/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/NewStatesSleep-VarAbsGlobalSmt.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-min-max-inc.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dpor-d6e1636 [2023-01-10 16:16:35,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-10 16:16:35,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-10 16:16:36,022 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-10 16:16:36,023 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-10 16:16:36,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-10 16:16:36,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-10 16:16:36,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-10 16:16:36,032 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-10 16:16:36,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-10 16:16:36,037 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-10 16:16:36,039 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-10 16:16:36,039 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-10 16:16:36,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-10 16:16:36,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-10 16:16:36,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-10 16:16:36,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-10 16:16:36,046 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-10 16:16:36,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-10 16:16:36,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-10 16:16:36,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-10 16:16:36,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-10 16:16:36,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-10 16:16:36,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-10 16:16:36,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-10 16:16:36,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-10 16:16:36,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-10 16:16:36,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-10 16:16:36,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-10 16:16:36,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-10 16:16:36,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-10 16:16:36,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-10 16:16:36,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-10 16:16:36,069 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-10 16:16:36,069 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-10 16:16:36,069 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-10 16:16:36,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-10 16:16:36,070 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-10 16:16:36,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-10 16:16:36,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-10 16:16:36,071 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-10 16:16:36,073 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSmt.epf [2023-01-10 16:16:36,099 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-10 16:16:36,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-10 16:16:36,100 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-01-10 16:16:36,100 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-01-10 16:16:36,101 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-10 16:16:36,101 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-10 16:16:36,102 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-10 16:16:36,102 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-10 16:16:36,102 INFO L138 SettingsManager]: * Use SBE=true [2023-01-10 16:16:36,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-10 16:16:36,103 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-10 16:16:36,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-10 16:16:36,103 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-10 16:16:36,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-10 16:16:36,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-10 16:16:36,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-10 16:16:36,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-10 16:16:36,104 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-10 16:16:36,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-10 16:16:36,104 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-10 16:16:36,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-10 16:16:36,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-10 16:16:36,104 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-10 16:16:36,104 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-10 16:16:36,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-10 16:16:36,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-10 16:16:36,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-10 16:16:36,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-10 16:16:36,105 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-10 16:16:36,106 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-10 16:16:36,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-10 16:16:36,106 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-01-10 16:16:36,106 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-01-10 16:16:36,106 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-01-10 16:16:36,106 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-01-10 16:16:36,106 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2023-01-10 16:16:36,107 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2023-01-10 16:16:36,107 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2023-01-10 16:16:36,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-10 16:16:36,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-10 16:16:36,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-10 16:16:36,342 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-10 16:16:36,342 INFO L275 PluginConnector]: CDTParser initialized [2023-01-10 16:16:36,343 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-min-max-inc.wvr.c [2023-01-10 16:16:37,419 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-10 16:16:37,606 INFO L351 CDTParser]: Found 1 translation units. [2023-01-10 16:16:37,606 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc.wvr.c [2023-01-10 16:16:37,613 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59f15bc12/7836abd849d64b22bde0a928d7148702/FLAG042df10fb [2023-01-10 16:16:37,626 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59f15bc12/7836abd849d64b22bde0a928d7148702 [2023-01-10 16:16:37,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-10 16:16:37,631 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-10 16:16:37,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-10 16:16:37,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-10 16:16:37,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-10 16:16:37,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 04:16:37" (1/1) ... [2023-01-10 16:16:37,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b93efaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:16:37, skipping insertion in model container [2023-01-10 16:16:37,639 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 04:16:37" (1/1) ... [2023-01-10 16:16:37,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-10 16:16:37,668 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-10 16:16:37,793 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-inc.wvr.c[3018,3031] [2023-01-10 16:16:37,800 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-10 16:16:37,807 INFO L203 MainTranslator]: Completed pre-run [2023-01-10 16:16:37,832 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-inc.wvr.c[3018,3031] [2023-01-10 16:16:37,835 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-10 16:16:37,842 WARN L663 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-10 16:16:37,842 WARN L663 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-10 16:16:37,847 INFO L208 MainTranslator]: Completed translation [2023-01-10 16:16:37,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:16:37 WrapperNode [2023-01-10 16:16:37,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-10 16:16:37,848 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-10 16:16:37,848 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-10 16:16:37,848 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-10 16:16:37,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:16:37" (1/1) ... [2023-01-10 16:16:37,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:16:37" (1/1) ... [2023-01-10 16:16:37,878 INFO L138 Inliner]: procedures = 26, calls = 63, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 139 [2023-01-10 16:16:37,878 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-10 16:16:37,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-10 16:16:37,879 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-10 16:16:37,879 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-10 16:16:37,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:16:37" (1/1) ... [2023-01-10 16:16:37,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:16:37" (1/1) ... [2023-01-10 16:16:37,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:16:37" (1/1) ... [2023-01-10 16:16:37,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:16:37" (1/1) ... [2023-01-10 16:16:37,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:16:37" (1/1) ... [2023-01-10 16:16:37,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:16:37" (1/1) ... [2023-01-10 16:16:37,900 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:16:37" (1/1) ... [2023-01-10 