/usr/bin/java -Xmx8000000000 -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-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-09 12:50:09,714 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 12:50:09,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 12:50:09,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-09 12:50:09,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-09 12:50:09,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-09 12:50:09,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-09 12:50:09,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-09 12:50:09,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-09 12:50:09,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-09 12:50:09,791 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-09 12:50:09,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-09 12:50:09,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-09 12:50:09,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-09 12:50:09,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-09 12:50:09,797 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-09 12:50:09,797 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-09 12:50:09,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-09 12:50:09,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-09 12:50:09,803 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-09 12:50:09,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-09 12:50:09,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-09 12:50:09,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-09 12:50:09,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-09 12:50:09,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-09 12:50:09,809 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-09 12:50:09,809 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-09 12:50:09,810 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-09 12:50:09,810 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-09 12:50:09,811 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-09 12:50:09,811 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-09 12:50:09,811 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-09 12:50:09,812 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-09 12:50:09,813 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-09 12:50:09,814 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-09 12:50:09,814 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-09 12:50:09,814 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-09 12:50:09,814 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-09 12:50:09,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-09 12:50:09,815 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-09 12:50:09,815 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-09 12:50:09,816 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-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf [2022-02-09 12:50:09,841 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 12:50:09,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 12:50:09,842 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 12:50:09,842 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 12:50:09,843 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 12:50:09,843 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 12:50:09,843 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 12:50:09,843 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 12:50:09,843 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 12:50:09,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 12:50:09,844 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 12:50:09,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 12:50:09,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 12:50:09,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 12:50:09,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 12:50:09,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 12:50:09,844 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 12:50:09,845 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 12:50:09,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 12:50:09,845 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 12:50:09,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 12:50:09,845 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 12:50:09,845 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 12:50:09,845 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 12:50:09,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 12:50:09,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 12:50:09,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 12:50:09,847 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-09 12:50:09,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 12:50:09,847 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 12:50:09,847 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 12:50:09,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 12:50:09,847 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 12:50:09,847 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-09 12:50:09,847 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 12:50:09,847 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-02-09 12:50:09,847 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-02-09 12:50:09,847 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 12:50:10,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 12:50:10,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 12:50:10,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 12:50:10,062 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-09 12:50:10,074 INFO L275 PluginConnector]: CDTParser initialized [2022-02-09 12:50:10,075 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c [2022-02-09 12:50:10,118 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b58036ffd/d145a5a792cf4cb2a5ff66697af70fe5/FLAG1263b26b7 [2022-02-09 12:50:10,464 INFO L306 CDTParser]: Found 1 translation units. [2022-02-09 12:50:10,464 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c [2022-02-09 12:50:10,469 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b58036ffd/d145a5a792cf4cb2a5ff66697af70fe5/FLAG1263b26b7 [2022-02-09 12:50:10,489 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b58036ffd/d145a5a792cf4cb2a5ff66697af70fe5 [2022-02-09 12:50:10,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 12:50:10,492 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-09 12:50:10,493 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-09 12:50:10,493 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-09 12:50:10,496 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-09 12:50:10,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 12:50:10" (1/1) ... [2022-02-09 12:50:10,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d3591c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:50:10, skipping insertion in model container [2022-02-09 12:50:10,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 12:50:10" (1/1) ... [2022-02-09 12:50:10,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-09 12:50:10,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-09 12:50:10,653 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c[2098,2111] [2022-02-09 12:50:10,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 12:50:10,660 INFO L203 MainTranslator]: Completed pre-run [2022-02-09 12:50:10,673 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c[2098,2111] [2022-02-09 12:50:10,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 12:50:10,685 INFO L208 MainTranslator]: Completed translation [2022-02-09 12:50:10,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:50:10 WrapperNode [2022-02-09 12:50:10,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-09 12:50:10,687 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 12:50:10,687 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 12:50:10,687 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 12:50:10,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:50:10" (1/1) ... [2022-02-09 12:50:10,697 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:50:10" (1/1) ... [2022-02-09 12:50:10,708 INFO L137 Inliner]: procedures = 21, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2022-02-09 12:50:10,709 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 12:50:10,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 12:50:10,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 12:50:10,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 12:50:10,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:50:10" (1/1) ... [2022-02-09 12:50:10,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:50:10" (1/1) ... [2022-02-09 12:50:10,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:50:10" (1/1) ... [2022-02-09 12:50:10,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:50:10" (1/1) ... [2022-02-09 12:50:10,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:50:10" (1/1) ... [2022-02-09 12:50:10,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:50:10" (1/1) ... [2022-02-09 12:50:10,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:50:10" (1/1) ... [2022-02-09 12:50:10,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 12:50:10,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 12:50:10,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 12:50:10,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 12:50:10,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:50:10" (1/1) ... [2022-02-09 12:50:10,734 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 12:50:10,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 12:50:10,785 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) [2022-02-09 12:50:10,804 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 [2022-02-09 12:50:10,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-09 12:50:10,819 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-09 12:50:10,819 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-09 12:50:10,819 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-09 12:50:10,820 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-09 