/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 09:59:48,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 09:59:48,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 09:59:48,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 09:59:48,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 09:59:48,432 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 09:59:48,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 09:59:48,434 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 09:59:48,436 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 09:59:48,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 09:59:48,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 09:59:48,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 09:59:48,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 09:59:48,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 09:59:48,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 09:59:48,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 09:59:48,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 09:59:48,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 09:59:48,448 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 09:59:48,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 09:59:48,453 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 09:59:48,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 09:59:48,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 09:59:48,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 09:59:48,461 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 09:59:48,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 09:59:48,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 09:59:48,466 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 09:59:48,471 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-Separate.epf [2022-01-18 09:59:48,497 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 09:59:48,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 09:59:48,498 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 09:59:48,498 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 09:59:48,498 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 09:59:48,499 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 09:59:48,499 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 09:59:48,499 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 09:59:48,499 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 09:59:48,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 09:59:48,500 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 09:59:48,500 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 09:59:48,500 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 09:59:48,500 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 09:59:48,500 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 09:59:48,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 09:59:48,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 09:59:48,500 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 09:59:48,500 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 09:59:48,500 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 09:59:48,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 09:59:48,501 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 09:59:48,501 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 09:59:48,501 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 09:59:48,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 09:59:48,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 09:59:48,502 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 09:59:48,502 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 09:59:48,502 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 09:59:48,502 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 09:59:48,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 09:59:48,502 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 09:59:48,502 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 09:59:48,502 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 09:59:48,502 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 09:59:48,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 09:59:48,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 09:59:48,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 09:59:48,685 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 09:59:48,686 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 09:59:48,687 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2022-01-18 09:59:48,724 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/464f5dd7b/e5d56f98686349c59f6489ee6dd2bd6e/FLAG235a7a81e [2022-01-18 09:59:49,149 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 09:59:49,149 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2022-01-18 09:59:49,165 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/464f5dd7b/e5d56f98686349c59f6489ee6dd2bd6e/FLAG235a7a81e [2022-01-18 09:59:49,175 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/464f5dd7b/e5d56f98686349c59f6489ee6dd2bd6e [2022-01-18 09:59:49,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 09:59:49,177 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 09:59:49,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 09:59:49,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 09:59:49,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 09:59:49,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 09:59:49" (1/1) ... [2022-01-18 09:59:49,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@400d6566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:59:49, skipping insertion in model container [2022-01-18 09:59:49,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 09:59:49" (1/1) ... [2022-01-18 09:59:49,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 09:59:49,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 09:59:49,364 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i[1107,1120] [2022-01-18 09:59:49,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 09:59:49,497 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 09:59:49,507 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i[1107,1120] [2022-01-18 09:59:49,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 09:59:49,562 INFO L208 MainTranslator]: Completed translation [2022-01-18 09:59:49,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:59:49 WrapperNode [2022-01-18 09:59:49,563 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 09:59:49,564 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 09:59:49,564 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 09:59:49,564 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 09:59:49,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:59:49" (1/1) ... [2022-01-18 09:59:49,590 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:59:49" (1/1) ... [2022-01-18 09:59:49,611 INFO L137 Inliner]: procedures = 165, calls = 24, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 97 [2022-01-18 09:59:49,611 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 09:59:49,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 09:59:49,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 09:59:49,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 09:59:49,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:59:49" (1/1) ... [2022-01-18 09:59:49,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:59:49" (1/1) ... [2022-01-18 09:59:49,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:59:49" (1/1) ... [2022-01-18 09:59:49,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:59:49" (1/1) ... [2022-01-18 09:59:49,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:59:49" (1/1) ... [2022-01-18 09:59:49,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:59:49" (1/1) ... [2022-01-18 09:59:49,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:59:49" (1/1) ... [2022-01-18 