16:16:37,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:16:37" (1/1) ... [2023-01-10 16:16:37,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-10 16:16:37,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-10 16:16:37,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-10 16:16:37,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-10 16:16:37,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:16:37" (1/1) ... [2023-01-10 16:16:37,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-10 16:16:37,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 16:16:37,946 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) [2023-01-10 16:16:37,968 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 [2023-01-10 16:16:37,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-10 16:16:37,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-10 16:16:37,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-10 16:16:37,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-10 16:16:37,987 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-10 16:16:37,987 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-10 16:16:37,987 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-10 16:16:37,987 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-10 16:16:37,987 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-01-10 16:16:37,988 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-01-10 16:16:37,988 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-01-10 16:16:37,988 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-01-10 16:16:37,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-10 16:16:37,988 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-10 16:16:37,988 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-10 16:16:37,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-10 16:16:37,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-10 16:16:37,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-10 16:16:37,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-10 16:16:37,990 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-10 16:16:38,140 INFO L236 CfgBuilder]: Building ICFG [2023-01-10 16:16:38,142 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-10 16:16:38,421 INFO L277 CfgBuilder]: Performing block encoding [2023-01-10 16:16:38,496 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-10 16:16:38,496 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-01-10 16:16:38,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 04:16:38 BoogieIcfgContainer [2023-01-10 16:16:38,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-10 16:16:38,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-10 16:16:38,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-10 16:16:38,511 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-10 16:16:38,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 04:16:37" (1/3) ... [2023-01-10 16:16:38,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c674570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 04:16:38, skipping insertion in model container [2023-01-10 16:16:38,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:16:37" (2/3) ... [2023-01-10 16:16:38,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c674570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 04:16:38, skipping insertion in model container [2023-01-10 16:16:38,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 04:16:38" (3/3) ... [2023-01-10 16:16:38,514 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc.wvr.c [2023-01-10 16:16:38,520 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-01-10 16:16:38,528 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-10 16:16:38,529 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-10 16:16:38,529 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-10 16:16:38,617 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-01-10 16:16:38,661 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 16:16:38,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 16:16:38,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 16:16:38,665 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) [2023-01-10 16:16:38,667 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 [2023-01-10 16:16:38,728 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 16:16:38,735 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-01-10 16:16:38,742 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;@6800733, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 16:16:38,743 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 16:16:39,284 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 16:16:39,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 16:16:39,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1795656740, now seen corresponding path program 1 times [2023-01-10 16:16:39,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 16:16:39,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418077810] [2023-01-10 16:16:39,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 16:16:39,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 16:16:39,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 16:16:39,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 16:16:39,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 16:16:39,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418077810] [2023-01-10 16:16:39,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418077810] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 16:16:39,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 16:16:39,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-10 16:16:39,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12574201] [2023-01-10 16:16:39,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 16:16:39,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-10 16:16:39,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 16:16:39,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-10 16:16:39,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-10 16:16:39,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:39,584 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 16:16:39,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 57.5) internal successors, (115), 2 states have internal predecessors, (115), 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) [2023-01-10 16:16:39,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:39,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:39,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-10 16:16:39,684 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 16:16:39,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 16:16:39,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1024857677, now seen corresponding path program 1 times [2023-01-10 16:16:39,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 16:16:39,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421601621] [2023-01-10 16:16:39,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 16:16:39,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 16:16:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 16:16:40,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 16:16:40,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 16:16:40,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421601621] [2023-01-10 16:16:40,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421601621] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 16:16:40,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 16:16:40,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-10 16:16:40,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615337814] [2023-01-10 16:16:40,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 16:16:40,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-10 16:16:40,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 16:16:40,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-10 16:16:40,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-01-10 16:16:40,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:40,285 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 16:16:40,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 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) [2023-01-10 16:16:40,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:40,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:40,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:40,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 16:16:40,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-10 16:16:40,514 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 16:16:40,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 16:16:40,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1149916922, now seen corresponding path program 1 times [2023-01-10 16:16:40,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 16:16:40,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094840069] [2023-01-10 16:16:40,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 16:16:40,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 16:16:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 16:16:40,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 16:16:40,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 16:16:40,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094840069] [2023-01-10 16:16:40,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094840069] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 16:16:40,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 16:16:40,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-01-10 