/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-NewStatesSleep-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 07:12:50,462 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 07:12:50,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 07:12:50,486 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-09 07:12:50,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-09 07:12:50,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-09 07:12:50,494 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-09 07:12:50,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-09 07:12:50,500 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-09 07:12:50,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-09 07:12:50,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-09 07:12:50,504 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-09 07:12:50,504 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-09 07:12:50,505 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-09 07:12:50,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-09 07:12:50,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-09 07:12:50,506 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-09 07:12:50,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-09 07:12:50,508 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-09 07:12:50,508 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-09 07:12:50,509 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-09 07:12:50,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-09 07:12:50,513 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-09 07:12:50,514 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-09 07:12:50,523 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-09 07:12:50,524 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-09 07:12:50,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-09 07:12:50,525 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-09 07:12:50,526 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-09 07:12:50,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-09 07:12:50,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-09 07:12:50,527 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-09 07:12:50,527 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-09 07:12:50,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-09 07:12:50,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-09 07:12:50,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-09 07:12:50,530 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-NewStatesSleep-NoLbe.epf [2022-02-09 07:12:50,581 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 07:12:50,581 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 07:12:50,582 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 07:12:50,582 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 07:12:50,583 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 07:12:50,583 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 07:12:50,583 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 07:12:50,583 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 07:12:50,584 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 07:12:50,584 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 07:12:50,584 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 07:12:50,585 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 07:12:50,585 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 07:12:50,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 07:12:50,585 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 07:12:50,585 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 07:12:50,585 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 07:12:50,585 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 07:12:50,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 07:12:50,585 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 07:12:50,585 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 07:12:50,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 07:12:50,585 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 07:12:50,586 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 07:12:50,586 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 07:12:50,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 07:12:50,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 07:12:50,587 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-09 07:12:50,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 07:12:50,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 07:12:50,587 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 07:12:50,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 07:12:50,587 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 07:12:50,587 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-09 07:12:50,587 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 07:12:50,587 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-02-09 07:12:50,588 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 07:12:50,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 07:12:50,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 07:12:50,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 07:12:50,841 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-09 07:12:50,842 INFO L275 PluginConnector]: CDTParser initialized [2022-02-09 07:12:50,843 INFO L432 ainManager$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 07:12:50,900 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33070a5c0/0ef225021c3f4a5ca986a42d8ecaa939/FLAG2b201c843 [2022-02-09 07:12:51,278 INFO L306 CDTParser]: Found 1 translation units. [2022-02-09 07:12:51,279 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c [2022-02-09 07:12:51,284 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33070a5c0/0ef225021c3f4a5ca986a42d8ecaa939/FLAG2b201c843 [2022-02-09 07:12:51,709 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33070a5c0/0ef225021c3f4a5ca986a42d8ecaa939 [2022-02-09 07:12:51,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 07:12:51,713 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-09 07:12:51,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-09 07:12:51,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-09 07:12:51,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-09 07:12:51,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 07:12:51" (1/1) ... [2022-02-09 07:12:51,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d6e743f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:12:51, skipping insertion in model container [2022-02-09 07:12:51,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 07:12:51" (1/1) ... [2022-02-09 07:12:51,727 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-09 07:12:51,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-09 07:12:51,890 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 07:12:51,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 07:12:51,901 INFO L203 MainTranslator]: Completed pre-run [2022-02-09 07:12:51,952 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 07:12:51,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 07:12:51,979 INFO L208 MainTranslator]: Completed translation [2022-02-09 07:12:51,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:12:51 WrapperNode [2022-02-09 07:12:51,980 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-09 07:12:51,981 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 07:12:51,981 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 07:12:51,981 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 07:12:51,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:12:51" (1/1) ... [2022-02-09 07:12:51,996 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:12:51" (1/1) ... [2022-02-09 07:12:52,018 INFO L137 Inliner]: procedures = 21, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2022-02-09 07:12:52,019 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 07:12:52,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 07:12:52,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 07:12:52,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 07:12:52,026 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:12:51" (1/1) ... [2022-02-09 07:12:52,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:12:51" (1/1) ... [2022-02-09 07:12:52,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:12:51" (1/1) ... [2022-02-09 07:12:52,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:12:51" (1/1) ... [2022-02-09 07:12:52,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:12:51" (1/1) ... [2022-02-09 07:12:52,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:12:51" (1/1) ... [2022-02-09 07:12:52,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:12:51" (1/1) ... [2022-02-09 07:12:52,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 07:12:52,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 07:12:52,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 07:12:52,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 07:12:52,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:12:51" (1/1) ... [2022-02-09 07:12:52,058 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 07:12:52,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:12:52,093 