/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -s ../../../trunk/examples/settings/gemcutter/SleepMap-ConcreteSmt-VarAbsGlobalSmt.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-min-max-dec.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dpor-95ec559 [2023-01-11 13:13:39,538 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-11 13:13:39,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-11 13:13:39,563 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-11 13:13:39,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-11 13:13:39,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-11 13:13:39,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-11 13:13:39,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-11 13:13:39,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-11 13:13:39,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-11 13:13:39,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-11 13:13:39,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-11 13:13:39,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-11 13:13:39,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-11 13:13:39,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-11 13:13:39,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-11 13:13:39,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-11 13:13:39,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-11 13:13:39,576 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-11 13:13:39,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-11 13:13:39,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-11 13:13:39,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-11 13:13:39,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-11 13:13:39,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-11 13:13:39,583 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-11 13:13:39,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-11 13:13:39,584 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-11 13:13:39,585 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-11 13:13:39,585 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-11 13:13:39,586 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-11 13:13:39,586 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-11 13:13:39,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-11 13:13:39,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-11 13:13:39,588 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-11 13:13:39,589 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-11 13:13:39,589 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-11 13:13:39,590 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-11 13:13:39,590 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-11 13:13:39,591 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-11 13:13:39,592 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-11 13:13:39,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-11 13:13:39,593 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/SleepMap-ConcreteSmt-VarAbsGlobalSmt.epf [2023-01-11 13:13:39,616 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-11 13:13:39,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-11 13:13:39,618 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-01-11 13:13:39,618 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-01-11 13:13:39,619 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-11 13:13:39,619 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-11 13:13:39,620 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-11 13:13:39,620 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-11 13:13:39,620 INFO L138 SettingsManager]: * Use SBE=true [2023-01-11 13:13:39,620 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-11 13:13:39,621 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-11 13:13:39,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-11 13:13:39,621 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-11 13:13:39,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-11 13:13:39,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-11 13:13:39,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-11 13:13:39,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-11 13:13:39,622 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-11 13:13:39,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-11 13:13:39,622 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-11 13:13:39,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-11 13:13:39,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-11 13:13:39,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-11 13:13:39,622 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-11 13:13:39,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-11 13:13:39,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-11 13:13:39,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-11 13:13:39,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-11 13:13:39,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-11 13:13:39,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-11 13:13:39,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-11 13:13:39,624 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-01-11 13:13:39,624 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-01-11 13:13:39,624 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-01-11 13:13:39,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-01-11 13:13:39,624 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2023-01-11 13:13:39,624 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2023-01-11 13:13:39,624 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-11 13:13:39,625 INFO L138 SettingsManager]: * Number of independence relations to use for POR=2 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2023-01-11 13:13:39,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-11 13:13:39,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-11 13:13:39,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-11 13:13:39,932 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-11 13:13:39,932 INFO L275 PluginConnector]: CDTParser initialized [2023-01-11 13:13:39,933 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-min-max-dec.wvr.c [2023-01-11 13:13:41,345 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-11 13:13:41,547 INFO L351 CDTParser]: Found 1 translation units. [2023-01-11 13:13:41,548 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-dec.wvr.c [2023-01-11 13:13:41,555 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0070f4f07/965924cec582433395f74bcb7556a835/FLAG3e923ab74 [2023-01-11 13:13:41,568 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0070f4f07/965924cec582433395f74bcb7556a835 [2023-01-11 13:13:41,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-11 13:13:41,571 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-11 13:13:41,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-11 13:13:41,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-11 13:13:41,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-11 13:13:41,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:13:41" (1/1) ... [2023-01-11 13:13:41,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@559f6dcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:13:41, skipping insertion in model container [2023-01-11 13:13:41,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:13:41" (1/1) ... [2023-01-11 13:13:41,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-11 13:13:41,605 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-11 13:13:41,789 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-dec.wvr.c[3019,3032] [2023-01-11 13:13:41,796 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-11 13:13:41,807 INFO L203 MainTranslator]: Completed pre-run [2023-01-11 13:13:41,829 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-dec.wvr.c[3019,3032] [2023-01-11 13:13:41,832 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-11 13:13:41,845 WARN L663 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-11 13:13:41,845 WARN L663 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-11 13:13:41,855 INFO L208 MainTranslator]: Completed translation [2023-01-11 13:13:41,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:13:41 WrapperNode [2023-01-11 13:13:41,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-11 13:13:41,856 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-11 13:13:41,857 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-11 13:13:41,857 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-11 13:13:41,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:13:41" (1/1) ... [2023-01-11 13:13:41,881 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:13:41" (1/1) ... [2023-01-11 13:13:41,903 INFO L138 Inliner]: procedures = 26, calls = 63, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 139 [2023-01-11 13:13:41,903 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-11 13:13:41,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-11 13:13:41,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-11 13:13:41,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-11 13:13:41,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:13:41" (1/1) ... [2023-01-11 13:13:41,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:13:41" (1/1) ... [2023-01-11 13:13:41,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:13:41" (1/1) ... [2023-01-11 13:13:41,915 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:13:41" (1/1) ... [2023-01-11 13:13:41,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:13:41" (1/1) ... [2023-01-11 13:13:41,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:13:41" (1/1) ... [2023-01-11 13:13:41,926 