16:16:40,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603953508] [2023-01-10 16:16:40,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 16:16:40,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-10 16:16:40,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 16:16:40,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-10 16:16:40,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-01-10 16:16:40,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:40,771 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 16:16:40,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 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) [2023-01-10 16:16:40,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:40,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 16:16:40,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:40,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:40,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 16:16:40,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:40,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-10 16:16:40,954 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 16:16:40,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 16:16:40,955 INFO L85 PathProgramCache]: Analyzing trace with hash -811641251, now seen corresponding path program 1 times [2023-01-10 16:16:40,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 16:16:40,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942952198] [2023-01-10 16:16:40,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 16:16:40,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 16:16:40,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 16:16:41,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-10 16:16:41,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 16:16:41,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942952198] [2023-01-10 16:16:41,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942952198] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 16:16:41,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128216110] [2023-01-10 16:16:41,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 16:16:41,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 16:16:41,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 16:16:41,203 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) [2023-01-10 16:16:41,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-10 16:16:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 16:16:41,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 6 conjunts are in the unsatisfiable core [2023-01-10 16:16:41,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 16:16:41,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-10 16:16:41,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 16:16:41,690 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-10 16:16:41,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128216110] provided 1 perfect and 1 imperfect interpolant sequences [2023-01-10 16:16:41,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-01-10 16:16:41,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2023-01-10 16:16:41,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043408500] [2023-01-10 16:16:41,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 16:16:41,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-10 16:16:41,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 16:16:41,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-10 16:16:41,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-01-10 16:16:41,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:41,694 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 16:16:41,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 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) [2023-01-10 16:16:41,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:41,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 16:16:41,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:41,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:41,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:41,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 16:16:41,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:41,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:41,922 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-01-10 16:16:42,118 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,SelfDestructingSolverStorable3 [2023-01-10 16:16:42,119 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 16:16:42,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 16:16:42,119 INFO L85 PathProgramCache]: Analyzing trace with hash 91451200, now seen corresponding path program 1 times [2023-01-10 16:16:42,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 16:16:42,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702721906] [2023-01-10 16:16:42,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 16:16:42,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 16:16:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 16:16:42,310 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-10 16:16:42,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 16:16:42,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702721906] [2023-01-10 16:16:42,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702721906] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 16:16:42,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420553580] [2023-01-10 16:16:42,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 16:16:42,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 16:16:42,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 16:16:42,312 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) [2023-01-10 16:16:42,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-10 16:16:42,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 16:16:42,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 6 conjunts are in the unsatisfiable core [2023-01-10 16:16:42,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 16:16:42,567 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-10 16:16:42,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 16:16:42,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-10 16:16:42,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420553580] provided 1 perfect and 1 imperfect interpolant sequences [2023-01-10 16:16:42,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-01-10 16:16:42,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2023-01-10 16:16:42,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877076644] [2023-01-10 16:16:42,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 16:16:42,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-10 16:16:42,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 16:16:42,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-10 16:16:42,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-01-10 16:16:42,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:42,744 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 16:16:42,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 7 states have internal predecessors, (129), 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) [2023-01-10 16:16:42,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:42,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 16:16:42,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:42,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:42,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:42,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:42,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 16:16:42,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:42,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:42,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:42,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-01-10 16:16:43,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 16:16:43,120 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 16:16:43,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 16:16:43,121 INFO L85 PathProgramCache]: Analyzing trace with hash -663992659, now seen corresponding path program 1 times [2023-01-10 16:16:43,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 16:16:43,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203169489] [2023-01-10 16:16:43,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 16:16:43,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 16:16:43,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 16:16:43,923 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-10 16:16:43,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 16:16:43,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203169489] [2023-01-10 16:16:43,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203169489] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 16:16:43,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479527120] [2023-01-10 16:16:43,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 16:16:43,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 16:16:43,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 16:16:43,932 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) [2023-01-10 16:16:43,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-01-10 16:16:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 16:16:44,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 26 conjunts are in the unsatisfiable core [2023-01-10 16:16:44,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 16:16:44,370 