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 07:12:52,139 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 07:12:52,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-09 07:12:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-09 07:12:52,165 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-09 07:12:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-09 07:12:52,165 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-09 07:12:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-09 07:12:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-09 07:12:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-09 07:12:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-09 07:12:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-09 07:12:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 07:12:52,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 07:12:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-09 07:12:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-09 07:12:52,167 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 07:12:52,251 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 07:12:52,252 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 07:12:52,431 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 07:12:52,467 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 07:12:52,468 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-09 07:12:52,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 07:12:52 BoogieIcfgContainer [2022-02-09 07:12:52,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 07:12:52,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 07:12:52,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 07:12:52,481 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 07:12:52,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.02 07:12:51" (1/3) ... [2022-02-09 07:12:52,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50cf50a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 07:12:52, skipping insertion in model container [2022-02-09 07:12:52,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 07:12:51" (2/3) ... [2022-02-09 07:12:52,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50cf50a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 07:12:52, skipping insertion in model container [2022-02-09 07:12:52,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 07:12:52" (3/3) ... [2022-02-09 07:12:52,483 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-nonblocking-cntr-alt.wvr.c [2022-02-09 07:12:52,487 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 07:12:52,487 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 07:12:52,487 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 07:12:52,487 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 07:12:52,538 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,539 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,539 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,539 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,540 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,541 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,542 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,542 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,542 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,542 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,542 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,543 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,544 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,544 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,544 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,544 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,544 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,545 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,545 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,545 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,545 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,546 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,546 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,546 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,547 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,547 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,548 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,548 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,548 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,548 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,549 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,549 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,549 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,549 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,549 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,549 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,549 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,549 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,551 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,551 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,551 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,557 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,557 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,557 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,558 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,558 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,560 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,560 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,561 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,561 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,561 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 07:12:52,566 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-09 07:12:52,610 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 07:12:52,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:12:52,613 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 07:12:52,631 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 07:12:52,635 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-09 07:12:52,642 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 07:12:52,642 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-09 07:12:52,702 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 07:12:52,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:12:52,707 INFO L85 PathProgramCache]: Analyzing trace with hash 834222894, now seen corresponding path program 1 times [2022-02-09 07:12:52,714 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:12:52,715 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153777455] [2022-02-09 07:12:52,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:12:52,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:12:52,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:12:52,860 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 07:12:52,861 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:12:52,861 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153777455] [2022-02-09 07:12:52,861 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153777455] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 07:12:52,862 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 07:12:52,862 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 07:12:52,863 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611306075] [2022-02-09 07:12:52,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 07:12:52,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-09 07:12:52,867 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:12:52,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-09 07:12:52,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 07:12:52,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:12:52,883 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:12:52,884 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 07:12:52,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:12:52,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:12:52,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-09 07:12:52,923 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 07:12:52,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:12:52,923 INFO L85 PathProgramCache]: Analyzing trace with hash 290398187, now seen corresponding path program 1 times [2022-02-09 07:12:52,924 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:12:52,924 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609824759] [2022-02-09 07:12:52,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:12:52,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:12:52,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:12:53,126 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 07:12:53,127 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:12:53,127 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609824759] [2022-02-09 07:12:53,127 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609824759] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 07:12:53,127 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 07:12:53,127 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 07:12:53,128 