09:59:49,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 09:59:49,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 09:59:49,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 09:59:49,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 09:59:49,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:59:49" (1/1) ... [2022-01-18 09:59:49,647 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 09:59:49,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:59:49,666 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 09:59:49,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 09:59:49,708 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2022-01-18 09:59:49,708 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2022-01-18 09:59:49,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 09:59:49,709 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-18 09:59:49,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 09:59:49,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 09:59:49,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 09:59:49,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 09:59:49,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 09:59:49,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 09:59:49,710 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 09:59:49,813 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 09:59:49,814 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 09:59:49,966 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 09:59:49,974 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 09:59:49,974 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-18 09:59:49,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 09:59:49 BoogieIcfgContainer [2022-01-18 09:59:49,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 09:59:49,977 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 09:59:49,977 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 09:59:49,980 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 09:59:49,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 09:59:49" (1/3) ... [2022-01-18 09:59:49,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583f3b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 09:59:49, skipping insertion in model container [2022-01-18 09:59:49,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:59:49" (2/3) ... [2022-01-18 09:59:49,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583f3b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 09:59:49, skipping insertion in model container [2022-01-18 09:59:49,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 09:59:49" (3/3) ... [2022-01-18 09:59:49,982 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_69-refine-protected-loop-interval_true.i [2022-01-18 09:59:49,985 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 09:59:49,986 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 09:59:49,986 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-18 09:59:49,986 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 09:59:50,017 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,017 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,018 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,018 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,018 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,018 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,018 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,018 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,018 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,019 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,019 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,019 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,020 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,021 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,021 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,021 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,021 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,021 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,021 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,021 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,021 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,022 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,022 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,022 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,022 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,022 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,023 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,023 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,023 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,025 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,025 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,025 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,026 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,026 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,028 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,028 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,028 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,028 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,028 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,028 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,028 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,028 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,029 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,029 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,029 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,029 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,029 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,029 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,029 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,029 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,030 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,030 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,030 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,030 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,031 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,031 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,031 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,031 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,031 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,031 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,031 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,031 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,031 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,032 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,032 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,033 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,034 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,035 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,035 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,036 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,038 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,039 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,039 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,039 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,039 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,039 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,039 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,039 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,039 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_~got~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,040 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_pqueue_get_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,040 WARN L322 ript$VariableManager]: TermVariabe |workerThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:59:50,041 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 