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 [2023-01-10 16:16:44,433 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-10 16:16:44,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 16:16:44,894 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-10 16:16:44,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479527120] provided 1 perfect and 1 imperfect interpolant sequences [2023-01-10 16:16:44,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-01-10 16:16:44,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [8, 16] total 26 [2023-01-10 16:16:44,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351047297] [2023-01-10 16:16:44,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 16:16:44,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-01-10 16:16:44,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 16:16:44,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-01-10 16:16:44,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=544, Unknown=0, NotChecked=0, Total=650 [2023-01-10 16:16:44,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:44,896 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 16:16:44,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 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) [2023-01-10 16:16:44,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:44,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 16:16:44,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:44,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:44,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:44,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:45,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:45,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 16:16:45,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:45,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:45,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:45,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-10 16:16:45,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-01-10 16:16:46,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 16:16:46,145 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 16:16:46,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 16:16:46,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1827637569, now seen corresponding path program 2 times [2023-01-10 16:16:46,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 16:16:46,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127178497] [2023-01-10 16:16:46,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 16:16:46,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 16:16:46,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 16:16:46,423 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-01-10 16:16:46,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 16:16:46,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127178497] [2023-01-10 16:16:46,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127178497] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 16:16:46,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576030859] [2023-01-10 16:16:46,424 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-10 16:16:46,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 16:16:46,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 16:16:46,425 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) [2023-01-10 16:16:46,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-01-10 16:16:46,635 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-10 16:16:46,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 16:16:46,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 10 conjunts are in the unsatisfiable core [2023-01-10 16:16:46,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 16:16:46,793 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-01-10 16:16:46,793 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 16:16:46,991 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-01-10 16:16:46,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576030859] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 16:16:46,991 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 16:16:46,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2023-01-10 16:16:46,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168036931] [2023-01-10 16:16:46,991 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 16:16:46,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-01-10 16:16:46,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 16:16:46,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-01-10 16:16:46,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2023-01-10 16:16:46,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:46,994 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 16:16:46,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.791666666666667) internal successors, (187), 24 states have internal predecessors, (187), 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) [2023-01-10 16:16:46,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:46,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 16:16:46,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:46,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:46,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:46,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-01-10 16:16:46,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:47,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:47,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 16:16:47,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:47,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:47,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:47,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-10 16:16:47,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-01-10 16:16:47,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-01-10 16:16:48,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 16:16:48,034 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 16:16:48,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 16:16:48,034 INFO L85 PathProgramCache]: Analyzing trace with hash -528128476, now seen corresponding path program 3 times [2023-01-10 16:16:48,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 16:16:48,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653249796] [2023-01-10 16:16:48,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 16:16:48,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 16:16:48,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 16:16:48,307 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-01-10 16:16:48,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 16:16:48,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653249796] [2023-01-10 16:16:48,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653249796] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 16:16:48,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106159177] [2023-01-10 16:16:48,343 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-10 16:16:48,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 16:16:48,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 16:16:48,349 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) [2023-01-10 16:16:48,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-01-10 16:16:48,564 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-01-10 16:16:48,565 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 16:16:48,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 18 conjunts are in the unsatisfiable core [2023-01-10 16:16:48,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 16:16:48,894 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-01-10 16:16:48,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 16:16:49,372 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-01-10 16:16:49,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106159177] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 16:16:49,373 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 16:16:49,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 27 [2023-01-10 16:16:49,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115593818] [2023-01-10 16:16:49,373 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 16:16:49,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-01-10 16:16:49,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 16:16:49,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-01-10 16:16:49,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=594, Unknown=0, NotChecked=0, Total=702 [2023-01-10 16:16:49,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:49,375 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 16:16:49,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 14.481481481481481) internal successors, (391), 27 states have internal predecessors, (391), 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) [2023-01-10 16:16:49,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:49,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 16:16:49,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:49,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:49,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:49,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-01-10 16:16:49,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-01-10 16:16:49,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:53,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:53,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 