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55492153] [2022-02-09 07:12:53,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 07:12:53,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 07:12:53,129 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:12:53,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 07:12:53,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-09 07:12:53,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:12:53,130 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:12:53,130 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 07:12:53,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:12:53,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:12:53,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:12:53,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 07:12:53,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-09 07:12:53,233 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 07:12:53,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:12:53,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1320289993, now seen corresponding path program 1 times [2022-02-09 07:12:53,235 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:12:53,235 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124639411] [2022-02-09 07:12:53,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:12:53,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:12:53,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:12:53,384 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 07:12:53,384 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:12:53,384 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124639411] [2022-02-09 07:12:53,384 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124639411] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:12:53,384 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109760255] [2022-02-09 07:12:53,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:12:53,385 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:12:53,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:12:53,387 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 07:12:53,388 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 07:12:53,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:12:53,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-09 07:12:53,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:12:53,710 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 07:12:53,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:12:53,944 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 07:12:53,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109760255] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:12:53,945 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:12:53,945 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2022-02-09 07:12:53,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481748317] [2022-02-09 07:12:53,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:12:53,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-09 07:12:53,946 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:12:53,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-09 07:12:53,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-02-09 07:12:53,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:12:53,947 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:12:53,947 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 07:12:53,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:12:53,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-09 07:12:53,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:12:54,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:12:54,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 07:12:54,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:12:54,056 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 07:12:54,247 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 07:12:54,248 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 07:12:54,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:12:54,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1844773149, now seen corresponding path program 1 times [2022-02-09 07:12:54,249 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:12:54,249 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101018256] [2022-02-09 07:12:54,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:12:54,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:12:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:12:54,540 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 07:12:54,541 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:12:54,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101018256] [2022-02-09 07:12:54,542 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101018256] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:12:54,542 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901511650] [2022-02-09 07:12:54,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:12:54,542 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:12:54,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:12:54,543 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 07:12:54,545 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 07:12:54,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:12:54,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 20 conjunts are in the unsatisfiable core [2022-02-09 07:12:54,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:12:55,028 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 07:12:55,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:12:55,447 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 07:12:55,448 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901511650] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:12:55,448 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:12:55,448 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 33 [2022-02-09 07:12:55,448 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799448086] [2022-02-09 07:12:55,448 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:12:55,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-02-09 07:12:55,451 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:12:55,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-02-09 07:12:55,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=882, Unknown=0, NotChecked=0, Total=1056 [2022-02-09 07:12:55,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:12:55,454 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:12:55,455 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 07:12:55,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:12:55,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-09 07:12:55,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:12:55,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:12:56,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:12:56,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 07:12:56,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:12:56,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-09 07:12:56,332 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 07:12:56,492 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 07:12:56,493 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 07:12:56,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:12:56,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1496480925, now seen corresponding path program 2 times [2022-02-09 07:12:56,494 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:12:56,494 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74677644] [2022-02-09 07:12:56,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:12:56,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:12:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:12:56,861 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 07:12:56,861 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:12:56,861 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74677644] [2022-02-09 07:12:56,861 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74677644] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:12:56,862 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1203155652] [2022-02-09 07:12:56,862 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 07:12:56,862 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:12:56,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:12:56,863 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 07:12:56,864 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 07:12:56,918 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 07:12:56,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 07:12:56,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 32 conjunts are in the unsatisfiable core [2022-02-09 07:12:56,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:12:57,638 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 07:12:57,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:12:58,458 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 07:12:58,458 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1203155652] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:12:58,459 