09:59:50,082 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 09:59:50,089 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 09:59:50,090 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-18 09:59:50,100 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 111 places, 117 transitions, 239 flow [2022-01-18 09:59:50,160 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1168 states, 1166 states have (on average 2.16295025728988) internal successors, (2522), 1167 states have internal predecessors, (2522), 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) [2022-01-18 09:59:50,163 INFO L276 IsEmpty]: Start isEmpty. Operand has 1168 states, 1166 states have (on average 2.16295025728988) internal successors, (2522), 1167 states have internal predecessors, (2522), 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) [2022-01-18 09:59:50,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-18 09:59:50,179 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:59:50,179 INFO L514 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] [2022-01-18 09:59:50,180 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 09:59:50,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:59:50,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1486853340, now seen corresponding path program 1 times [2022-01-18 09:59:50,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:59:50,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186648838] [2022-01-18 09:59:50,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:59:50,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:59:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:59:50,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:59:50,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:59:50,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186648838] [2022-01-18 09:59:50,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186648838] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:59:50,359 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:59:50,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 09:59:50,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790509337] [2022-01-18 09:59:50,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:59:50,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 09:59:50,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:59:50,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 09:59:50,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 09:59:50,382 INFO L87 Difference]: Start difference. First operand has 1168 states, 1166 states have (on average 2.16295025728988) internal successors, (2522), 1167 states have internal predecessors, (2522), 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 2 states, 2 states have (on average 26.0) internal successors, (52), 2 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) [2022-01-18 09:59:50,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:59:50,419 INFO L93 Difference]: Finished difference Result 1110 states and 2278 transitions. [2022-01-18 09:59:50,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 09:59:50,422 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 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 [2022-01-18 09:59:50,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:59:50,436 INFO L225 Difference]: With dead ends: 1110 [2022-01-18 09:59:50,436 INFO L226 Difference]: Without dead ends: 1110 [2022-01-18 09:59:50,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 09:59:50,440 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 09:59:50,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 105 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 09:59:50,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2022-01-18 09:59:50,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 1110. [2022-01-18 09:59:50,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 1108 states have (on average 2.055956678700361) internal successors, (2278), 1109 states have internal predecessors, (2278), 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) [2022-01-18 09:59:50,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 2278 transitions. [2022-01-18 09:59:50,507 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 2278 transitions. Word has length 52 [2022-01-18 09:59:50,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:59:50,507 INFO L470 AbstractCegarLoop]: Abstraction has 1110 states and 2278 transitions. [2022-01-18 09:59:50,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 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) [2022-01-18 09:59:50,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 2278 transitions. [2022-01-18 09:59:50,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-18 09:59:50,509 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:59:50,509 INFO L514 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] [2022-01-18 09:59:50,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 09:59:50,510 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 09:59:50,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:59:50,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1920610275, now seen corresponding path program 1 times [2022-01-18 09:59:50,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:59:50,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297871150] [2022-01-18 09:59:50,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:59:50,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:59:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:59:50,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:59:50,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:59:50,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297871150] [2022-01-18 09:59:50,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297871150] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:59:50,613 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:59:50,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 09:59:50,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184619609] [2022-01-18 09:59:50,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:59:50,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 09:59:50,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:59:50,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 09:59:50,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 09:59:50,615 INFO L87 Difference]: Start difference. First operand 1110 states and 2278 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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) [2022-01-18 09:59:50,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:59:50,658 INFO L93 Difference]: Finished difference Result 1322 states and 2696 transitions. [2022-01-18 09:59:50,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 09:59:50,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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 [2022-01-18 09:59:50,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:59:50,663 INFO L225 Difference]: With dead ends: 1322 [2022-01-18 09:59:50,663 INFO L226 Difference]: Without dead ends: 1322 [2022-01-18 09:59:50,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 09:59:50,664 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 44 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 09:59:50,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 163 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 09:59:50,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2022-01-18 09:59:50,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1304. [2022-01-18 09:59:50,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 1302 states have (on average 2.0514592933947773) internal successors, (2671), 1303 states have internal predecessors, (2671), 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) [2022-01-18 09:59:50,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 