/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/safe016_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-17 23:49:16,387 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-17 23:49:16,389 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-17 23:49:16,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-17 23:49:16,424 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-17 23:49:16,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-17 23:49:16,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-17 23:49:16,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-17 23:49:16,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-17 23:49:16,433 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-17 23:49:16,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-17 23:49:16,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-17 23:49:16,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-17 23:49:16,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-17 23:49:16,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-17 23:49:16,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-17 23:49:16,445 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-17 23:49:16,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-17 23:49:16,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-17 23:49:16,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-17 23:49:16,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-17 23:49:16,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-17 23:49:16,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-17 23:49:16,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-17 23:49:16,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-17 23:49:16,489 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-17 23:49:16,490 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-17 23:49:16,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-17 23:49:16,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-17 23:49:16,496 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-17 23:49:16,496 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-17 23:49:16,498 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-17 23:49:16,498 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-17 23:49:16,498 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-17 23:49:16,499 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-17 23:49:16,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-17 23:49:16,502 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 [2020-12-17 23:49:16,555 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-17 23:49:16,555 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-17 23:49:16,561 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-17 23:49:16,562 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-17 23:49:16,562 INFO L138 SettingsManager]: * Use SBE=true [2020-12-17 23:49:16,562 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-17 23:49:16,562 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-17 23:49:16,563 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-17 23:49:16,563 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-17 23:49:16,563 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-17 23:49:16,564 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-17 23:49:16,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-17 23:49:16,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-17 23:49:16,565 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-17 23:49:16,565 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-17 23:49:16,565 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-17 23:49:16,565 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-17 23:49:16,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-17 23:49:16,566 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-17 23:49:16,568 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-17 23:49:16,568 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-17 23:49:16,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 23:49:16,571 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-17 23:49:16,571 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-17 23:49:16,572 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-17 23:49:16,572 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-17 23:49:16,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-17 23:49:16,572 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-17 23:49:16,573 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-17 23:49:16,573 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2020-12-17 23:49:16,573 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-17 23:49:16,573 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-17 23:49:16,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-17 23:49:16,996 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-17 23:49:17,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-17 23:49:17,001 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-17 23:49:17,002 INFO L275 PluginConnector]: CDTParser initialized [2020-12-17 23:49:17,003 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2020-12-17 23:49:17,089 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb6e5fc47/34cdae2b93664f769d5688e1101c9a5c/FLAGdd356e01d [2020-12-17 23:49:17,856 INFO L306 CDTParser]: Found 1 translation units. [2020-12-17 23:49:17,857 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2020-12-17 23:49:17,877 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb6e5fc47/34cdae2b93664f769d5688e1101c9a5c/FLAGdd356e01d [2020-12-17 23:49:18,144 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb6e5fc47/34cdae2b93664f769d5688e1101c9a5c [2020-12-17 23:49:18,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-17 23:49:18,156 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-17 23:49:18,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-17 23:49:18,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-17 23:49:18,162 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-17 23:49:18,163 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:49:18" (1/1) ... [2020-12-17 23:49:18,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73db5d64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:49:18, skipping insertion in model container [2020-12-17 23:49:18,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:49:18" (1/1) ... [2020-12-17 23:49:18,175 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-17 23:49:18,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-17 23:49:18,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:49:18,676 INFO L203 MainTranslator]: Completed pre-run [2020-12-17 23:49:18,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:49:18,836 INFO L208 MainTranslator]: Completed translation [2020-12-17 23:49:18,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:49:18 WrapperNode [2020-12-17 23:49:18,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-17 23:49:18,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-17 23:49:18,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-17 23:49:18,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-17 23:49:18,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:49:18" (1/1) ... [2020-12-17 23:49:18,894 