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:12:58,459 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 50 [2022-02-09 07:12:58,459 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703820876] [2022-02-09 07:12:58,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:12:58,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-02-09 07:12:58,459 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:12:58,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-02-09 07:12:58,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=2215, Unknown=0, NotChecked=0, Total=2450 [2022-02-09 07:12:58,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:12:58,461 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:12:58,461 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 07:12:58,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:12:58,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-09 07:12:58,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:12:58,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-02-09 07:12:58,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:00,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:00,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 07:13:00,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:13:00,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 07:13:00,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:13:00,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-09 07:13:00,439 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 07:13:00,440 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 07:13:00,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:13:00,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1580530251, now seen corresponding path program 3 times [2022-02-09 07:13:00,440 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:13:00,440 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906877289] [2022-02-09 07:13:00,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:13:00,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:13:00,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:13:00,928 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 07:13:00,928 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:13:00,929 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906877289] [2022-02-09 07:13:00,929 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906877289] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:13:00,929 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071456187] [2022-02-09 07:13:00,929 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 07:13:00,929 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:13:00,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:13:00,931 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 07:13:00,932 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 07:13:00,992 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-02-09 07:13:00,992 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 07:13:00,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 45 conjunts are in the unsatisfiable core [2022-02-09 07:13:00,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:13:01,975 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 07:13:01,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:13:03,310 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 07:13:03,310 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071456187] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:13:03,311 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:13:03,311 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 70 [2022-02-09 07:13:03,311 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328713097] [2022-02-09 07:13:03,311 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:13:03,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-02-09 07:13:03,312 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:13:03,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-02-09 07:13:03,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=460, Invalid=4370, Unknown=0, NotChecked=0, Total=4830 [2022-02-09 07:13:03,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:03,314 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:13:03,315 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 07:13:03,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:03,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-09 07:13:03,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:13:03,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 07:13:03,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:13:03,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:04,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:04,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 07:13:04,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:13:04,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 07:13:04,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:13:04,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:13:04,697 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 07:13:04,880 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 07:13:04,881 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 07:13:04,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:13:04,881 INFO L85 PathProgramCache]: Analyzing trace with hash 134953023, now seen corresponding path program 4 times [2022-02-09 07:13:04,881 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:13:04,881 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102414774] [2022-02-09 07:13:04,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:13:04,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:13:04,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:13:05,388 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 07:13:05,388 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:13:05,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102414774] [2022-02-09 07:13:05,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102414774] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:13:05,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775739455] [2022-02-09 07:13:05,388 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-09 07:13:05,388 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:13:05,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:13:05,390 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 07:13:05,393 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 07:13:05,440 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-09 07:13:05,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 07:13:05,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 52 conjunts are in the unsatisfiable core [2022-02-09 07:13:05,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:13:06,520 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 07:13:06,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:13:08,090 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 07:13:08,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775739455] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:13:08,090 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:13:08,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 30] total 81 [2022-02-09 07:13:08,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039563228] [2022-02-09 07:13:08,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:13:08,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2022-02-09 07:13:08,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:13:08,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2022-02-09 07:13:08,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=533, Invalid=5947, Unknown=0, NotChecked=0, Total=6480 [2022-02-09 07:13:08,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:08,093 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:13:08,093 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 07:13:08,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:08,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-09 07:13:08,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:13:08,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 07:13:08,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:13:08,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:13:08,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:10,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:10,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 07:13:10,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:13:10,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 07:13:10,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:13:10,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-09 07:13:10,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-09 07:13:10,324 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 07:13:10,507 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 07:13:10,508 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 07:13:10,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:13:10,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1504160449, now seen corresponding path program 5 times [2022-02-09 07:13:10,508 