12:50:10,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-09 12:50:10,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-09 12:50:10,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-09 12:50:10,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-09 12:50:10,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-09 12:50:10,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 12:50:10,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 12:50:10,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-09 12:50:10,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-09 12:50:10,823 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-09 12:50:10,870 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 12:50:10,872 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 12:50:11,018 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 12:50:11,069 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 12:50:11,069 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-09 12:50:11,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 12:50:11 BoogieIcfgContainer [2022-02-09 12:50:11,071 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 12:50:11,072 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 12:50:11,072 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 12:50:11,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 12:50:11,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.02 12:50:10" (1/3) ... [2022-02-09 12:50:11,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ecb8a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 12:50:11, skipping insertion in model container [2022-02-09 12:50:11,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:50:10" (2/3) ... [2022-02-09 12:50:11,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ecb8a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 12:50:11, skipping insertion in model container [2022-02-09 12:50:11,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 12:50:11" (3/3) ... [2022-02-09 12:50:11,076 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-nonblocking-cntr-alt.wvr.c [2022-02-09 12:50:11,079 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 12:50:11,079 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 12:50:11,080 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 12:50:11,080 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 12:50:11,105 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,105 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,106 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,106 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,106 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,106 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,106 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,106 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,107 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,107 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,107 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,107 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,107 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,107 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,108 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,108 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,108 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,108 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,108 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,108 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,108 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,108 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,109 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,109 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,109 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,109 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,109 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,109 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,110 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,110 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,110 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,110 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,110 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,110 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,110 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,110 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,110 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,111 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,111 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,111 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,111 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,111 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,111 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,112 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,114 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,114 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,114 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,115 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,115 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,116 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,116 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,116 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,116 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,116 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 12:50:11,119 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-09 12:50:11,151 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 12:50:11,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 12:50:11,152 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-09 12:50:11,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-09 12:50:11,174 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-09 12:50:11,179 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=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, 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 [2022-02-09 12:50:11,179 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-09 12:50:11,284 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 12:50:11,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 12:50:11,287 INFO L85 PathProgramCache]: Analyzing trace with hash 834222894, now seen corresponding path program 1 times [2022-02-09 12:50:11,293 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 12:50:11,293 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749777706] [2022-02-09 12:50:11,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 12:50:11,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 12:50:11,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 12:50:11,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:50:11,456 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 12:50:11,457 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749777706] [2022-02-09 12:50:11,457 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749777706] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 12:50:11,458 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 12:50:11,458 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 12:50:11,459 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520511551] [2022-02-09 12:50:11,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 12:50:11,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-09 12:50:11,464 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 12:50:11,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-09 12:50:11,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 12:50:11,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:11,483 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 12:50:11,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 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) [2022-02-09 12:50:11,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:11,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:11,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-09 12:50:11,522 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 12:50:11,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 12:50:11,522 INFO L85 PathProgramCache]: Analyzing trace with hash 290398187, now seen corresponding path program 1 times [2022-02-09 12:50:11,523 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 12:50:11,523 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010745204] [2022-02-09 12:50:11,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 12:50:11,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 12:50:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 12:50:11,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:50:11,785 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 12:50:11,785 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010745204] [2022-02-09 12:50:11,786 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010745204] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 12:50:11,786 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 12:50:11,786 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 12:50:11,786 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256079067] [2022-02-09 12:50:11,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 12:50:11,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 12:50:11,787 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 12:50:11,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 12:50:11,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-09 12:50:11,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:11,791 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 12:50:11,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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) [2022-02-09 12:50:11,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:11,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:11,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:11,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 12:50:11,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-09 12:50:11,867 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 12:50:11,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 