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:49:18" (1/1) ... [2020-12-17 23:49:18,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-17 23:49:18,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-17 23:49:18,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-17 23:49:18,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-17 23:49:18,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:49:18" (1/1) ... [2020-12-17 23:49:18,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:49:18" (1/1) ... [2020-12-17 23:49:18,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:49:18" (1/1) ... [2020-12-17 23:49:18,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:49:18" (1/1) ... [2020-12-17 23:49:19,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:49:18" (1/1) ... [2020-12-17 23:49:19,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:49:18" (1/1) ... [2020-12-17 23:49:19,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:49:18" (1/1) ... [2020-12-17 23:49:19,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-17 23:49:19,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-17 23:49:19,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-17 23:49:19,029 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-17 23:49:19,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:49:18" (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 [2020-12-17 23:49:19,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-17 23:49:19,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-17 23:49:19,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-17 23:49:19,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-17 23:49:19,142 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-17 23:49:19,144 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-17 23:49:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-17 23:49:19,145 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-17 23:49:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-17 23:49:19,146 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-17 23:49:19,146 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-12-17 23:49:19,146 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-12-17 23:49:19,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-17 23:49:19,147 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-17 23:49:19,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-17 23:49:19,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-17 23:49:19,149 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-17 23:49:19,715 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-17 23:49:19,716 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-17 23:49:19,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:49:19 BoogieIcfgContainer [2020-12-17 23:49:19,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-17 23:49:19,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-17 23:49:19,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-17 23:49:19,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-17 23:49:19,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 11:49:18" (1/3) ... [2020-12-17 23:49:19,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38068231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:49:19, skipping insertion in model container [2020-12-17 23:49:19,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:49:18" (2/3) ... [2020-12-17 23:49:19,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38068231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:49:19, skipping insertion in model container [2020-12-17 23:49:19,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:49:19" (3/3) ... [2020-12-17 23:49:19,732 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_pso.opt.i [2020-12-17 23:49:19,750 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-17 23:49:19,750 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-17 23:49:19,755 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-17 23:49:19,756 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-17 23:49:19,805 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,806 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,806 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,806 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,807 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,807 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,807 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,807 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,808 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,808 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,814 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,814 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,816 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,816 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,817 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,817 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,817 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,817 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,818 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,818 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,819 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,819 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,820 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,821 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,822 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,823 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,823 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,823 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,824 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,824 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,824 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,825 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,826 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,826 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,826 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,827 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,828 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,828 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,830 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,830 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,831 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,831 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,831 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,831 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,831 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,831 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,832 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,832 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,836 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,837 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,837 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,837 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,842 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,843 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,843 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,843 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,847 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,847 