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:13:10,509 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928833746] [2022-02-09 07:13:10,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:13:10,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:13:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:13:11,161 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 07:13:11,161 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:13:11,161 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928833746] [2022-02-09 07:13:11,161 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928833746] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:13:11,161 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711627695] [2022-02-09 07:13:11,161 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-09 07:13:11,161 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:13:11,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:13:11,162 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 07:13:11,164 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 07:13:11,218 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2022-02-09 07:13:11,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 07:13:11,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 65 conjunts are in the unsatisfiable core [2022-02-09 07:13:11,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:13:12,744 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 07:13:12,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:13:14,639 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 07:13:14,639 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711627695] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:13:14,639 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:13:14,639 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 39, 38] total 102 [2022-02-09 07:13:14,639 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072169233] [2022-02-09 07:13:14,640 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:13:14,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2022-02-09 07:13:14,640 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:13:14,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2022-02-09 07:13:14,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=885, Invalid=9417, Unknown=0, NotChecked=0, Total=10302 [2022-02-09 07:13:14,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:14,643 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:13:14,643 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 07:13:14,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:14,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-09 07:13:14,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:13:14,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 07:13:14,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:13:14,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-02-09 07:13:14,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-02-09 07:13:14,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:17,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:17,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 07:13:17,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:13:17,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 07:13:17,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:13:17,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-09 07:13:17,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-09 07:13:17,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-09 07:13:17,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-09 07:13:17,869 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 07:13:17,870 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 07:13:17,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:13:17,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1318910481, now seen corresponding path program 6 times [2022-02-09 07:13:17,870 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:13:17,870 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617175033] [2022-02-09 07:13:17,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:13:17,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:13:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:13:18,650 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 07:13:18,650 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:13:18,650 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617175033] [2022-02-09 07:13:18,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617175033] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:13:18,650 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910881505] [2022-02-09 07:13:18,650 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-09 07:13:18,651 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:13:18,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:13:18,652 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 07:13:18,679 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 07:13:18,730 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2022-02-09 07:13:18,730 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 07:13:18,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 73 conjunts are in the unsatisfiable core [2022-02-09 07:13:18,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:13:20,536 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 07:13:20,536 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:13:22,975 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 07:13:22,975 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910881505] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:13:22,975 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:13:22,975 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 44, 39] total 113 [2022-02-09 07:13:22,975 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147748744] [2022-02-09 07:13:22,976 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:13:22,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 113 states [2022-02-09 07:13:22,976 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:13:22,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2022-02-09 07:13:22,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=897, Invalid=11759, Unknown=0, NotChecked=0, Total=12656 [2022-02-09 07:13:22,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:22,979 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:13:22,980 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 07:13:22,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:22,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-09 07:13:22,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:13:22,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 07:13:22,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:13:22,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-02-09 07:13:22,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-02-09 07:13:22,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-02-09 07:13:22,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:26,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:26,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 07:13:26,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:13:26,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 07:13:26,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:13:26,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-09 07:13:26,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-09 07:13:26,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-09 07:13:26,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-02-09 07:13:26,887 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 07:13:27,061 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 07:13:27,062 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 07:13:27,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:13:27,063 INFO L85 PathProgramCache]: Analyzing trace with hash 130067901, now seen corresponding path program 7 times [2022-02-09 07:13:27,063 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:13:27,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561246075] [2022-02-09 07:13:27,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:13:27,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:13:27,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:13:28,075 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 07:13:28,076 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:13:28,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561246075] [2022-02-09 07:13:28,076 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561246075] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:13:28,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273382760] [2022-02-09 07:13:28,076 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-09 07:13:28,076 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:13:28,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:13:28,077 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 07:13:28,079 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 07:13:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:13:28,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 87 conjunts are in the unsatisfiable