2671 transitions. [2022-01-18 09:59:50,692 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 2671 transitions. Word has length 52 [2022-01-18 09:59:50,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:59:50,692 INFO L470 AbstractCegarLoop]: Abstraction has 1304 states and 2671 transitions. [2022-01-18 09:59:50,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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) [2022-01-18 09:59:50,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 2671 transitions. [2022-01-18 09:59:50,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-18 09:59:50,696 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:59:50,697 INFO L514 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] [2022-01-18 09:59:50,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 09:59:50,697 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 09:59:50,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:59:50,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1003523105, now seen corresponding path program 1 times [2022-01-18 09:59:50,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:59:50,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586011956] [2022-01-18 09:59:50,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:59:50,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:59:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:59:50,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:59:50,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:59:50,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586011956] [2022-01-18 09:59:50,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586011956] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:59:50,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:59:50,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 09:59:50,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723787063] [2022-01-18 09:59:50,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:59:50,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 09:59:50,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:59:50,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 09:59:50,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 09:59:50,786 INFO L87 Difference]: Start difference. First operand 1304 states and 2671 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 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) [2022-01-18 09:59:50,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:59:50,901 INFO L93 Difference]: Finished difference Result 1984 states and 4096 transitions. [2022-01-18 09:59:50,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 09:59:50,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 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 [2022-01-18 09:59:50,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:59:50,907 INFO L225 Difference]: With dead ends: 1984 [2022-01-18 09:59:50,907 INFO L226 Difference]: Without dead ends: 1851 [2022-01-18 09:59:50,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-18 09:59:50,908 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 203 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:59:50,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 539 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:59:50,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1851 states. [2022-01-18 09:59:50,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1851 to 1257. [2022-01-18 09:59:50,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1255 states have (on average 2.047011952191235) internal successors, (2569), 1256 states have internal predecessors, (2569), 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) [2022-01-18 09:59:50,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2569 transitions. [2022-01-18 09:59:50,938 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2569 transitions. Word has length 52 [2022-01-18 09:59:50,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:59:50,938 INFO L470 AbstractCegarLoop]: Abstraction has 1257 states and 2569 transitions. [2022-01-18 09:59:50,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 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) [2022-01-18 09:59:50,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2569 transitions. [2022-01-18 09:59:50,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-18 09:59:50,940 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:59:50,940 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:59:50,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 09:59:50,940 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 09:59:50,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:59:50,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1335107149, now seen corresponding path program 1 times [2022-01-18 09:59:50,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:59:50,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644706392] [2022-01-18 09:59:50,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:59:50,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:59:50,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:59:50,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:59:50,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:59:50,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644706392] [2022-01-18 09:59:50,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644706392] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:59:50,977 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:59:50,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 09:59:50,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711175522] [2022-01-18 09:59:50,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:59:50,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 09:59:50,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:59:50,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 09:59:50,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 09:59:50,978 INFO L87 Difference]: Start difference. First operand 1257 states and 2569 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2022-01-18 09:59:51,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:59:51,020 INFO L93 Difference]: Finished difference Result 997 states and 1966 transitions. [2022-01-18 09:59:51,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 09:59:51,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 64 [2022-01-18 09:59:51,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:59:51,023 INFO L225 Difference]: With dead ends: 997 [2022-01-18 09:59:51,023 INFO L226 Difference]: Without dead ends: 933 [2022-01-18 09:59:51,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 09:59:51,024 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 55 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 09:59:51,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 197 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 09:59:51,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2022-01-18 09:59:51,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 919. [2022-01-18 09:59:51,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 915 states have (on average 1.980327868852459) internal successors, (1812), 918 states have internal predecessors, (1812), 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) [2022-01-18 09:59:51,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1812 transitions. [2022-01-18 09:59:51,061 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1812 transitions. Word has length 64 [2022-01-18 09:59:51,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:59:51,061 INFO L470 AbstractCegarLoop]: Abstraction has 919 states and 1812 transitions. [2022-01-18 09:59:51,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2022-01-18 09:59:51,061 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1812 transitions. [2022-01-18 09:59:51,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-18 