12:50:11,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1320289993, now seen corresponding path program 1 times [2022-02-09 12:50:11,867 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 12:50:11,868 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279387804] [2022-02-09 12:50:11,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 12:50:11,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 12:50:11,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 12:50:11,934 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:50:11,934 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 12:50:11,934 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279387804] [2022-02-09 12:50:11,934 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279387804] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 12:50:11,934 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482760113] [2022-02-09 12:50:11,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 12:50:11,935 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 12:50:11,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 12:50:11,936 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 12:50:11,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-09 12:50:12,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 12:50:12,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-09 12:50:12,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 12:50:12,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:50:12,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 12:50:12,422 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:50:12,423 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482760113] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 12:50:12,423 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 12:50:12,423 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2022-02-09 12:50:12,423 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830989876] [2022-02-09 12:50:12,423 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 12:50:12,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-09 12:50:12,424 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 12:50:12,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-09 12:50:12,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-02-09 12:50:12,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:12,425 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 12:50:12,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 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) [2022-02-09 12:50:12,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:12,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-09 12:50:12,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:12,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:12,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 12:50:12,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 12:50:12,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-09 12:50:12,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-02-09 12:50:12,694 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 12:50:12,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 12:50:12,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1844773149, now seen corresponding path program 1 times [2022-02-09 12:50:12,695 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 12:50:12,695 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394962536] [2022-02-09 12:50:12,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 12:50:12,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 12:50:12,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 12:50:12,931 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:50:12,931 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 12:50:12,931 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394962536] [2022-02-09 12:50:12,932 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394962536] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 12:50:12,932 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020277884] [2022-02-09 12:50:12,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 12:50:12,932 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 12:50:12,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 12:50:12,933 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 12:50:12,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-09 12:50:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 12:50:13,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 20 conjunts are in the unsatisfiable core [2022-02-09 12:50:13,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 12:50:13,401 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:50:13,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 12:50:13,787 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:50:13,787 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020277884] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 12:50:13,787 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 12:50:13,788 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 33 [2022-02-09 12:50:13,788 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930185558] [2022-02-09 12:50:13,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 12:50:13,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-02-09 12:50:13,788 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 12:50:13,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-02-09 12:50:13,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=882, Unknown=0, NotChecked=0, Total=1056 [2022-02-09 12:50:13,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:13,790 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 12:50:13,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.0606060606060606) internal successors, (134), 33 states have internal predecessors, (134), 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) [2022-02-09 12:50:13,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:13,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-09 12:50:13,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 12:50:13,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:14,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:14,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 12:50:14,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 12:50:14,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-09 12:50:14,542 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-09 12:50:14,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 12:50:14,724 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 12:50:14,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 12:50:14,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1496480925, now seen corresponding path program 2 times [2022-02-09 12:50:14,724 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 12:50:14,724 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443068480] [2022-02-09 12:50:14,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 12:50:14,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 12:50:14,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 12:50:15,040 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:50:15,041 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 12:50:15,041 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443068480] [2022-02-09 12:50:15,041 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443068480] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 12:50:15,041 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634570049] [2022-02-09 12:50:15,041 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 12:50:15,041 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 12:50:15,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 12:50:15,051 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 12:50:15,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-09 12:50:15,117 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 12:50:15,117 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 12:50:15,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 32 conjunts are in the unsatisfiable core [2022-02-09 12:50:15,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 12:50:15,711 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:50:15,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 12:50:16,574 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:50:16,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634570049] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 12:50:16,574 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 12:50:16,574 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 50 [2022-02-09 12:50:16,575 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657790417] [2022-02-09 12:50:16,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 12:50:16,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-02-09 12:50:16,575 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 12:50:16,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-02-09 12:50:16,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=2215, Unknown=0, NotChecked=0, Total=2450 [2022-02-09 12:50:16,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:16,581 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 12:50:16,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 3.24) internal successors, (162), 50 states have internal predecessors, (162), 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) [2022-02-09 12:50:16,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:16,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-09 12:50:16,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 12:50:16,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-02-09 12:50:16,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:18,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:18,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 12:50:18,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 12:50:18,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 12:50:18,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 12:50:18,223 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-02-09 12:50:18,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 12:50:18,404 