core [2022-02-09 07:13:28,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:13:30,350 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 07:13:30,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:13:33,694 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 07:13:33,694 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273382760] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:13:33,694 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:13:33,695 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 52, 45] total 134 [2022-02-09 07:13:33,695 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815276658] [2022-02-09 07:13:33,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:13:33,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 134 states [2022-02-09 07:13:33,696 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:13:33,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 134 interpolants. [2022-02-09 07:13:33,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1182, Invalid=16640, Unknown=0, NotChecked=0, Total=17822 [2022-02-09 07:13:33,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:33,701 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:13:33,701 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 07:13:33,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:33,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-09 07:13:33,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:13:33,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 07:13:33,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:13:33,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-02-09 07:13:33,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-02-09 07:13:33,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-02-09 07:13:33,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2022-02-09 07:13:33,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:38,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:38,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 07:13:38,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:13:38,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 07:13:38,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:13:38,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-09 07:13:38,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-09 07:13:38,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-09 07:13:38,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-02-09 07:13:38,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2022-02-09 07:13:38,328 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 07:13:38,509 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 07:13:38,510 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 07:13:38,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:13:38,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1700335735, now seen corresponding path program 8 times [2022-02-09 07:13:38,511 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:13:38,511 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283812778] [2022-02-09 07:13:38,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:13:38,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:13:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:13:39,784 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 07:13:39,784 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:13:39,784 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283812778] [2022-02-09 07:13:39,784 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283812778] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:13:39,784 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805072523] [2022-02-09 07:13:39,785 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 07:13:39,785 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:13:39,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:13:39,786 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 07:13:39,786 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 07:13:39,854 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 07:13:39,855 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 07:13:39,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 101 conjunts are in the unsatisfiable core [2022-02-09 07:13:39,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:13:42,782 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 07:13:42,783 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:13:46,725 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 07:13:46,725 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805072523] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:13:46,725 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:13:46,725 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 60, 51] total 155 [2022-02-09 07:13:46,725 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021166817] [2022-02-09 07:13:46,726 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:13:46,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 155 states [2022-02-09 07:13:46,726 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:13:46,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 155 interpolants. [2022-02-09 07:13:46,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1528, Invalid=22342, Unknown=0, NotChecked=0, Total=23870 [2022-02-09 07:13:46,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:46,729 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:13:46,730 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 07:13:46,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:46,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-09 07:13:46,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:13:46,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 07:13:46,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:13:46,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-02-09 07:13:46,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-02-09 07:13:46,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-02-09 07:13:46,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2022-02-09 07:13:46,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 141 states. [2022-02-09 07:13:46,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:54,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:54,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 07:13:54,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:13:54,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 07:13:54,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:13:54,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-09 07:13:54,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-09 07:13:54,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-09 07:13:54,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-02-09 07:13:54,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2022-02-09 07:13:54,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2022-02-09 07:13:54,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-09 07:13:54,874 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 07:13:54,874 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 07:13:54,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:13:54,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1066040081, now seen corresponding path program 9 times [2022-02-09 07:13:54,875 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:13:54,875 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455171306] [2022-02-09 07:13:54,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:13:54,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:13:54,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:13:55,138 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 07:13:55,138 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:13:55,138 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455171306] [2022-02-09 07:13:55,138 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455171306] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:13:55,138 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754202223] [2022-02-09 07:13:55,138 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 07:13:55,139 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:13:55,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:13:55,141 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 07:13:55,142 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 07:13:55,228 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2022-02-09 07:13:55,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 07:13:55,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 43 conjunts are in the unsatisfiable core [2022-02-09 07:13:55,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:13:55,731 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 07:13:55,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:13:56,382 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 07:13:56,382 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754202223] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:13:56,382 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:13:56,382 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 20, 15] total 27 [2022-02-09 07:13:56,383 