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,847 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,847 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,850 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,851 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,851 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,851 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:19,854 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-17 23:49:19,869 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-17 23:49:19,894 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-17 23:49:19,894 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-17 23:49:19,895 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-17 23:49:19,895 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-17 23:49:19,895 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-17 23:49:19,895 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-17 23:49:19,895 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-17 23:49:19,896 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-17 23:49:19,909 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 99 places, 89 transitions, 198 flow [2020-12-17 23:49:30,113 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 54311 states, 54309 states have (on average 4.420317074518036) internal successors, (240063), 54310 states have internal predecessors, (240063), 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) [2020-12-17 23:49:30,545 INFO L276 IsEmpty]: Start isEmpty. Operand has 54311 states, 54309 states have (on average 4.420317074518036) internal successors, (240063), 54310 states have internal predecessors, (240063), 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) [2020-12-17 23:49:30,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-17 23:49:30,726 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:49:30,728 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] [2020-12-17 23:49:30,728 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:49:30,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:49:30,736 INFO L82 PathProgramCache]: Analyzing trace with hash -864945227, now seen corresponding path program 1 times [2020-12-17 23:49:30,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:49:30,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33519245] [2020-12-17 23:49:30,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:49:30,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:49:31,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:49:31,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33519245] [2020-12-17 23:49:31,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:49:31,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:49:31,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137191160] [2020-12-17 23:49:31,342 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:49:31,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:49:31,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:49:31,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:49:31,454 INFO L87 Difference]: Start difference. First operand has 54311 states, 54309 states have (on average 4.420317074518036) internal successors, (240063), 54310 states have internal predecessors, (240063), 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 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2020-12-17 23:49:33,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:49:33,554 INFO L93 Difference]: Finished difference Result 73967 states and 317811 transitions. [2020-12-17 23:49:33,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:49:33,556 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 45 [2020-12-17 23:49:33,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:49:33,559 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:49:33,560 INFO L78 Accepts]: Start accepts. Automaton has 73967 states and 317811 transitions. Word has length 45 [2020-12-17 23:49:33,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:49:33,562 INFO L481 AbstractCegarLoop]: Abstraction has 73967 states and 317811 transitions. [2020-12-17 23:49:33,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2020-12-17 23:49:33,563 INFO L276 IsEmpty]: Start isEmpty. Operand 73967 states and 317811 transitions. [2020-12-17 23:49:33,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-17 23:49:33,639 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:49:33,639 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] [2020-12-17 23:49:33,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-17 23:49:33,640 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:49:33,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:49:33,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1139015446, now seen corresponding path program 1 times [2020-12-17 23:49:33,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:49:33,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684436821] [2020-12-17 23:49:33,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:49:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:49:33,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:49:33,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684436821] [2020-12-17 23:49:33,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:49:33,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:49:33,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514570553] [2020-12-17 23:49:33,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:49:33,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:49:33,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:49:33,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:49:33,903 INFO L87 Difference]: Start difference. First operand 73967 states and 317811 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) [2020-12-17 23:49:35,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:49:35,594 INFO L93 Difference]: Finished difference Result 109679 states and 468735 transitions. [2020-12-17 23:49:35,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:49:35,596 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 [2020-12-17 23:49:35,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:49:35,597 INFO L763 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 [2020-12-17 23:49:35,597 INFO L78 Accepts]: Start accepts. Automaton has 109679 states and 468735 transitions. Word has length 47 [2020-12-17 23:49:35,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:49:35,598 INFO L481 AbstractCegarLoop]: Abstraction has 109679 states and 468735 transitions. [2020-12-17 23:49:35,598 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) [2020-12-17 23:49:35,599 INFO L276 IsEmpty]: Start isEmpty. Operand 109679 states and 468735 transitions. [2020-12-17 23:49:35,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-17 23:49:35,700 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:49:35,713 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] [2020-12-17 23:49:35,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-17 23:49:35,714 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:49:35,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:49:35,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1367050025, now seen corresponding path program 1 times [2020-12-17 