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 12:50:18,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 12:50:18,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1580530251, now seen corresponding path program 3 times [2022-02-09 12:50:18,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 12:50:18,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694267764] [2022-02-09 12:50:18,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 12:50:18,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 12:50:18,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 12:50:18,869 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 21 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:50:18,869 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 12:50:18,869 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694267764] [2022-02-09 12:50:18,869 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694267764] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 12:50:18,869 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097531204] [2022-02-09 12:50:18,870 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 12:50:18,870 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 12:50:18,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 12:50:18,871 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 12:50:18,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-09 12:50:18,935 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-02-09 12:50:18,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 12:50:18,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 45 conjunts are in the unsatisfiable core [2022-02-09 12:50:18,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 12:50:19,801 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:50:19,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 12:50:21,040 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 1 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:50:21,041 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097531204] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 12:50:21,041 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 12:50:21,041 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 70 [2022-02-09 12:50:21,041 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081134167] [2022-02-09 12:50:21,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 12:50:21,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-02-09 12:50:21,042 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 12:50:21,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-02-09 12:50:21,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=460, Invalid=4370, Unknown=0, NotChecked=0, Total=4830 [2022-02-09 12:50:21,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:21,044 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 12:50:21,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 2.7857142857142856) internal successors, (195), 70 states have internal predecessors, (195), 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) [2022-02-09 12:50:21,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:21,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-09 12:50:21,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 12:50:21,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 12:50:21,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-09 12:50:21,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:22,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:22,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 12:50:22,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 12:50:22,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 12:50:22,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 12:50:22,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 12:50:22,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-09 12:50:22,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 12:50:22,337 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 12:50:22,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 12:50:22,337 INFO L85 PathProgramCache]: Analyzing trace with hash 134953023, now seen corresponding path program 4 times [2022-02-09 12:50:22,337 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 12:50:22,337 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003228649] [2022-02-09 12:50:22,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 12:50:22,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 12:50:22,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 12:50:22,863 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 38 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:50:22,864 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 12:50:22,864 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003228649] [2022-02-09 12:50:22,864 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003228649] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 12:50:22,864 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773351318] [2022-02-09 12:50:22,864 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-09 12:50:22,864 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 12:50:22,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 12:50:22,865 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 12:50:22,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-09 12:50:22,913 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-09 12:50:22,913 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 12:50:22,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 52 conjunts are in the unsatisfiable core [2022-02-09 12:50:22,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 12:50:23,897 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:50:23,898 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 12:50:25,233 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-09 12:50:25,234 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773351318] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 12:50:25,234 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 12:50:25,234 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 30] total 81 [2022-02-09 12:50:25,234 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779013876] [2022-02-09 12:50:25,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 12:50:25,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2022-02-09 12:50:25,235 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 12:50:25,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2022-02-09 12:50:25,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=533, Invalid=5947, Unknown=0, NotChecked=0, Total=6480 [2022-02-09 12:50:25,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:25,237 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 12:50:25,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 81 states have (on average 2.6790123456790123) internal successors, (217), 81 states have internal predecessors, (217), 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) [2022-02-09 12:50:25,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:25,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-09 12:50:25,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 12:50:25,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 12:50:25,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-09 12:50:25,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-09 12:50:25,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:27,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:27,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 12:50:27,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 12:50:27,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 12:50:27,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 12:50:27,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-09 12:50:27,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-09 12:50:27,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-09 12:50:27,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 12:50:27,278 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 12:50:27,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 12:50:27,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1504160449, now seen corresponding path program 5 times [2022-02-09 12:50:27,278 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 12:50:27,278 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998138672] [2022-02-09 12:50:27,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 12:50:27,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 12:50:27,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 12:50:27,869 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 60 proven. 104 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:50:27,870 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 12:50:27,870 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998138672] [2022-02-09 12:50:27,870 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998138672] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 12:50:27,870 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33653052] [2022-02-09 12:50:27,870 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-09 12:50:27,870 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 12:50:27,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 12:50:27,871 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 12:50:27,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-09 12:50:27,948 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2022-02-09 12:50:27,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 12:50:27,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 65 conjunts are in the unsatisfiable core [2022-02-09 12:50:27,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 12:50:29,022 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:50:29,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 12:50:30,658 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 9 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:50:30,659 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33653052] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 12:50:30,659 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 12:50:30,659 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 