16:16:53,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:53,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:53,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:53,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-10 16:16:53,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-01-10 16:16:53,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-01-10 16:16:53,486 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-01-10 16:16:53,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 16:16:53,681 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 16:16:53,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 16:16:53,682 INFO L85 PathProgramCache]: Analyzing trace with hash 250670342, now seen corresponding path program 4 times [2023-01-10 16:16:53,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 16:16:53,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519339292] [2023-01-10 16:16:53,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 16:16:53,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 16:16:53,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 16:16:54,122 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 16 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-01-10 16:16:54,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 16:16:54,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519339292] [2023-01-10 16:16:54,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519339292] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 16:16:54,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753101343] [2023-01-10 16:16:54,123 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-01-10 16:16:54,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 16:16:54,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 16:16:54,125 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) [2023-01-10 16:16:54,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-01-10 16:16:54,244 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-01-10 16:16:54,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 16:16:54,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 14 conjunts are in the unsatisfiable core [2023-01-10 16:16:54,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 16:16:54,586 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 25 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-01-10 16:16:54,587 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 16:16:54,952 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-01-10 16:16:54,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753101343] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 16:16:54,952 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 16:16:54,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 34 [2023-01-10 16:16:54,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497900157] [2023-01-10 16:16:54,953 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 16:16:54,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-01-10 16:16:54,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 16:16:54,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-01-10 16:16:54,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=915, Unknown=0, NotChecked=0, Total=1122 [2023-01-10 16:16:54,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:54,955 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 16:16:54,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 6.794117647058823) internal successors, (231), 34 states have internal predecessors, (231), 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) [2023-01-10 16:16:54,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:54,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 16:16:54,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:54,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:54,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:54,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-01-10 16:16:54,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-01-10 16:16:54,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2023-01-10 16:16:54,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:56,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:56,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 16:16:56,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:56,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:56,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:56,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-10 16:16:56,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-01-10 16:16:56,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-01-10 16:16:56,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-01-10 16:16:56,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-01-10 16:16:57,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 16:16:57,173 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 16:16:57,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 16:16:57,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1901885225, now seen corresponding path program 5 times [2023-01-10 16:16:57,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 16:16:57,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740263220] [2023-01-10 16:16:57,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 16:16:57,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 16:16:57,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 16:16:57,547 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 2 proven. 32 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-01-10 16:16:57,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 16:16:57,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740263220] [2023-01-10 16:16:57,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740263220] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 16:16:57,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304197734] [2023-01-10 16:16:57,548 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-01-10 16:16:57,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 16:16:57,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 16:16:57,549 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) [2023-01-10 16:16:57,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-01-10 16:16:57,685 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2023-01-10 16:16:57,686 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 16:16:57,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 12 conjunts are in the unsatisfiable core [2023-01-10 16:16:57,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 16:16:57,911 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 25 proven. 7 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-01-10 16:16:57,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 16:16:58,100 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 24 proven. 8 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-01-10 16:16:58,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304197734] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 16:16:58,101 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 16:16:58,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 31 [2023-01-10 16:16:58,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648647064] [2023-01-10 16:16:58,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 16:16:58,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-01-10 16:16:58,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 16:16:58,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-01-10 16:16:58,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=831, Unknown=0, NotChecked=0, Total=930 [2023-01-10 16:16:58,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:58,103 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 16:16:58,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 8.548387096774194) internal successors, (265), 31 states have internal predecessors, (265), 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) [2023-01-10 16:16:58,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:16:58,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 16:16:58,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:58,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:58,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:16:58,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-01-10 16:16:58,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-01-10 16:16:58,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2023-01-10 16:16:58,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-01-10 16:16:58,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:17:02,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:17:02,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 16:17:02,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:17:02,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:17:02,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:17:02,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-10 16:17:02,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-01-10 16:17:02,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-01-10 16:17:02,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-01-10 16:17:02,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-01-10 16:17:02,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-01-10 16:17:02,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-01-10 16:17:02,334 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 16:17:02,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 16:17:02,335 INFO L85 PathProgramCache]: Analyzing trace with hash -427744329, now seen corresponding path program 6 times [2023-01-10 16:17:02,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 16:17:02,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212651060] [2023-01-10 16:17:02,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 16:17:02,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 16:17:02,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 16:17:02,678 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 18 proven. 