23:49:35,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:49:35,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296519504] [2020-12-17 23:49:35,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:49:35,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:49:35,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:49:35,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296519504] [2020-12-17 23:49:35,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:49:35,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:49:35,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702381330] [2020-12-17 23:49:35,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:49:35,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:49:35,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:49:35,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:49:35,935 INFO L87 Difference]: Start difference. First operand 109679 states and 468735 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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) [2020-12-17 23:49:36,206 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-12-17 23:49:38,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:49:38,431 INFO L93 Difference]: Finished difference Result 179279 states and 761719 transitions. [2020-12-17 23:49:38,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:49:38,431 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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 [2020-12-17 23:49:38,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:49:38,432 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:49:38,432 INFO L78 Accepts]: Start accepts. Automaton has 179279 states and 761719 transitions. Word has length 49 [2020-12-17 23:49:38,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:49:38,433 INFO L481 AbstractCegarLoop]: Abstraction has 179279 states and 761719 transitions. [2020-12-17 23:49:38,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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) [2020-12-17 23:49:38,434 INFO L276 IsEmpty]: Start isEmpty. Operand 179279 states and 761719 transitions. [2020-12-17 23:49:38,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-17 23:49:38,612 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:49:38,613 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] [2020-12-17 23:49:38,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-17 23:49:38,613 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:49:38,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:49:38,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1400237191, now seen corresponding path program 1 times [2020-12-17 23:49:38,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:49:38,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481196549] [2020-12-17 23:49:38,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:49:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:49:38,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:49:38,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481196549] [2020-12-17 23:49:38,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:49:38,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:49:38,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071371062] [2020-12-17 23:49:38,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:49:38,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:49:38,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:49:38,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:49:38,794 INFO L87 Difference]: Start difference. First operand 179279 states and 761719 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2020-12-17 23:49:42,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:49:42,244 INFO L93 Difference]: Finished difference Result 250607 states and 1060751 transitions. [2020-12-17 23:49:42,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:49:42,245 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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 50 [2020-12-17 23:49:42,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:49:42,246 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:49:42,247 INFO L78 Accepts]: Start accepts. Automaton has 250607 states and 1060751 transitions. Word has length 50 [2020-12-17 23:49:42,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:49:42,247 INFO L481 AbstractCegarLoop]: Abstraction has 250607 states and 1060751 transitions. [2020-12-17 23:49:42,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2020-12-17 23:49:42,247 INFO L276 IsEmpty]: Start isEmpty. Operand 250607 states and 1060751 transitions. [2020-12-17 23:49:42,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-17 23:49:42,416 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:49:42,417 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] [2020-12-17 23:49:42,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-17 23:49:42,417 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:49:42,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:49:42,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1369609187, now seen corresponding path program 2 times [2020-12-17 23:49:42,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:49:42,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290058996] [2020-12-17 23:49:42,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:49:42,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:49:42,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:49:42,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290058996] [2020-12-17 23:49:42,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:49:42,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:49:42,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710588168] [2020-12-17 23:49:42,629 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:49:42,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:49:42,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:49:42,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:49:42,630 INFO L87 Difference]: Start difference. First operand 250607 states and 1060751 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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) [2020-12-17 23:49:47,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:49:47,315 INFO L93 Difference]: Finished difference Result 393071 states and 1653775 transitions. [2020-12-17 23:49:47,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:49:47,315 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 50 [2020-12-17 23:49:47,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:49:47,316 INFO L763 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 [2020-12-17 23:49:47,316 INFO L78 Accepts]: Start accepts. Automaton has 393071 states and 1653775 transitions. Word has length 50 [2020-12-17 23:49:47,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:49:47,317 INFO L481 AbstractCegarLoop]: Abstraction has 393071 states and 1653775 transitions. [2020-12-17 23:49:47,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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) [2020-12-17 23:49:47,317 INFO L276 IsEmpty]: Start isEmpty. Operand 393071 states and 1653775 transitions. [2020-12-17 23:49:47,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-17 23:49:47,600 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:49:47,600 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] [2020-12-17 23:49:47,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-17 23:49:47,601 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:49:47,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:49:47,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1165374980, now seen corresponding path program 1 times [2020-12-17 23:49:47,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:49:47,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012150404] [2020-12-17 23:49:47,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:49:47,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:49:48,539 WARN L193 SmtUtils]: Spent 861.