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:13:41" (1/1) ... [2023-01-11 13:13:41,927 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:13:41" (1/1) ... [2023-01-11 13:13:41,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-11 13:13:41,930 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-11 13:13:41,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-11 13:13:41,931 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-11 13:13:41,931 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:13:41" (1/1) ... [2023-01-11 13:13:41,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-11 13:13:41,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 13:13:41,972 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) [2023-01-11 13:13:41,973 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 [2023-01-11 13:13:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-11 13:13:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-11 13:13:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-11 13:13:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-11 13:13:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-11 13:13:42,007 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-11 13:13:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-11 13:13:42,007 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-11 13:13:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-01-11 13:13:42,007 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-01-11 13:13:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-01-11 13:13:42,008 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-01-11 13:13:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-11 13:13:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-11 13:13:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-11 13:13:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-11 13:13:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-11 13:13:42,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-11 13:13:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-11 13:13:42,009 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-11 13:13:42,173 INFO L236 CfgBuilder]: Building ICFG [2023-01-11 13:13:42,174 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-11 13:13:42,454 INFO L277 CfgBuilder]: Performing block encoding [2023-01-11 13:13:42,556 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-11 13:13:42,564 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-01-11 13:13:42,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:13:42 BoogieIcfgContainer [2023-01-11 13:13:42,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-11 13:13:42,568 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-11 13:13:42,568 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-11 13:13:42,570 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-11 13:13:42,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 01:13:41" (1/3) ... [2023-01-11 13:13:42,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d388a8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:13:42, skipping insertion in model container [2023-01-11 13:13:42,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:13:41" (2/3) ... [2023-01-11 13:13:42,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d388a8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:13:42, skipping insertion in model container [2023-01-11 13:13:42,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:13:42" (3/3) ... [2023-01-11 13:13:42,572 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-dec.wvr.c [2023-01-11 13:13:42,577 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-01-11 13:13:42,583 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-11 13:13:42,583 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-11 13:13:42,583 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-11 13:13:42,669 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-01-11 13:13:42,717 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 13:13:42,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 13:13:42,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 13:13:42,723 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) [2023-01-11 13:13:42,735 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 [2023-01-11 13:13:42,763 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 13:13:42,770 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 13:13:42,771 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 13:13:42,771 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 13:13:42,776 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-01-11 13:13:42,781 INFO L357 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, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3fd67171, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 13:13:42,781 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 13:13:44,652 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-11 13:13:44,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 13:13:44,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1595382173, now seen corresponding path program 1 times [2023-01-11 13:13:44,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 13:13:44,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237775851] [2023-01-11 13:13:44,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 13:13:44,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 13:13:44,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 13:13:44,980 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-11 13:13:44,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 13:13:44,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237775851] [2023-01-11 13:13:44,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237775851] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 13:13:44,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 13:13:44,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-11 13:13:44,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484470344] [2023-01-11 13:13:44,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 13:13:44,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-11 13:13:44,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 13:13:45,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-11 13:13:45,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-11 13:13:45,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 13:13:45,020 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 13:13:45,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 65.0) internal successors, (130), 2 states have internal predecessors, (130), 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) [2023-01-11 13:13:45,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 13:13:45,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 13:13:45,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-11 13:13:45,893 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-11 13:13:45,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 13:13:45,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1429522272, now seen corresponding path program 1 times [2023-01-11 13:13:45,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 13:13:45,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554423377] [2023-01-11 13:13:45,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 13:13:45,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 13:13:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 13:13:46,341 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-11 13:13:46,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 13:13:46,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554423377] [2023-01-11 13:13:46,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554423377] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-11 13:13:46,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-11 13:13:46,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-01-11 13:13:46,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683049429] [2023-01-11 13:13:46,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-11 13:13:46,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-11 13:13:46,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 13:13:46,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-11 13:13:46,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-01-11 13:13:46,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 13:13:46,350 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 13:13:46,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 7 states have internal predecessors, (126), 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) [2023-01-11 13:13:46,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 13:13:46,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 13:13:47,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 13:13:47,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-11 13:13:47,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-11 13:13:47,334 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-11 13:13:47,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 13:13:47,335 INFO L85 PathProgramCache]: Analyzing trace with hash 2043160323, now seen corresponding path program 1 times [2023-01-11 13:13:47,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 13:13:47,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091702719] [2023-01-11 13:13:47,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 13:13:47,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 13:13:47,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 13:13:48,376 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-11 13:13:48,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 13:13:48,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091702719] [2023-01-11 