020-11-12 12:13:18,067 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 12:13:18,068 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:13:18,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:13:18,071 INFO L82 PathProgramCache]: Analyzing trace with hash 882658663, now seen corresponding path program 1 times [2020-11-12 12:13:18,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:13:18,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429535230] [2020-11-12 12:13:18,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:13:18,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:13:18,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:13:18,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429535230] [2020-11-12 12:13:18,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:13:18,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:13:18,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643976745] [2020-11-12 12:13:18,323 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:13:18,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:13:18,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:13:18,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:13:18,325 INFO L87 Difference]: Start difference. First operand 4812 states and 6246 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2020-11-12 12:13:18,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:13:18,476 INFO L93 Difference]: Finished difference Result 5266 states and 6998 transitions. [2020-11-12 12:13:18,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 12:13:18,476 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 44 [2020-11-12 12:13:18,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:13:18,495 INFO L225 Difference]: With dead ends: 5266 [2020-11-12 12:13:18,495 INFO L226 Difference]: Without dead ends: 3554 [2020-11-12 12:13:18,496 INFO L749 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 [2020-11-12 12:13:18,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3554 states. [2020-11-12 12:13:18,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3554 to 3554. [2020-11-12 12:13:18,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3554 states, 3379 states have (on average 1.3894643385617047) internal successors, (4695), 3553 states have internal predecessors, (4695), 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) [2020-11-12 12:13:18,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3554 states to 3554 states and 4695 transitions. [2020-11-12 12:13:18,657 INFO L78 Accepts]: Start accepts. Automaton has 3554 states and 4695 transitions. Word has length 44 [2020-11-12 12:13:18,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:13:18,658 INFO L481 AbstractCegarLoop]: Abstraction has 3554 states and 4695 transitions. [2020-11-12 12:13:18,659 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2020-11-12 12:13:18,659 INFO L276 IsEmpty]: Start isEmpty. Operand 3554 states and 4695 transitions. [2020-11-12 12:13:18,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-12 12:13:18,666 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:13:18,666 INFO L494 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] [2020-11-12 12:13:18,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 12:13:18,666 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:13:18,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:13:18,667 INFO L82 PathProgramCache]: Analyzing trace with hash -743169722, now seen corresponding path program 1 times [2020-11-12 12:13:18,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:13:18,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134566534] [2020-11-12 12:13:18,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:13:18,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:13:18,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:13:18,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134566534] [2020-11-12 12:13:18,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:13:18,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:13:18,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938280538] [2020-11-12 12:13:18,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:13:18,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:13:18,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:13:18,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:13:18,825 INFO L87 Difference]: Start difference. First operand 3554 states and 4695 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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) [2020-11-12 12:13:19,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:13:19,035 INFO L93 Difference]: Finished difference Result 5313 states and 6987 transitions. [2020-11-12 12:13:19,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:13:19,035 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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 46 [2020-11-12 12:13:19,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:13:19,049 INFO L225 Difference]: With dead ends: 5313 [2020-11-12 12:13:19,049 INFO L226 Difference]: Without dead ends: 2703 [2020-11-12 12:13:19,049 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 12:13:19,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2703 states. [2020-11-12 12:13:19,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2703 to 2703. [2020-11-12 12:13:19,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2703 states, 2563 states have (on average 1.2863831447522434) internal successors, (3297), 2702 states have internal predecessors, (3297), 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) [2020-11-12 12:13:19,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2703 states to 2703 states and 3297 transitions. [2020-11-12 12:13:19,123 INFO L78 Accepts]: Start accepts. Automaton has 2703 states and 3297 transitions. Word has length 46 [2020-11-12 12:13:19,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:13:19,124 INFO L481 AbstractCegarLoop]: Abstraction has 2703 states and 3297 transitions. [2020-11-12 12:13:19,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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) [2020-11-12 12:13:19,125 INFO L276 IsEmpty]: Start isEmpty. Operand 2703 states and 3297 transitions. [2020-11-12 