86 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-01-10 16:17:02,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 16:17:02,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212651060] [2023-01-10 16:17:02,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212651060] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 16:17:02,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626114887] [2023-01-10 16:17:02,678 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-01-10 16:17:02,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 16:17:02,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 16:17:02,680 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) [2023-01-10 16:17:02,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-01-10 16:17:03,088 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2023-01-10 16:17:03,089 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 16:17:03,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 18 conjunts are in the unsatisfiable core [2023-01-10 16:17:03,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 16:17:03,517 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 50 proven. 55 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-01-10 16:17:03,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 16:17:03,820 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 18 proven. 75 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-01-10 16:17:03,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626114887] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 16:17:03,820 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 16:17:03,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 19, 16] total 42 [2023-01-10 16:17:03,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360813939] [2023-01-10 16:17:03,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 16:17:03,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-01-10 16:17:03,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 16:17:03,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-01-10 16:17:03,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=1525, Unknown=0, NotChecked=0, Total=1722 [2023-01-10 16:17:03,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:17:03,825 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 16:17:03,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 8.023809523809524) internal successors, (337), 42 states have internal predecessors, (337), 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) [2023-01-10 16:17:03,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:17:03,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 16:17:03,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:17:03,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:17:03,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:17:03,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-01-10 16:17:03,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-01-10 16:17:03,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2023-01-10 16:17:03,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-01-10 16:17:03,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-01-10 16:17:03,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:17:23,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:17:23,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 16:17:23,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:17:23,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:17:23,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:17:23,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-10 16:17:23,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-01-10 16:17:23,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-01-10 16:17:23,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-01-10 16:17:23,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-01-10 16:17:23,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 204 states. [2023-01-10 16:17:23,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-01-10 16:17:23,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 16:17:23,850 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 16:17:23,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 16:17:23,850 INFO L85 PathProgramCache]: Analyzing trace with hash 591884800, now seen corresponding path program 7 times [2023-01-10 16:17:23,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 16:17:23,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630186237] [2023-01-10 16:17:23,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 16:17:23,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 16:17:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 16:17:24,194 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 21 proven. 82 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-01-10 16:17:24,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 16:17:24,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630186237] [2023-01-10 16:17:24,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630186237] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 16:17:24,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758990613] [2023-01-10 16:17:24,195 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-01-10 16:17:24,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 16:17:24,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 16:17:24,196 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) [2023-01-10 16:17:24,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-01-10 16:17:24,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 16:17:24,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 18 conjunts are in the unsatisfiable core [2023-01-10 16:17:24,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 16:17:24,746 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 66 proven. 27 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-01-10 16:17:24,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 16:17:25,209 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 66 proven. 27 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-01-10 16:17:25,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758990613] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 16:17:25,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 16:17:25,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 19, 19] total 48 [2023-01-10 16:17:25,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339336270] [2023-01-10 16:17:25,211 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 16:17:25,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-01-10 16:17:25,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 16:17:25,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-01-10 16:17:25,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=1991, Unknown=0, NotChecked=0, Total=2256 [2023-01-10 16:17:25,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:17:25,216 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 16:17:25,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 6.958333333333333) internal successors, (334), 48 states have internal predecessors, (334), 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) [2023-01-10 16:17:25,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:17:25,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 16:17:25,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:17:25,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:17:25,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:17:25,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-01-10 16:17:25,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-01-10 16:17:25,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2023-01-10 16:17:25,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-01-10 16:17:25,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-01-10 16:17:25,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 204 states. [2023-01-10 16:17:25,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:17:42,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:17:42,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 16:17:42,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:17:42,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:17:42,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:17:42,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-10 16:17:42,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-01-10 16:17:42,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-01-10 16:17:42,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-01-10 16:17:42,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-01-10 16:17:42,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 204 states. [2023-01-10 16:17:42,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-01-10 16:17:42,061 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-01-10 16:17:42,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-01-10 16:17:42,260 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 16:17:42,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 16:17:42,261 INFO L85 PathProgramCache]: Analyzing trace with hash 915177870, now seen corresponding path program 8 times [2023-01-10 16:17:42,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 16:17:42,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667104067] [2023-01-10 16:17:42,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 16:17:42,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 16:17:42,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 16:17:42,688 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 67 proven. 