39, 38] total 102 [2022-02-09 12:50:30,659 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022782439] [2022-02-09 12:50:30,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 12:50:30,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2022-02-09 12:50:30,660 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 12:50:30,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2022-02-09 12:50:30,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=885, Invalid=9417, Unknown=0, NotChecked=0, Total=10302 [2022-02-09 12:50:30,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:30,662 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 12:50:30,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 102 states have (on average 2.5) internal successors, (255), 102 states have internal predecessors, (255), 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) [2022-02-09 12:50:30,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:30,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-09 12:50:30,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 12:50:30,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 12:50:30,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-09 12:50:30,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-02-09 12:50:30,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-02-09 12:50:30,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:33,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:33,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 12:50:33,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 12:50:33,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 12:50:33,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 12:50:33,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-09 12:50:33,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-09 12:50:33,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-09 12:50:33,738 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-02-09 12:50:33,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 12:50:33,929 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 12:50:33,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 12:50:33,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1318910481, now seen corresponding path program 6 times [2022-02-09 12:50:33,929 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 12:50:33,929 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702760678] [2022-02-09 12:50:33,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 12:50:33,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 12:50:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 12:50:34,754 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 87 proven. 138 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:50:34,755 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 12:50:34,755 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702760678] [2022-02-09 12:50:34,755 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702760678] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 12:50:34,755 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929561324] [2022-02-09 12:50:34,755 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-09 12:50:34,755 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 12:50:34,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 12:50:34,756 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 12:50:34,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-09 12:50:34,827 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2022-02-09 12:50:34,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 12:50:34,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 73 conjunts are in the unsatisfiable core [2022-02-09 12:50:34,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 12:50:36,578 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:50:36,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 12:50:38,912 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 205 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-02-09 12:50:38,912 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929561324] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 12:50:38,912 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 12:50:38,912 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 44, 39] total 113 [2022-02-09 12:50:38,915 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238608765] [2022-02-09 12:50:38,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 12:50:38,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 113 states [2022-02-09 12:50:38,916 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 12:50:38,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2022-02-09 12:50:38,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=897, Invalid=11759, Unknown=0, NotChecked=0, Total=12656 [2022-02-09 12:50:38,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:38,919 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 12:50:38,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 113 states, 113 states have (on average 2.424778761061947) internal successors, (274), 113 states have internal predecessors, (274), 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) [2022-02-09 12:50:38,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:38,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-09 12:50:38,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 12:50:38,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 12:50:38,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-09 12:50:38,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-02-09 12:50:38,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-02-09 12:50:38,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-02-09 12:50:38,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:42,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:42,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 12:50:42,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 12:50:42,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 12:50:42,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 12:50:42,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-09 12:50:42,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-09 12:50:42,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-09 12:50:42,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-02-09 12:50:42,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-09 12:50:42,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-02-09 12:50:42,687 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 12:50:42,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 12:50:42,688 INFO L85 PathProgramCache]: Analyzing trace with hash 130067901, now seen corresponding path program 7 times [2022-02-09 12:50:42,688 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 12:50:42,688 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328485034] [2022-02-09 12:50:42,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 12:50:42,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 12:50:42,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 12:50:43,718 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 124 proven. 226 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:50:43,718 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 12:50:43,718 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328485034] [2022-02-09 12:50:43,719 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328485034] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 12:50:43,719 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905162992] [2022-02-09 12:50:43,719 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-09 12:50:43,719 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 12:50:43,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 12:50:43,722 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 12:50:43,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-09 12:50:43,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 12:50:43,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 87 conjunts are in the unsatisfiable core [2022-02-09 12:50:43,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 12:50:45,710 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 350 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:50:45,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 12:50:48,735 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-02-09 12:50:48,735 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905162992] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 12:50:48,735 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 12:50:48,735 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 52, 45] total 134 [2022-02-09 12:50:48,735 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678495815] [2022-02-09 12:50:48,735 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 12:50:48,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 134 states [2022-02-09 12:50:48,736 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 12:50:48,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 134 interpolants. [2022-02-09 12:50:48,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1182, Invalid=16640, Unknown=0, NotChecked=0, Total=17822 [2022-02-09 12:50:48,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:48,739 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 12:50:48,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 134 states, 134 states have (on average 2.328358208955224) internal successors, (312), 134 states have internal predecessors, (312), 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) [2022-02-09 12:50:48,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:48,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-09 12:50:48,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 12:50:48,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 12:50:48,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-09 12:50:48,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-02-09 12:50:48,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-02-09 12:50:48,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-02-09 12:50:48,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2022-02-09 12:50:48,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:53,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:50:53,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 12:50:53,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 12:50:53,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 12:50:53,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 12:50:53,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-09 12:50:53,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-09 12:50:53,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-09 12:50:53,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-02-09 12:50:53,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2022-02-09 12:50:53,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-09 12:50:53,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-02-09 12:50:53,552 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 12:50:53,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 12:50:53,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1700335735, now seen corresponding path program 8 times [2022-02-09 12:50:53,554 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 12:50:53,554 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790871290] [2022-02-09 12:50:53,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 12:50:53,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 12:50:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 12:50:54,754 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 171 proven. 