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108207764] [2022-02-09 07:13:56,383 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:13:56,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-09 07:13:56,383 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:13:56,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-09 07:13:56,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=516, Unknown=0, NotChecked=0, Total=702 [2022-02-09 07:13:56,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:56,384 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:13:56,384 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 07:13:56,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:56,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-09 07:13:56,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:13:56,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 07:13:56,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:13:56,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-02-09 07:13:56,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-02-09 07:13:56,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-02-09 07:13:56,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2022-02-09 07:13:56,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 141 states. [2022-02-09 07:13:56,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 189 states. [2022-02-09 07:13:56,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:56,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:13:56,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 07:13:56,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:13:56,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 07:13:56,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:13:56,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-09 07:13:56,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-09 07:13:56,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-09 07:13:56,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-02-09 07:13:56,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2022-02-09 07:13:56,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2022-02-09 07:13:56,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-09 07:13:56,532 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-02-09 07:13:56,725 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 07:13:56,726 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 07:13:56,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:13:56,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1930365925, now seen corresponding path program 10 times [2022-02-09 07:13:56,726 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:13:56,726 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249030510] [2022-02-09 07:13:56,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:13:56,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:13:56,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:13:58,494 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 07:13:58,494 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:13:58,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249030510] [2022-02-09 07:13:58,495 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249030510] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:13:58,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183309376] [2022-02-09 07:13:58,495 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-09 07:13:58,495 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:13:58,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:13:58,496 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 07:13:58,496 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 07:13:58,581 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-09 07:13:58,581 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 07:13:58,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 124 conjunts are in the unsatisfiable core [2022-02-09 07:13:58,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:14:02,963 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 07:14:02,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:14:08,273 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 07:14:08,274 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183309376] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:14:08,274 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:14:08,274 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 74, 70] total 201 [2022-02-09 07:14:08,274 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646899287] [2022-02-09 07:14:08,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:14:08,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 201 states [2022-02-09 07:14:08,275 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:14:08,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 201 interpolants. [2022-02-09 07:14:08,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4338, Invalid=35862, Unknown=0, NotChecked=0, Total=40200 [2022-02-09 07:14:08,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:14:08,278 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:14:08,278 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 07:14:08,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:14:08,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-09 07:14:08,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:14:08,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 07:14:08,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:14:08,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-02-09 07:14:08,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-02-09 07:14:08,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-02-09 07:14:08,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2022-02-09 07:14:08,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 141 states. [2022-02-09 07:14:08,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 189 states. [2022-02-09 07:14:08,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-02-09 07:14:08,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:14:15,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:14:15,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 07:14:15,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:14:15,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 07:14:15,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:14:15,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-09 07:14:15,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-09 07:14:15,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-09 07:14:15,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-02-09 07:14:15,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2022-02-09 07:14:15,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2022-02-09 07:14:15,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-09 07:14:15,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2022-02-09 07:14:15,020 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 07:14:15,202 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 07:14:15,202 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 07:14:15,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 07:14:15,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1509475365, now seen corresponding path program 11 times [2022-02-09 07:14:15,203 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 07:14:15,203 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527828547] [2022-02-09 07:14:15,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 07:14:15,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 07:14:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 07:14:17,336 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 07:14:17,337 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 07:14:17,337 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527828547] [2022-02-09 07:14:17,337 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527828547] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 07:14:17,337 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286266064] [2022-02-09 07:14:17,337 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-09 07:14:17,337 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 07:14:17,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 07:14:17,338 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 07:14:17,339 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 07:14:17,421 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 20 check-sat command(s) [2022-02-09 07:14:17,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 07:14:17,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 138 conjunts are in the unsatisfiable core [2022-02-09 07:14:17,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 07:14:22,137 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 07:14:22,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 07:14:29,162 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 07:14:29,162 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286266064] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 07:14:29,162 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 07:14:29,162 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 