58 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-01-10 16:17:42,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 16:17:42,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667104067] [2023-01-10 16:17:42,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667104067] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 16:17:42,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939694400] [2023-01-10 16:17:42,689 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-10 16:17:42,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 16:17:42,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 16:17:42,690 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) [2023-01-10 16:17:42,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-01-10 16:17:42,953 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-10 16:17:42,953 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 16:17:42,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 18 conjunts are in the unsatisfiable core [2023-01-10 16:17:42,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 16:17:43,349 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 82 proven. 43 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-01-10 16:17:43,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 16:17:43,786 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 107 proven. 18 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-01-10 16:17:43,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939694400] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 16:17:43,787 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 16:17:43,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 44 [2023-01-10 16:17:43,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31361497] [2023-01-10 16:17:43,787 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 16:17:43,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-01-10 16:17:43,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 16:17:43,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-01-10 16:17:43,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=317, Invalid=1575, Unknown=0, NotChecked=0, Total=1892 [2023-01-10 16:17:43,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:17:43,790 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 16:17:43,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 6.0227272727272725) internal successors, (265), 44 states have internal predecessors, (265), 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) [2023-01-10 16:17:43,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:17:43,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 16:17:43,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:17:43,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:17:43,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:17:43,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-01-10 16:17:43,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-01-10 16:17:43,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2023-01-10 16:17:43,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-01-10 16:17:43,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-01-10 16:17:43,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 204 states. [2023-01-10 16:17:43,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2023-01-10 16:17:43,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:18:05,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:18:05,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 16:18:05,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:18:05,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:18:05,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:18:05,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-10 16:18:05,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-01-10 16:18:05,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-01-10 16:18:05,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-01-10 16:18:05,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-01-10 16:18:05,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 204 states. [2023-01-10 16:18:05,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-01-10 16:18:05,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-01-10 16:18:05,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-01-10 16:18:05,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-01-10 16:18:05,993 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 16:18:05,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 16:18:05,993 INFO L85 PathProgramCache]: Analyzing trace with hash 257414816, now seen corresponding path program 9 times [2023-01-10 16:18:05,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 16:18:05,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985423729] [2023-01-10 16:18:05,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 16:18:05,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 16:18:06,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 16:18:06,499 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 97 proven. 65 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-01-10 16:18:06,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 16:18:06,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985423729] [2023-01-10 16:18:06,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985423729] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 16:18:06,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557051027] [2023-01-10 16:18:06,499 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-10 16:18:06,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 16:18:06,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 16:18:06,501 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) [2023-01-10 16:18:06,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-01-10 16:18:06,927 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-01-10 16:18:06,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 16:18:06,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 59 conjunts are in the unsatisfiable core [2023-01-10 16:18:06,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 16:18:08,335 INFO L321 Elim1Store]: treesize reduction 40, result has 56.0 percent of original size [2023-01-10 16:18:08,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 87 [2023-01-10 16:18:09,924 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-10 16:18:09,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 130 [2023-01-10 16:18:11,042 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 82 proven. 59 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-01-10 16:18:11,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 16:18:12,438 INFO L321 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2023-01-10 16:18:12,438 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 63 treesize of output 38 [2023-01-10 16:18:12,612 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 76 proven. 37 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2023-01-10 16:18:12,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557051027] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 16:18:12,612 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 16:18:12,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 41, 25] total 83 [2023-01-10 16:18:12,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617932810] [2023-01-10 16:18:12,613 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 16:18:12,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2023-01-10 16:18:12,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 16:18:12,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2023-01-10 16:18:12,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=422, Invalid=6384, Unknown=0, NotChecked=0, Total=6806 [2023-01-10 16:18:12,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:18:12,617 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 16:18:12,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 83 states have (on average 5.530120481927711) internal successors, (459), 83 states have internal predecessors, (459), 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) [2023-01-10 16:18:12,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 16:18:12,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 16:18:12,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:18:12,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:18:12,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 16:18:12,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-01-10 16:18:12,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-01-10 16:18:12,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2023-01-10 16:18:12,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-01-10 16:18:12,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-01-10 16:18:12,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 204 states. [2023-01-10 16:18:12,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2023-01-10 16:18:12,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-01-10 16:18:12,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.