332 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:50:54,755 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 12:50:54,755 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790871290] [2022-02-09 12:50:54,755 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790871290] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 12:50:54,755 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306147089] [2022-02-09 12:50:54,755 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 12:50:54,755 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 12:50:54,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 12:50:54,756 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 12:50:54,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-09 12:50:54,842 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 12:50:54,842 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 12:50:54,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 101 conjunts are in the unsatisfiable core [2022-02-09 12:50:54,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 12:50:57,196 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 0 proven. 503 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:50:57,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 12:51:00,506 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 0 proven. 431 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-02-09 12:51:00,506 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306147089] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 12:51:00,506 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 12:51:00,507 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 60, 51] total 155 [2022-02-09 12:51:00,507 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258504532] [2022-02-09 12:51:00,507 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 12:51:00,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 155 states [2022-02-09 12:51:00,508 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 12:51:00,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 155 interpolants. [2022-02-09 12:51:00,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1528, Invalid=22342, Unknown=0, NotChecked=0, Total=23870 [2022-02-09 12:51:00,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:51:00,511 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 12:51:00,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 155 states, 155 states have (on average 2.2580645161290325) internal successors, (350), 155 states have internal predecessors, (350), 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) [2022-02-09 12:51:00,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:51:00,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-09 12:51:00,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 12:51:00,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 12:51:00,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-09 12:51:00,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-02-09 12:51:00,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-02-09 12:51:00,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-02-09 12:51:00,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2022-02-09 12:51:00,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 141 states. [2022-02-09 12:51:00,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:51:06,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:51:06,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 12:51:06,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 12:51:06,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 12:51:06,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 12:51:06,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-09 12:51:06,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-09 12:51:06,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-09 12:51:06,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-02-09 12:51:06,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2022-02-09 12:51:06,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2022-02-09 12:51:06,888 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-02-09 12:51:07,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-02-09 12:51:07,070 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 12:51:07,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 12:51:07,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1066040081, now seen corresponding path program 9 times [2022-02-09 12:51:07,071 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 12:51:07,071 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183195876] [2022-02-09 12:51:07,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 12:51:07,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 12:51:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 12:51:07,300 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-02-09 12:51:07,301 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 12:51:07,301 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183195876] [2022-02-09 12:51:07,301 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183195876] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 12:51:07,301 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383269092] [2022-02-09 12:51:07,302 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 12:51:07,302 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 12:51:07,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 12:51:07,304 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 12:51:07,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-09 12:51:07,395 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2022-02-09 12:51:07,395 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 12:51:07,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 43 conjunts are in the unsatisfiable core [2022-02-09 12:51:07,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 12:51:07,816 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 20 proven. 744 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 12:51:07,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 12:51:08,467 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 326 proven. 411 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-02-09 12:51:08,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383269092] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 12:51:08,468 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 12:51:08,468 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 20, 15] total 27 [2022-02-09 12:51:08,468 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685012032] [2022-02-09 12:51:08,468 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 12:51:08,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-09 12:51:08,469 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 12:51:08,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-09 12:51:08,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=516, Unknown=0, NotChecked=0, Total=702 [2022-02-09 12:51:08,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:51:08,469 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 12:51:08,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 9.185185185185185) internal successors, (248), 27 states have internal predecessors, (248), 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) [2022-02-09 12:51:08,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:51:08,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-09 12:51:08,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 12:51:08,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 12:51:08,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-09 12:51:08,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-02-09 12:51:08,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-02-09 12:51:08,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-02-09 12:51:08,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2022-02-09 12:51:08,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 141 states. [2022-02-09 12:51:08,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 189 states. [2022-02-09 12:51:08,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:51:08,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:51:08,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 12:51:08,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 12:51:08,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 12:51:08,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 12:51:08,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-09 12:51:08,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-09 12:51:08,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-09 12:51:08,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-02-09 12:51:08,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2022-02-09 12:51:08,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2022-02-09 12:51:08,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-09 12:51:08,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-02-09 12:51:08,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-02-09 12:51:08,780 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 12:51:08,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 12:51:08,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1930365925, now seen corresponding path program 10 times [2022-02-09 12:51:08,780 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 12:51:08,780 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446888062] [2022-02-09 12:51:08,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 12:51:08,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 12:51:08,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 12:51:10,203 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 275 proven. 