12:13:19,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-12 12:13:19,130 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:13:19,130 INFO L494 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] [2020-11-12 12:13:19,130 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 12:13:19,130 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:13:19,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:13:19,131 INFO L82 PathProgramCache]: Analyzing trace with hash -176270830, now seen corresponding path program 1 times [2020-11-12 12:13:19,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:13:19,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302836544] [2020-11-12 12:13:19,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:13:19,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:13:19,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:13:19,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302836544] [2020-11-12 12:13:19,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:13:19,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:13:19,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833370030] [2020-11-12 12:13:19,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:13:19,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:13:19,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:13:19,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:13:19,302 INFO L87 Difference]: Start difference. First operand 2703 states and 3297 transitions. 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) [2020-11-12 12:13:19,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:13:19,438 INFO L93 Difference]: Finished difference Result 2839 states and 3321 transitions. [2020-11-12 12:13:19,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 12:13:19,438 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 [2020-11-12 12:13:19,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:13:19,449 INFO L225 Difference]: With dead ends: 2839 [2020-11-12 12:13:19,449 INFO L226 Difference]: Without dead ends: 2168 [2020-11-12 12:13:19,449 INFO L749 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 [2020-11-12 12:13:19,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2168 states. [2020-11-12 12:13:19,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2168 to 2168. [2020-11-12 12:13:19,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2168 states, 2056 states have (on average 1.2368677042801557) internal successors, (2543), 2167 states have internal predecessors, (2543), 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) [2020-11-12 12:13:19,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2168 states to 2168 states and 2543 transitions. [2020-11-12 12:13:19,500 INFO L78 Accepts]: Start accepts. Automaton has 2168 states and 2543 transitions. Word has length 47 [2020-11-12 12:13:19,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:13:19,501 INFO L481 AbstractCegarLoop]: Abstraction has 2168 states and 2543 transitions. [2020-11-12 12:13:19,501 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) [2020-11-12 12:13:19,501 INFO L276 IsEmpty]: Start isEmpty. Operand 2168 states and 2543 transitions. [2020-11-12 12:13:19,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-12 12:13:19,506 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:13:19,506 INFO L494 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] [2020-11-12 12:13:19,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 12:13:19,506 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:13:19,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:13:19,507 INFO L82 PathProgramCache]: Analyzing trace with hash 162268976, now seen corresponding path program 1 times [2020-11-12 12:13:19,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:13:19,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087822513] [2020-11-12 12:13:19,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:13:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:13:19,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:13:19,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087822513] [2020-11-12 12:13:19,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:13:19,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:13:19,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648437141] [2020-11-12 12:13:19,630 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:13:19,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:13:19,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:13:19,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:13:19,631 INFO L87 Difference]: Start difference. First operand 2168 states and 2543 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2020-11-12 12:13:19,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:13:19,796 INFO L93 Difference]: Finished difference Result 2883 states and 3423 transitions. [2020-11-12 12:13:19,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:13:19,796 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2020-11-12 12:13:19,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:13:19,802 INFO L225 Difference]: With dead ends: 2883 [2020-11-12 12:13:19,802 INFO L226 Difference]: Without dead ends: 1217 [2020-11-12 12:13:19,803 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 12:13:19,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2020-11-12 12:13:19,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 1217. [2020-11-12 12:13:19,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1217 states, 1153 states have (on average 1.2012142237640937) internal successors, (1385), 1216 states have internal predecessors, (1385), 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) [2020-11-12 12:13:19,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 1385 transitions. [2020-11-12 12:13:19,836 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 1385 transitions. Word has length 48 [2020-11-12 12:13:19,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:13:19,837 INFO L481 AbstractCegarLoop]: Abstraction has 1217 states and 1385 transitions. [2020-11-12 12:13:19,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2020-11-12 12:13:19,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 1385 transitions. [2020-11-12 12:13:19,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-12 