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2020-12-17 23:49:48,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:49:48,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012150404] [2020-12-17 23:49:48,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:49:48,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:49:48,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784276668] [2020-12-17 23:49:48,584 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:49:48,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:49:48,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:49:48,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:49:48,585 INFO L87 Difference]: Start difference. First operand 393071 states and 1653775 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) [2020-12-17 23:49:56,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:49:56,473 INFO L93 Difference]: Finished difference Result 642287 states and 2667983 transitions. [2020-12-17 23:49:56,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:49:56,473 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 [2020-12-17 23:49:56,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:49:56,474 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:49:56,475 INFO L78 Accepts]: Start accepts. Automaton has 642287 states and 2667983 transitions. Word has length 51 [2020-12-17 23:49:56,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:49:56,475 INFO L481 AbstractCegarLoop]: Abstraction has 642287 states and 2667983 transitions. [2020-12-17 23:49:56,475 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) [2020-12-17 23:49:56,476 INFO L276 IsEmpty]: Start isEmpty. Operand 642287 states and 2667983 transitions. [2020-12-17 23:49:56,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-17 23:49:56,774 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:49:56,774 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] [2020-12-17 23:49:56,775 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-17 23:49:56,775 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:49:56,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:49:56,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1153343617, now seen corresponding path program 1 times [2020-12-17 23:49:56,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:49:56,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514067383] [2020-12-17 23:49:56,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:49:56,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:49:56,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:49:56,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514067383] [2020-12-17 23:49:56,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:49:56,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:49:56,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975367080] [2020-12-17 23:49:56,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:49:56,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:49:56,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:49:56,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:49:56,932 INFO L87 Difference]: Start difference. First operand 642287 states and 2667983 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2020-12-17 23:50:11,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:50:11,454 INFO L93 Difference]: Finished difference Result 1211759 states and 4955951 transitions. [2020-12-17 23:50:11,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-17 23:50:11,455 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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 52 [2020-12-17 23:50:11,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:50:11,456 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-12-17 23:50:11,456 INFO L78 Accepts]: Start accepts. Automaton has 1211759 states and 4955951 transitions. Word has length 52 [2020-12-17 23:50:11,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:50:11,456 INFO L481 AbstractCegarLoop]: Abstraction has 1211759 states and 4955951 transitions. [2020-12-17 23:50:11,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2020-12-17 23:50:11,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1211759 states and 4955951 transitions. [2020-12-17 23:50:12,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-17 23:50:12,041 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:50:12,042 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] [2020-12-17 23:50:12,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-17 23:50:12,043 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:50:12,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:50:12,045 INFO L82 PathProgramCache]: Analyzing trace with hash -613264223, now seen corresponding path program 1 times [2020-12-17 23:50:12,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:50:12,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321627226] [2020-12-17 23:50:12,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:50:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:50:12,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:50:12,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321627226] [2020-12-17 23:50:12,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:50:12,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:50:12,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096439094] [2020-12-17 23:50:12,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:50:12,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:50:12,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:50:12,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:50:12,233 INFO L87 Difference]: Start difference. First operand 1211759 states and 4955951 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 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) [2020-12-17 23:50:24,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:50:24,547 INFO L93 Difference]: Finished difference Result 843003 states and 3396331 transitions. [2020-12-17 23:50:24,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-17 23:50:24,549 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 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 [2020-12-17 23:50:24,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:50:24,550 INFO L763 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 [2020-12-17 23:50:24,550 INFO L78 Accepts]: Start accepts. Automaton has 843003 states and 3396331 transitions. Word has length 53 [2020-12-17 23:50:24,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:50:24,550 INFO L481 AbstractCegarLoop]: Abstraction has 843003 states and 3396331 transitions. [2020-12-17 23:50:24,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 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) [2020-12-17 23:50:24,550 INFO L276 IsEmpty]: Start isEmpty. Operand 843003 states and 3396331 transitions. [2020-12-17 23:50:25,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-17 23:50:25,578 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:50:25,578 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] [2020-12-17 23:50:25,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-17 23:50:25,579 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:50:25,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:50:25,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1217531091, now seen corresponding path program 1 times [2020-12-17 23:50:25,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:50:25,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786734337] [2020-12-17 23:50:25,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:50:25,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:50:25,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:50:25,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786734337] [2020-12-17 23:50:25,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:50:25,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:50:25,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450916739] [2020-12-17 23:50:25,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:50:25,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:50:25,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:50:25,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:50:25,781 INFO L87 Difference]: Start difference. First operand 843003 states and 3396331 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2020-12-17 23:50:34,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:50:34,110 INFO L93 Difference]: Finished difference Result 462183 states and 1823621 transitions. [2020-12-17 23:50:34,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:50:34,113 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2020-12-17 23:50:34,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:50:34,114 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-12-17 23:50:34,114 INFO L78 Accepts]: Start accepts. Automaton has 462183 states and 1823621 transitions. Word has length 54 [2020-12-17 23:50:34,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:50:34,116 INFO L481 AbstractCegarLoop]: Abstraction has 462183 states and 1823621 transitions. [2020-12-17 23:50:34,116 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2020-12-17 23:50:34,116 INFO L276 IsEmpty]: Start isEmpty. Operand 462183 states and 1823621 transitions. [2020-12-17 23:50:34,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-17 23:50:34,745 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:50:34,746 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] [2020-12-17 23:50:34,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-17 23:50:34,746 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:50:34,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:50:34,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1586012644, now seen corresponding path program 1 times [2020-12-17 23:50:34,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:50:34,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766788880] [2020-12-17 23:50:34,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:50:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:50:35,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:50:35,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766788880] [2020-12-17 23:50:35,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:50:35,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-17 23:50:35,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930503485] [2020-12-17 23:50:35,062 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-17 23:50:35,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:50:35,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-17 23:50:35,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-17 23:50:35,063 INFO L87 Difference]: Start difference. First operand 462183 states and 1823621 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 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) [2020-12-17 23:50:38,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:50:38,527 INFO L93 Difference]: Finished difference Result 238119 states and 925901 transitions. [2020-12-17 23:50:38,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-17 23:50:38,528 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 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 [2020-12-17 23:50:38,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:50:38,529 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2020-12-17 23:50:38,529 INFO L78 Accepts]: Start accepts. Automaton has 238119 states and 925901 transitions. Word has length 55 [2020-12-17 23:50:38,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:50:38,529 INFO L481 AbstractCegarLoop]: Abstraction has 238119 states and 925901 transitions. [2020-12-17 23:50:38,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 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) [2020-12-17 23:50:38,530 INFO L276 IsEmpty]: Start isEmpty. Operand 238119 states and 925901 transitions. [2020-12-17 23:50:40,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-17 23:50:40,497 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:50:40,498 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] [2020-12-17 23:50:40,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-17 23:50:40,498 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:50:40,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:50:40,499 INFO L82 PathProgramCache]: Analyzing trace with hash -237436163, now seen corresponding path program 1 times [2020-12-17 23:50:40,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:50:40,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991341071] [2020-12-17 23:50:40,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:50:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:50:41,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:50:41,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991341071] [2020-12-17 23:50:41,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:50:41,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-17 23:50:41,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792743187] [2020-12-17 23:50:41,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-17 23:50:41,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:50:41,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-17 23:50:41,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-17 23:50:41,067 INFO L87 Difference]: Start difference. First operand 238119 states and 925901 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 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) [2020-12-17 23:50:41,221 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-12-17 23:50:42,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:50:42,810 INFO L93 Difference]: Finished difference Result 156093 states and 608543 transitions. [2020-12-17 