566 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:51:10,203 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 12:51:10,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446888062] [2022-02-09 12:51:10,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446888062] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 12:51:10,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857047392] [2022-02-09 12:51:10,203 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-09 12:51:10,203 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 12:51:10,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 12:51:10,205 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 12:51:10,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-09 12:51:10,321 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-09 12:51:10,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 12:51:10,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 124 conjunts are in the unsatisfiable core [2022-02-09 12:51:10,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 12:51:14,490 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 0 proven. 841 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:51:14,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 12:51:19,293 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 106 proven. 735 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:51:19,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857047392] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 12:51:19,293 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 12:51:19,294 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 74, 70] total 201 [2022-02-09 12:51:19,294 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334125859] [2022-02-09 12:51:19,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 12:51:19,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 201 states [2022-02-09 12:51:19,294 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 12:51:19,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 201 interpolants. [2022-02-09 12:51:19,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4338, Invalid=35862, Unknown=0, NotChecked=0, Total=40200 [2022-02-09 12:51:19,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:51:19,298 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 12:51:19,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 201 states, 201 states have (on average 2.1940298507462686) internal successors, (441), 201 states have internal predecessors, (441), 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) [2022-02-09 12:51:19,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:51:19,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-09 12:51:19,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 12:51:19,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 12:51:19,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-09 12:51:19,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-02-09 12:51:19,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-02-09 12:51:19,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-02-09 12:51:19,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2022-02-09 12:51:19,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 141 states. [2022-02-09 12:51:19,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 189 states. [2022-02-09 12:51:19,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-02-09 12:51:19,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:51:25,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:51:25,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 12:51:25,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 12:51:25,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 12:51:25,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 12:51:25,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-09 12:51:25,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-09 12:51:25,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-09 12:51:25,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-02-09 12:51:25,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2022-02-09 12:51:25,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2022-02-09 12:51:25,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-09 12:51:25,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2022-02-09 12:51:25,902 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-09 12:51:26,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-02-09 12:51:26,089 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 12:51:26,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 12:51:26,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1509475365, now seen corresponding path program 11 times [2022-02-09 12:51:26,090 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 12:51:26,090 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176661945] [2022-02-09 12:51:26,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 12:51:26,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 12:51:26,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 12:51:27,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1072 backedges. 347 proven. 725 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:51:27,820 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 12:51:27,820 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176661945] [2022-02-09 12:51:27,821 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176661945] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 12:51:27,821 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771783086] [2022-02-09 12:51:27,821 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-09 12:51:27,821 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 12:51:27,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 12:51:27,829 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 12:51:27,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-02-09 12:51:27,928 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 20 check-sat command(s) [2022-02-09 12:51:27,928 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 12:51:27,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 138 conjunts are in the unsatisfiable core [2022-02-09 12:51:27,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 12:51:31,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1072 backedges. 0 proven. 1072 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 12:51:31,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 12:51:38,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1072 backedges. 16 proven. 924 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-02-09 12:51:38,016 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771783086] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 12:51:38,016 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 12:51:38,016 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 82, 70] total 216 [2022-02-09 12:51:38,016 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223878363] [2022-02-09 12:51:38,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 12:51:38,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 216 states [2022-02-09 12:51:38,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 12:51:38,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 216 interpolants. [2022-02-09 12:51:38,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3204, Invalid=43236, Unknown=0, NotChecked=0, Total=46440 [2022-02-09 12:51:38,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:51:38,029 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 12:51:38,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 216 states, 216 states have (on average 2.134259259259259) internal successors, (461), 216 states have internal predecessors, (461), 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) [2022-02-09 12:51:38,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:51:38,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-09 12:51:38,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 12:51:38,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 12:51:38,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-09 12:51:38,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-02-09 12:51:38,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-02-09 12:51:38,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-02-09 12:51:38,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2022-02-09 12:51:38,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 141 states. [2022-02-09 12:51:38,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 189 states. [2022-02-09 12:51:38,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-02-09 12:51:38,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 178 states. [2022-02-09 12:51:38,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:54:48,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 12:54:48,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 12:54:48,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 12:54:48,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-09 12:54:48,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-09 12:54:48,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-09 