09:59:51,062 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:59:51,062 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:59:51,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 09:59:51,062 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 09:59:51,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:59:51,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1121916305, now seen corresponding path program 1 times [2022-01-18 09:59:51,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:59:51,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367757059] [2022-01-18 09:59:51,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:59:51,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:59:51,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:59:51,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:59:51,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:59:51,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367757059] [2022-01-18 09:59:51,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367757059] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:59:51,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:59:51,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 09:59:51,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962839155] [2022-01-18 09:59:51,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:59:51,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 09:59:51,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:59:51,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 09:59:51,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 09:59:51,168 INFO L87 Difference]: Start difference. First operand 919 states and 1812 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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) [2022-01-18 09:59:51,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:59:51,251 INFO L93 Difference]: Finished difference Result 2105 states and 4263 transitions. [2022-01-18 09:59:51,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 09:59:51,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2022-01-18 09:59:51,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:59:51,259 INFO L225 Difference]: With dead ends: 2105 [2022-01-18 09:59:51,259 INFO L226 Difference]: Without dead ends: 2105 [2022-01-18 09:59:51,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-18 09:59:51,267 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 244 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 09:59:51,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 627 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 09:59:51,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2105 states. [2022-01-18 09:59:51,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2105 to 879. [2022-01-18 09:59:51,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 879 states, 877 states have (on average 1.9771949828962372) internal successors, (1734), 878 states have internal predecessors, (1734), 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) [2022-01-18 09:59:51,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1734 transitions. [2022-01-18 09:59:51,293 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1734 transitions. Word has length 66 [2022-01-18 09:59:51,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:59:51,295 INFO L470 AbstractCegarLoop]: Abstraction has 879 states and 1734 transitions. [2022-01-18 09:59:51,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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) [2022-01-18 09:59:51,295 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1734 transitions. [2022-01-18 09:59:51,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-18 09:59:51,296 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:59:51,296 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:59:51,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 09:59:51,297 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 09:59:51,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:59:51,298 INFO L85 PathProgramCache]: Analyzing trace with hash -204829135, now seen corresponding path program 1 times [2022-01-18 09:59:51,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:59:51,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360490790] [2022-01-18 09:59:51,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:59:51,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:59:51,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:59:51,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:59:51,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:59:51,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360490790] [2022-01-18 09:59:51,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360490790] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:59:51,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:59:51,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 09:59:51,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152734885] [2022-01-18 09:59:51,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:59:51,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 09:59:51,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:59:51,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 09:59:51,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 09:59:51,389 INFO L87 Difference]: Start difference. First operand 879 states and 1734 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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) [2022-01-18 09:59:51,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:59:51,430 INFO L93 Difference]: Finished difference Result 1220 states and 2399 transitions. [2022-01-18 09:59:51,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 09:59:51,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2022-01-18 09:59:51,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:59:51,434 INFO L225 Difference]: With dead ends: 1220 [2022-01-18 09:59:51,434 INFO L226 Difference]: Without dead ends: 1220 [2022-01-18 09:59:51,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 09:59:51,439 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 75 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 09:59:51,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 377 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 09:59:51,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2022-01-18 09:59:51,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 1172. [2022-01-18 09:59:51,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 1170 states have (on average 1.9615384615384615) internal successors, (2295), 1171 states have internal predecessors, (2295), 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) [2022-01-18 09:59:51,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 2295 transitions. [2022-01-18 09:59:51,461 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 2295 transitions. Word has length 66 [2022-01-18 09:59:51,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:59:51,465 INFO L470 AbstractCegarLoop]: Abstraction has 1172 states and 2295 transitions. [2022-01-18 09:59:51,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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) [2022-01-18 09:59:51,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 2295 transitions. [2022-01-18 09:59:51,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-18 09:59:51,468 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:59:51,468 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:59:51,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 09:59:51,469 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 09:59:51,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:59:51,469 INFO L85 PathProgramCache]: Analyzing trace with hash 919487059, now seen corresponding path program 1 times [2022-01-18 