82, 70] total 216 [2022-02-09 07:14:29,162 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734757523] [2022-02-09 07:14:29,162 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 07:14:29,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 216 states [2022-02-09 07:14:29,163 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 07:14:29,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 216 interpolants. [2022-02-09 07:14:29,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3204, Invalid=43236, Unknown=0, NotChecked=0, Total=46440 [2022-02-09 07:14:29,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:14:29,166 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 07:14:29,167 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 07:14:29,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:14:29,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-09 07:14:29,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:14:29,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-02-09 07:14:29,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-09 07:14:29,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-02-09 07:14:29,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-02-09 07:14:29,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-02-09 07:14:29,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2022-02-09 07:14:29,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 141 states. [2022-02-09 07:14:29,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 189 states. [2022-02-09 07:14:29,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-02-09 07:14:29,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 178 states. [2022-02-09 07:14:29,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:18:09,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 07:18:09,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 07:18:09,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 07:18:09,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-09 07:18:09,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-09 07:18:09,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-09 07:18:09,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2022-02-09 07:18:09,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 206 states. [2022-02-09 07:18:09,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 501 states. [2022-02-09 07:18:09,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 622 states. [2022-02-09 07:18:09,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 745 states. [2022-02-09 07:18:09,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-09 07:18:09,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 602 states. [2022-02-09 07:18:09,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 891 states. [2022-02-09 07:18:09,958 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-02-09 07:18:09,958 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-09 07:18:09,958 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-09 07:18:09,987 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 07:18:10,161 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 07:18:10,168 INFO L732 BasicCegarLoop]: Path program histogram: [11, 1, 1, 1] [2022-02-09 07:18:10,169 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-09 07:18:10,169 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-09 07:18:10,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 07:18:10 BasicIcfg [2022-02-09 07:18:10,171 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-09 07:18:10,171 INFO L158 Benchmark]: Toolchain (without parser) took 318458.34ms. Allocated memory was 187.7MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 135.9MB in the beginning and 923.3MB in the end (delta: -787.4MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2022-02-09 07:18:10,171 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 187.7MB. Free memory is still 152.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 07:18:10,172 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.04ms. Allocated memory was 187.7MB in the beginning and 261.1MB in the end (delta: 73.4MB). Free memory was 135.7MB in the beginning and 234.4MB in the end (delta: -98.7MB). Peak memory consumption was 12.2MB. Max. memory is 8.0GB. [2022-02-09 07:18:10,172 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.94ms. Allocated memory is still 261.1MB. Free memory was 234.4MB in the beginning and 232.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-09 07:18:10,172 INFO L158 Benchmark]: Boogie Preprocessor took 30.40ms. Allocated memory is still 261.1MB. Free memory was 232.7MB in the beginning and 231.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 07:18:10,172 INFO L158 Benchmark]: RCFGBuilder took 418.59ms. Allocated memory is still 261.1MB. Free memory was 231.2MB in the beginning and 216.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-02-09 07:18:10,172 INFO L158 Benchmark]: TraceAbstraction took 317700.20ms. Allocated memory was 261.1MB in the beginning and 1.9GB in the end (delta: 1.6GB). Free memory was 216.6MB in the beginning and 923.3MB in the end (delta: -706.7MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2022-02-09 07:18:10,173 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 187.7MB. Free memory is still 152.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 265.04ms. Allocated memory was 187.7MB in the beginning and 261.1MB in the end (delta: 73.4MB). Free memory was 135.7MB in the beginning and 234.4MB in the end (delta: -98.7MB). Peak memory consumption was 12.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.94ms. Allocated memory is still 261.1MB. Free memory was 234.4MB in the beginning and 232.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.40ms. Allocated memory is still 261.1MB. Free memory was 232.7MB in the beginning and 231.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 418.59ms. Allocated memory is still 261.1MB. Free memory was 231.2MB in the beginning and 216.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 317700.20ms. Allocated memory was 261.1MB in the beginning and 1.9GB in the end (delta: 1.6GB). Free memory was 216.6MB in the beginning and 923.3MB in the end (delta: -706.7MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 317720, positive: 242365, positive conditional: 242365, positive unconditional: 0, negative: 75355, negative conditional: 75355, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 242617, positive: 242365, positive conditional: 242365, positive unconditional: 0, negative: 252, negative conditional: 252, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 242617, positive: 242365, positive conditional: 242365, positive unconditional: 0, negative: 252, negative conditional: 252, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 245903, positive: 242365, positive conditional: 242311, positive unconditional: 54, negative: 3538, negative conditional: 3286, negative unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 245903, positive: 242365, positive conditional: 166197, positive unconditional: 76168, negative: 3538, negative conditional: 3038, negative unconditional: 500, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 245903, positive: 242365, positive conditional: 166197, positive unconditional: 76168, negative: 3538, negative conditional: 3038, negative unconditional: 500, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7470, positive: 7398, positive conditional: 7278, positive unconditional: 120, negative: 72, negative conditional: 71, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7470, positive: 7258, positive conditional: 0, positive unconditional: 7258, negative: 212, negative conditional: 0, negative unconditional: 212, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 212, positive: 140, positive conditional: 140, positive unconditional: 0, negative: 72, negative conditional: 71, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 466, positive: 325, positive conditional: 325, positive unconditional: 0, negative: 141, negative conditional: 139, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 245903, positive: 234967, positive conditional: 158919, positive unconditional: 76048, negative: 3466, negative conditional: 2967, negative unconditional: 499, unknown: 7470, unknown conditional: 7349, unknown unconditional: 121] , Statistics on independence cache: Total cache size (in pairs): 7470, Positive cache size: 7398, Positive conditional cache size: 7278, Positive unconditional cache size: 120, Negative cache size: 72, Negative conditional cache size: 71, Negative unconditional cache size: 1, Eliminated conditions: 76362, Maximal queried relation: 13, Independence queries for same thread: 75103 - 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 with 1 thread instances CFG has 5 procedures, 98 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 317.6s, OverallIterations: 14, TraceHistogramMax: 0, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 253.5s, 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, 60.0s 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 07:18:10,198 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 07:18:10,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...