12:54:48,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2022-02-09 12:54:48,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 206 states. [2022-02-09 12:54:48,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 501 states. [2022-02-09 12:54:48,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 622 states. [2022-02-09 12:54:48,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 745 states. [2022-02-09 12:54:48,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-09 12:54:48,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 602 states. [2022-02-09 12:54:48,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 891 states. [2022-02-09 12:54:48,522 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-02-09 12:54:48,522 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-09 12:54:48,522 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-09 12:54:48,539 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-02-09 12:54:48,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-02-09 12:54:48,745 INFO L732 BasicCegarLoop]: Path program histogram: [11, 1, 1, 1] [2022-02-09 12:54:48,746 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-09 12:54:48,746 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-09 12:54:48,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 12:54:48 BasicIcfg [2022-02-09 12:54:48,748 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-09 12:54:48,748 INFO L158 Benchmark]: Toolchain (without parser) took 278256.15ms. Allocated memory was 187.7MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 164.9MB in the beginning and 2.4GB in the end (delta: -2.2GB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. [2022-02-09 12:54:48,748 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 187.7MB. Free memory is still 150.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 12:54:48,748 INFO L158 Benchmark]: CACSL2BoogieTranslator took 192.96ms. Allocated memory is still 187.7MB. Free memory was 164.7MB in the beginning and 162.0MB in the end (delta: 2.7MB). Peak memory consumption was 9.0MB. Max. memory is 8.0GB. [2022-02-09 12:54:48,749 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.18ms. Allocated memory is still 187.7MB. Free memory was 162.0MB in the beginning and 160.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-09 12:54:48,749 INFO L158 Benchmark]: Boogie Preprocessor took 14.20ms. Allocated memory is still 187.7MB. Free memory was 160.5MB in the beginning and 159.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 12:54:48,749 INFO L158 Benchmark]: RCFGBuilder took 347.37ms. Allocated memory is still 187.7MB. Free memory was 159.0MB in the beginning and 145.8MB in the end (delta: 13.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-02-09 12:54:48,749 INFO L158 Benchmark]: TraceAbstraction took 277675.78ms. Allocated memory was 187.7MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 145.4MB in the beginning and 2.4GB in the end (delta: -2.2GB). Peak memory consumption was 994.7MB. Max. memory is 8.0GB. [2022-02-09 12:54:48,750 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 187.7MB. Free memory is still 150.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 192.96ms. Allocated memory is still 187.7MB. Free memory was 164.7MB in the beginning and 162.0MB in the end (delta: 2.7MB). Peak memory consumption was 9.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.18ms. Allocated memory is still 187.7MB. Free memory was 162.0MB in the beginning and 160.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.20ms. Allocated memory is still 187.7MB. Free memory was 160.5MB in the beginning and 159.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 347.37ms. Allocated memory is still 187.7MB. Free memory was 159.0MB in the beginning and 145.8MB in the end (delta: 13.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 277675.78ms. Allocated memory was 187.7MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 145.4MB in the beginning and 2.4GB in the end (delta: -2.2GB). Peak memory consumption was 994.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 287076, positive: 218732, positive conditional: 218069, positive unconditional: 663, negative: 68344, negative conditional: 68338, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 218990, positive: 218732, positive conditional: 218069, positive unconditional: 663, negative: 258, negative conditional: 252, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 218990, positive: 218732, positive conditional: 218069, positive unconditional: 663, negative: 258, negative conditional: 252, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 222276, positive: 218732, positive conditional: 218015, positive unconditional: 717, negative: 3544, negative conditional: 3286, negative unconditional: 258, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 222276, positive: 218732, positive conditional: 147634, positive unconditional: 71098, negative: 3544, negative conditional: 3038, negative unconditional: 506, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 222276, positive: 218732, positive conditional: 147634, positive unconditional: 71098, negative: 3544, negative conditional: 3038, negative unconditional: 506, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 778, positive: 701, positive conditional: 140, positive unconditional: 561, negative: 77, negative conditional: 71, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 778, positive: 560, positive conditional: 0, positive unconditional: 560, negative: 218, negative conditional: 0, negative unconditional: 218, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 218, positive: 141, positive conditional: 140, positive unconditional: 1, negative: 77, negative conditional: 71, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 533, positive: 358, positive conditional: 330, positive unconditional: 28, negative: 175, negative conditional: 142, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 222276, positive: 218031, positive conditional: 147494, positive unconditional: 70537, negative: 3467, negative conditional: 2967, negative unconditional: 500, unknown: 778, unknown conditional: 211, unknown unconditional: 567] , Statistics on independence cache: Total cache size (in pairs): 778, Positive cache size: 701, Positive conditional cache size: 140, Positive unconditional cache size: 561, Negative cache size: 77, Negative conditional cache size: 71, Negative unconditional cache size: 6, Eliminated conditions: 70629, Maximal queried relation: 13, Independence queries for same thread: 68086 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 276, Number of trivial persistent sets: 257, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 669, positive: 663, positive conditional: 0, positive unconditional: 663, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 287076, positive: 218732, positive conditional: 218069, positive unconditional: 663, negative: 68344, negative conditional: 68338, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 218990, positive: 218732, positive conditional: 218069, positive unconditional: 663, negative: 258, negative conditional: 252, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 218990, positive: 218732, positive conditional: 218069, positive unconditional: 663, negative: 258, negative conditional: 252, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 222276, positive: 218732, positive conditional: 218015, positive unconditional: 717, negative: 3544, negative conditional: 3286, negative unconditional: 258, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 222276, positive: 218732, positive conditional: 147634, positive unconditional: 71098, negative: 3544, negative conditional: 3038, negative unconditional: 506, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 222276, positive: 218732, positive conditional: 147634, positive unconditional: 71098, negative: 3544, negative conditional: 3038, negative unconditional: 506, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 778, positive: 701, positive conditional: 140, positive unconditional: 561, negative: 77, negative conditional: 71, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 778, positive: 560, positive conditional: 0, positive unconditional: 560, negative: 218, negative conditional: 0, negative unconditional: 218, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 218, positive: 141, positive conditional: 140, positive unconditional: 1, negative: 77, negative conditional: 71, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 533, positive: 358, positive conditional: 330, positive unconditional: 28, negative: 175, negative conditional: 142, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 222276, positive: 218031, positive conditional: 147494, positive unconditional: 70537, negative: 3467, negative conditional: 2967, negative unconditional: 500, unknown: 778, unknown conditional: 211, unknown unconditional: 567] , Statistics on independence cache: Total cache size (in pairs): 778, Positive cache size: 701, Positive conditional cache size: 140, Positive unconditional cache size: 561, Negative cache size: 77, Negative conditional cache size: 71, Negative unconditional cache size: 6, Eliminated conditions: 70629, Maximal queried relation: 13, Independence queries for same thread: 68086 - 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: 78]: 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 98 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 277.6s, OverallIterations: 14, TraceHistogramMax: 0, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 220.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 4017, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 53.2s InterpolantComputationTime, 2996 NumberOfCodeBlocks, 2984 NumberOfCodeBlocksAsserted, 85 NumberOfCheckSat, 4393 ConstructedInterpolants, 0 QuantifiedInterpolants, 39821 SizeOfPredicates, 290 NumberOfNonLiveVariables, 2706 ConjunctsInSsa, 784 ConjunctsInUnsatCore, 38 InterpolantComputations, 2 PerfectInterpolantSequences, 1928/12273 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-09 12:54:48,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-02-09 12:54:48,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...