12:13:19,840 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:13:19,840 INFO L494 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] [2020-11-12 12:13:19,841 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 12:13:19,841 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:13:19,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:13:19,841 INFO L82 PathProgramCache]: Analyzing trace with hash -706737579, now seen corresponding path program 1 times [2020-11-12 12:13:19,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:13:19,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916434027] [2020-11-12 12:13:19,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:13:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:13:19,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:13:19,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916434027] [2020-11-12 12:13:19,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:13:19,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:13:19,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595601788] [2020-11-12 12:13:19,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:13:19,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:13:19,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:13:19,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:13:19,983 INFO L87 Difference]: Start difference. First operand 1217 states and 1385 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 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) [2020-11-12 12:13:20,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:13:20,078 INFO L93 Difference]: Finished difference Result 961 states and 1129 transitions. [2020-11-12 12:13:20,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:13:20,079 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 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 [2020-11-12 12:13:20,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:13:20,079 INFO L225 Difference]: With dead ends: 961 [2020-11-12 12:13:20,079 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 12:13:20,080 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:13:20,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 12:13:20,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 12:13:20,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2020-11-12 12:13:20,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 12:13:20,081 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2020-11-12 12:13:20,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:13:20,081 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 12:13:20,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 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) [2020-11-12 12:13:20,081 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 12:13:20,082 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 12:13:20,082 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 12:13:20,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:13:20 BasicIcfg [2020-11-12 12:13:20,088 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 12:13:20,091 INFO L168 Benchmark]: Toolchain (without parser) took 7009.53 ms. Allocated memory was 302.0 MB in the beginning and 1.3 GB in the end (delta: 956.3 MB). Free memory was 276.5 MB in the beginning and 1.1 GB in the end (delta: -834.2 MB). Peak memory consumption was 124.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:13:20,091 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 302.0 MB. Free memory is still 272.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:13:20,092 INFO L168 Benchmark]: CACSL2BoogieTranslator took 701.80 ms. Allocated memory is still 302.0 MB. Free memory was 275.8 MB in the beginning and 274.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.0 GB. [2020-11-12 12:13:20,093 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.04 ms. Allocated memory is still 302.0 MB. Free memory was 274.3 MB in the beginning and 272.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:13:20,094 INFO L168 Benchmark]: Boogie Preprocessor took 28.26 ms. Allocated memory is still 302.0 MB. Free memory was 272.7 MB in the beginning and 271.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:13:20,095 INFO L168 Benchmark]: RCFGBuilder took 537.88 ms. Allocated memory is still 302.0 MB. Free memory was 271.1 MB in the beginning and 249.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2020-11-12 12:13:20,096 INFO L168 Benchmark]: TraceAbstraction took 5675.27 ms. Allocated memory was 302.0 MB in the beginning and 1.3 GB in the end (delta: 956.3 MB). Free memory was 248.6 MB in the beginning and 1.1 GB in the end (delta: -862.0 MB). Peak memory consumption was 95.2 MB. Max. memory is 16.0 GB. [2020-11-12 12:13:20,100 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 302.0 MB. Free memory is still 272.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 701.80 ms. Allocated memory is still 302.0 MB. Free memory was 275.8 MB in the beginning and 274.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 52.04 ms. Allocated memory is still 302.0 MB. Free memory was 274.3 MB in the beginning and 272.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.26 ms. Allocated memory is still 302.0 MB. Free memory was 272.7 MB in the beginning and 271.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 537.88 ms. Allocated memory is still 302.0 MB. Free memory was 271.1 MB in the beginning and 249.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5675.27 ms. Allocated memory was 302.0 MB in the beginning and 1.3 GB in the end (delta: 956.3 MB). Free memory was 248.6 MB in the beginning and 1.1 GB in the end (delta: -862.0 MB). Peak memory consumption was 95.2 MB. 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 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 416 SDtfs, 512 SDslu, 1518 SDs, 0 SdLazy, 152 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34634occurred 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: 0.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 278 NumberOfCodeBlocks, 278 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 272 ConstructedInterpolants, 0 QuantifiedInterpolants, 34076 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...