13:13:48,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091702719] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-11 13:13:48,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775557663] [2023-01-11 13:13:48,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 13:13:48,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-11 13:13:48,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 13:13:48,391 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) [2023-01-11 13:13:48,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-11 13:13:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 13:13:48,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 19 conjunts are in the unsatisfiable core [2023-01-11 13:13:48,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-11 13:13:48,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-01-11 13:13:48,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 37 [2023-01-11 13:13:48,954 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-11 13:13:48,955 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-11 13:13:49,370 INFO L321 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2023-01-11 13:13:49,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 107 treesize of output 58 [2023-01-11 13:13:49,500 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-11 13:13:49,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775557663] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-11 13:13:49,501 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-11 13:13:49,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 10] total 19 [2023-01-11 13:13:49,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039421173] [2023-01-11 13:13:49,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-11 13:13:49,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-01-11 13:13:49,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 13:13:49,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-01-11 13:13:49,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2023-01-11 13:13:49,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 13:13:49,504 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 13:13:49,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.842105263157896) internal successors, (206), 19 states have internal predecessors, (206), 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) [2023-01-11 13:13:49,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 13:13:49,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-11 13:13:49,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 13:13:53,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 13:13:53,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-11 13:13:53,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-01-11 13:13:53,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-01-11 13:13:53,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-01-11 13:13:53,351 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-11 13:13:53,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 13:13:53,352 INFO L85 PathProgramCache]: Analyzing trace with hash -649851101, now seen corresponding path program 2 times [2023-01-11 13:13:53,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 13:13:53,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319673193] [2023-01-11 13:13:53,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 13:13:53,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 13:13:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 13:13:53,718 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-01-11 13:13:53,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 13:13:53,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319673193] [2023-01-11 13:13:53,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319673193] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-11 13:13:53,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889502520] [2023-01-11 13:13:53,719 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-11 13:13:53,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-11 13:13:53,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 13:13:53,721 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) [2023-01-11 13:13:53,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-11 13:13:54,121 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-11 13:13:54,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-11 13:13:54,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 8 conjunts are in the unsatisfiable core [2023-01-11 13:13:54,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-11 13:13:54,276 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-11 13:13:54,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-11 13:13:54,405 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-11 13:13:54,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889502520] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-11 13:13:54,406 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-11 13:13:54,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 21 [2023-01-11 13:13:54,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894707578] [2023-01-11 13:13:54,407 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-11 13:13:54,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-01-11 13:13:54,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 13:13:54,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-01-11 13:13:54,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2023-01-11 13:13:54,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 13:13:54,410 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 13:13:54,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 11.952380952380953) internal successors, (251), 21 states have internal predecessors, (251), 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) [2023-01-11 13:13:54,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 13:13:54,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-11 13:13:54,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2023-01-11 13:13:54,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 13:13:58,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 13:13:58,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-11 13:13:58,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-01-11 13:13:58,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-01-11 13:13:58,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-01-11 13:13:58,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-11 13:13:58,541 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-11 13:13:58,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 13:13:58,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1036820326, now seen corresponding path program 3 times [2023-01-11 13:13:58,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 13:13:58,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87556404] [2023-01-11 13:13:58,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 13:13:58,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 13:13:58,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 13:13:58,853 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 11 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-01-11 13:13:58,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 13:13:58,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87556404] [2023-01-11 13:13:58,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87556404] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-11 13:13:58,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813255077] [2023-01-11 13:13:58,854 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-11 13:13:58,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-11 13:13:58,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 13:13:58,855 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) [2023-01-11 13:13:58,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-01-11 13:13:59,272 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-01-11 13:13:59,273 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-11 13:13:59,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 10 conjunts are in the unsatisfiable core [2023-01-11 13:13:59,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-11 13:13:59,508 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 23 proven. 10 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-01-11 13:13:59,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-11 13:14:00,004 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 10 proven. 