09:59:51,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:59:51,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314195880] [2022-01-18 09:59:51,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:59:51,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:59:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:59:51,538 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:59:51,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:59:51,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314195880] [2022-01-18 09:59:51,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314195880] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:59:51,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644717284] [2022-01-18 09:59:51,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:59:51,539 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:59:51,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:59:51,544 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:59:51,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 09:59:51,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:59:51,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-18 09:59:51,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:59:51,841 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:59:51,841 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 09:59:51,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644717284] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:59:51,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 09:59:51,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2022-01-18 09:59:51,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214583826] [2022-01-18 09:59:51,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:59:51,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 09:59:51,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:59:51,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 09:59:51,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-01-18 09:59:51,846 INFO L87 Difference]: Start difference. First operand 1172 states and 2295 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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) [2022-01-18 09:59:51,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:59:51,925 INFO L93 Difference]: Finished difference Result 1893 states and 3731 transitions. [2022-01-18 09:59:51,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 09:59:51,925 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 85 [2022-01-18 09:59:51,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:59:51,931 INFO L225 Difference]: With dead ends: 1893 [2022-01-18 09:59:51,931 INFO L226 Difference]: Without dead ends: 1893 [2022-01-18 09:59:51,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-01-18 09:59:51,933 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 148 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 09:59:51,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 513 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 09:59:51,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1893 states. [2022-01-18 09:59:51,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1893 to 1185. [2022-01-18 09:59:51,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 1183 states have (on average 1.9695688926458157) internal successors, (2330), 1184 states have internal predecessors, (2330), 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) [2022-01-18 09:59:51,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 2330 transitions. [2022-01-18 09:59:51,958 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 2330 transitions. Word has length 85 [2022-01-18 09:59:51,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:59:51,959 INFO L470 AbstractCegarLoop]: Abstraction has 1185 states and 2330 transitions. [2022-01-18 09:59:51,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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) [2022-01-18 09:59:51,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 2330 transitions. [2022-01-18 09:59:51,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 09:59:51,962 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:59:51,963 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:59:51,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-18 09:59:52,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:59:52,172 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 09:59:52,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:59:52,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1776839810, now seen corresponding path program 1 times [2022-01-18 09:59:52,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:59:52,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068088917] [2022-01-18 09:59:52,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:59:52,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:59:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:59:52,247 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:59:52,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:59:52,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068088917] [2022-01-18 09:59:52,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068088917] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:59:52,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:59:52,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 09:59:52,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229039139] [2022-01-18 09:59:52,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:59:52,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 09:59:52,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:59:52,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 09:59:52,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-18 09:59:52,249 INFO L87 Difference]: Start difference. First operand 1185 states and 2330 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 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) [2022-01-18 09:59:52,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:59:52,393 INFO L93 Difference]: Finished difference Result 2529 states and 5048 transitions. [2022-01-18 09:59:52,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 09:59:52,393 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 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 91 [2022-01-18 09:59:52,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:59:52,398 INFO L225 Difference]: With dead ends: 2529 [2022-01-18 09:59:52,398 INFO L226 Difference]: Without dead ends: 1871 [2022-01-18 09:59:52,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-01-18 09:59:52,399 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 600 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:59:52,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [600 Valid, 1026 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:59:52,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1871 states. [2022-01-18 09:59:52,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1871 to 1146. [2022-01-18 09:59:52,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 1144 states have (on average 1.9624125874125875) internal successors, (2245), 1145 states have internal predecessors, (2245), 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) [2022-01-18 09:59:52,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 2245 transitions. [2022-01-18 09:59:52,420 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 2245 transitions. Word has length 91 [2022-01-18 09:59:52,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:59:52,420 INFO L470 AbstractCegarLoop]: Abstraction has 1146 states and 2245 transitions. [2022-01-18 09:59:52,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 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) [2022-01-18 09:59:52,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 2245 transitions. [2022-01-18 09:59:52,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-18 09:59:52,422 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:59:52,422 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:59:52,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 09:59:52,422 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 09:59:52,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:59:52,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1619660264, now seen corresponding path program 1 times [2022-01-18 09:59:52,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:59:52,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730896782] [2022-01-18 09:59:52,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:59:52,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:59:52,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:59:52,463 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 09:59:52,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:59:52,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730896782] [2022-01-18 09:59:52,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730896782] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:59:52,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:59:52,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 09:59:52,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402346044] [2022-01-18 09:59:52,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:59:52,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 09:59:52,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:59:52,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 09:59:52,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-18 09:59:52,465 INFO L87 Difference]: Start difference. First operand 1146 states and 2245 transitions. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 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) [2022-01-18 09:59:52,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:59:52,503 INFO L93 Difference]: Finished difference Result 1070 states and 2084 transitions. [2022-01-18 09:59:52,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 09:59:52,503 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 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 110 [2022-01-18 09:59:52,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:59:52,504 INFO L225 Difference]: With dead ends: 1070 [2022-01-18 09:59:52,504 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 09:59:52,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-18 09:59:52,504 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 157 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 09:59:52,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 430 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 09:59:52,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 09:59:52,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 09:59:52,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:59:52,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 09:59:52,505 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 110 [2022-01-18 09:59:52,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:59:52,505 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 09:59:52,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 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) [2022-01-18 09:59:52,505 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 09:59:52,505 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 09:59:52,507 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 5 remaining) [2022-01-18 09:59:52,507 INFO L764 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-01-18 09:59:52,508 INFO L764 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2022-01-18 09:59:52,508 INFO L764 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-01-18 09:59:52,508 INFO L764 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-01-18 09:59:52,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 09:59:52,510 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:59:52,512 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 09:59:52,512 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 09:59:52,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 09:59:52 BasicIcfg [2022-01-18 09:59:52,514 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 09:59:52,514 INFO L158 Benchmark]: Toolchain (without parser) took 3336.38ms. Allocated memory was 396.4MB in the beginning and 488.6MB in the end (delta: 92.3MB). Free memory was 337.2MB in the beginning and 388.9MB in the end (delta: -51.7MB). Peak memory consumption was 41.2MB. Max. memory is 16.0GB. [2022-01-18 09:59:52,514 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 396.4MB. Free memory is still 354.9MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 09:59:52,514 INFO L158 Benchmark]: CACSL2BoogieTranslator took 384.66ms. Allocated memory was 396.4MB in the beginning and 488.6MB in the end (delta: 92.3MB). Free memory was 337.0MB in the beginning and 448.8MB in the end (delta: -111.9MB). Peak memory consumption was 7.0MB. Max. memory is 16.0GB. [2022-01-18 09:59:52,514 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.53ms. Allocated memory is still 488.6MB. Free memory was 448.8MB in the beginning and 446.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 09:59:52,515 INFO L158 Benchmark]: Boogie Preprocessor took 25.96ms. Allocated memory is still 488.6MB. Free memory was 446.7MB in the beginning and 445.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 09:59:52,515 INFO L158 Benchmark]: RCFGBuilder took 337.89ms. Allocated memory is still 488.6MB. Free memory was 445.7MB in the beginning and 430.0MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2022-01-18 09:59:52,515 INFO L158 Benchmark]: TraceAbstraction took 2536.51ms. Allocated memory is still 488.6MB. Free memory was 430.0MB in the beginning and 388.9MB in the end (delta: 41.1MB). Peak memory consumption was 43.2MB. Max. memory is 16.0GB. [2022-01-18 09:59:52,516 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 396.4MB. Free memory is still 354.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 384.66ms. Allocated memory was 396.4MB in the beginning and 488.6MB in the end (delta: 92.3MB). Free memory was 337.0MB in the beginning and 448.8MB in the end (delta: -111.9MB). Peak memory consumption was 7.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 47.53ms. Allocated memory is still 488.6MB. Free memory was 448.8MB in the beginning and 446.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 25.96ms. Allocated memory is still 488.6MB. Free memory was 446.7MB in the beginning and 445.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 337.89ms. Allocated memory is still 488.6MB. Free memory was 445.7MB in the beginning and 430.0MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 2536.51ms. Allocated memory is still 488.6MB. Free memory was 430.0MB in the beginning and 388.9MB in the end (delta: 41.1MB). Peak memory consumption was 43.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 151 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1526 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1526 mSDsluCounter, 3977 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2640 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 455 IncrementalHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 1347 mSDtfsCounter, 455 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 174 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1304occurred in iteration=2, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 3333 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 723 NumberOfCodeBlocks, 723 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 713 ConstructedInterpolants, 0 QuantifiedInterpolants, 1322 SizeOfPredicates, 4 NumberOfNonLiveVariables, 194 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 40/49 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-18 09:59:52,552 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...