23:50:42,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-17 23:50:42,810 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 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 [2020-12-17 23:50:42,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:50:42,811 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2020-12-17 23:50:42,811 INFO L78 Accepts]: Start accepts. Automaton has 156093 states and 608543 transitions. Word has length 57 [2020-12-17 23:50:42,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:50:42,812 INFO L481 AbstractCegarLoop]: Abstraction has 156093 states and 608543 transitions. [2020-12-17 23:50:42,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 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) [2020-12-17 23:50:42,812 INFO L276 IsEmpty]: Start isEmpty. Operand 156093 states and 608543 transitions. [2020-12-17 23:50:44,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-12-17 23:50:44,197 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:50:44,197 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] [2020-12-17 23:50:44,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-17 23:50:44,197 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:50:44,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:50:44,201 INFO L82 PathProgramCache]: Analyzing trace with hash 665182430, now seen corresponding path program 1 times [2020-12-17 23:50:44,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:50:44,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77382038] [2020-12-17 23:50:44,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:50:44,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:50:44,532 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2020-12-17 23:50:44,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:50:44,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77382038] [2020-12-17 23:50:44,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:50:44,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:50:44,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742974985] [2020-12-17 23:50:44,572 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:50:44,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:50:44,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:50:44,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:50:44,573 INFO L87 Difference]: Start difference. First operand 156093 states and 608543 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 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) [2020-12-17 23:50:47,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:50:47,579 INFO L93 Difference]: Finished difference Result 256576 states and 995952 transitions. [2020-12-17 23:50:47,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-17 23:50:47,580 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 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 [2020-12-17 23:50:47,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:50:47,581 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:50:47,581 INFO L78 Accepts]: Start accepts. Automaton has 256576 states and 995952 transitions. Word has length 59 [2020-12-17 23:50:47,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:50:47,581 INFO L481 AbstractCegarLoop]: Abstraction has 256576 states and 995952 transitions. [2020-12-17 23:50:47,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 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) [2020-12-17 23:50:47,582 INFO L276 IsEmpty]: Start isEmpty. Operand 256576 states and 995952 transitions. [2020-12-17 23:50:48,405 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-17 23:50:48,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-17 23:50:48,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 11:50:48 BasicIcfg [2020-12-17 23:50:48,429 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-17 23:50:48,434 INFO L168 Benchmark]: Toolchain (without parser) took 90274.04 ms. Allocated memory was 308.3 MB in the beginning and 15.8 GB in the end (delta: 15.5 GB). Free memory was 283.6 MB in the beginning and 4.1 GB in the end (delta: -3.8 GB). Peak memory consumption was 11.7 GB. Max. memory is 16.0 GB. [2020-12-17 23:50:48,435 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 308.3 MB. Free memory is still 278.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:50:48,436 INFO L168 Benchmark]: CACSL2BoogieTranslator took 678.87 ms. Allocated memory is still 308.3 MB. Free memory was 283.4 MB in the beginning and 252.4 MB in the end (delta: 31.0 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2020-12-17 23:50:48,436 INFO L168 Benchmark]: Boogie Procedure Inliner took 128.87 ms. Allocated memory is still 308.3 MB. Free memory was 252.2 MB in the beginning and 289.6 MB in the end (delta: -37.4 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.0 GB. [2020-12-17 23:50:48,438 INFO L168 Benchmark]: Boogie Preprocessor took 59.61 ms. Allocated memory is still 308.3 MB. Free memory was 289.6 MB in the beginning and 288.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:50:48,439 INFO L168 Benchmark]: RCFGBuilder took 691.95 ms. Allocated memory is still 308.3 MB. Free memory was 288.6 MB in the beginning and 264.5 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2020-12-17 23:50:48,442 INFO L168 Benchmark]: TraceAbstraction took 88704.46 ms. Allocated memory was 308.3 MB in the beginning and 15.8 GB in the end (delta: 15.5 GB). Free memory was 264.5 MB in the beginning and 4.1 GB in the end (delta: -3.8 GB). Peak memory consumption was 11.7 GB. Max. memory is 16.0 GB. [2020-12-17 23:50:48,447 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 308.3 MB. Free memory is still 278.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 678.87 ms. Allocated memory is still 308.3 MB. Free memory was 283.4 MB in the beginning and 252.4 MB in the end (delta: 31.0 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 128.87 ms. Allocated memory is still 308.3 MB. Free memory was 252.2 MB in the beginning and 289.6 MB in the end (delta: -37.4 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 59.61 ms. Allocated memory is still 308.3 MB. Free memory was 289.6 MB in the beginning and 288.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 691.95 ms. Allocated memory is still 308.3 MB. Free memory was 288.6 MB in the beginning and 264.5 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 88704.46 ms. Allocated memory was 308.3 MB in the beginning and 15.8 GB in the end (delta: 15.5 GB). Free memory was 264.5 MB in the beginning and 4.1 GB in the end (delta: -3.8 GB). Peak memory consumption was 11.7 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, 87 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 88.5s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 65.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.2s, HoareTripleCheckerStatistics: 1729 SDtfs, 3369 SDslu, 6059 SDs, 0 SdLazy, 650 SolverSat, 171 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 186 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1211759occurred in iteration=7, 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 622 NumberOfCodeBlocks, 622 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 610 ConstructedInterpolants, 0 QuantifiedInterpolants, 83442 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...