23 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-01-11 13:14:00,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813255077] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-11 13:14:00,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-11 13:14:00,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2023-01-11 13:14:00,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671403089] [2023-01-11 13:14:00,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-11 13:14:00,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-01-11 13:14:00,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 13:14:00,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-01-11 13:14:00,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2023-01-11 13:14:00,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 13:14:00,011 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 13:14:00,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.916666666666666) internal successors, (238), 24 states have internal predecessors, (238), 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) [2023-01-11 13:14:00,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 13:14:00,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-11 13:14:00,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2023-01-11 13:14:00,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2023-01-11 13:14:00,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 13:14:03,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 13:14:03,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-11 13:14:03,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-01-11 13:14:03,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-01-11 13:14:03,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-01-11 13:14:03,890 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-01-11 13:14:04,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-11 13:14:04,085 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-11 13:14:04,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 13:14:04,086 INFO L85 PathProgramCache]: Analyzing trace with hash 422133319, now seen corresponding path program 4 times [2023-01-11 13:14:04,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 13:14:04,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113506131] [2023-01-11 13:14:04,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 13:14:04,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 13:14:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 13:14:04,433 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 13 proven. 15 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-01-11 13:14:04,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 13:14:04,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113506131] [2023-01-11 13:14:04,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113506131] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-11 13:14:04,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115864834] [2023-01-11 13:14:04,434 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-01-11 13:14:04,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-11 13:14:04,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 13:14:04,436 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) [2023-01-11 13:14:04,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-01-11 13:14:04,550 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-01-11 13:14:04,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-11 13:14:04,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 14 conjunts are in the unsatisfiable core [2023-01-11 13:14:04,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-11 13:14:04,809 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-01-11 13:14:04,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-11 13:14:05,132 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-01-11 13:14:05,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115864834] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-11 13:14:05,132 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-11 13:14:05,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 34 [2023-01-11 13:14:05,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484532463] [2023-01-11 13:14:05,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-11 13:14:05,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-01-11 13:14:05,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 13:14:05,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-01-11 13:14:05,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=915, Unknown=0, NotChecked=0, Total=1122 [2023-01-11 13:14:05,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 13:14:05,136 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 13:14:05,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 6.5) internal successors, (221), 34 states have internal predecessors, (221), 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) [2023-01-11 13:14:05,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 13:14:05,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-11 13:14:05,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2023-01-11 13:14:05,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2023-01-11 13:14:05,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2023-01-11 13:14:05,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 13:14:09,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 13:14:09,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-11 13:14:09,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-01-11 13:14:09,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-01-11 13:14:09,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-01-11 13:14:09,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-01-11 13:14:09,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-01-11 13:14:09,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-11 13:14:09,945 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-11 13:14:09,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 13:14:09,945 INFO L85 PathProgramCache]: Analyzing trace with hash 975016452, now seen corresponding path program 5 times [2023-01-11 13:14:09,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 13:14:09,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966144830] [2023-01-11 13:14:09,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 13:14:09,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 13:14:09,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-11 13:14:10,335 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 24 proven. 32 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-01-11 13:14:10,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-11 13:14:10,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966144830] [2023-01-11 13:14:10,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966144830] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-11 13:14:10,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884006114] [2023-01-11 13:14:10,336 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-01-11 13:14:10,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-11 13:14:10,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 13:14:10,339 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) [2023-01-11 13:14:10,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-01-11 13:14:10,503 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2023-01-11 13:14:10,504 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-11 13:14:10,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 12 conjunts are in the unsatisfiable core [2023-01-11 13:14:10,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-11 13:14:10,732 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-01-11 13:14:10,733 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-11 13:14:10,972 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-01-11 13:14:10,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884006114] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-11 13:14:10,974 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-11 13:14:10,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 27 [2023-01-11 13:14:10,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619914743] [2023-01-11 13:14:10,974 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-11 13:14:10,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-01-11 13:14:10,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-11 13:14:10,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-01-11 13:14:10,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=610, Unknown=0, NotChecked=0, Total=702 [2023-01-11 13:14:10,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 13:14:10,979 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-11 13:14:10,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 11.0) internal successors, (297), 27 states have internal predecessors, (297), 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) [2023-01-11 13:14:10,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 13:14:10,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-11 13:14:10,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2023-01-11 13:14:10,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2023-01-11 13:14:10,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2023-01-11 13:14:10,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-01-11 13:14:10,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-11 13:14:23,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-11 13:14:23,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-11 13:14:23,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-01-11 13:14:23,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-01-11 13:14:23,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-01-11 13:14:23,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-01-11 13:14:23,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2023-01-11 13:14:23,293 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-01-11 13:14:23,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-11 13:14:23,483 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-11 13:14:23,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-11 13:14:23,484 INFO L85 PathProgramCache]: Analyzing trace with hash 2000421225, now seen corresponding path program 6 times [2023-01-11 13:14:23,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-11 13:14:23,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503407307] [2023-01-11 13:14:23,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-11 13:14:23,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-11 13:14:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2023-01-11 13:28:04,999 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-11 13:28:04,999 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-11 13:28:06,013 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 [2023-01-11 13:28:06,013 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 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown