/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dpor-d6e1636 [2023-01-10 13:25:02,094 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-10 13:25:02,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-10 13:25:02,127 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-10 13:25:02,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-10 13:25:02,129 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-10 13:25:02,132 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-10 13:25:02,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-10 13:25:02,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-10 13:25:02,140 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-10 13:25:02,142 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-10 13:25:02,143 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-10 13:25:02,143 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-10 13:25:02,146 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-10 13:25:02,147 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-10 13:25:02,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-10 13:25:02,148 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-10 13:25:02,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-10 13:25:02,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-10 13:25:02,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-10 13:25:02,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-10 13:25:02,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-10 13:25:02,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-10 13:25:02,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-10 13:25:02,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-10 13:25:02,167 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-10 13:25:02,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-10 13:25:02,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-10 13:25:02,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-10 13:25:02,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2023-01-10 13:25:02,175 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-10 13:25:02,175 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-10 13:25:02,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-10 13:25:02,177 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2023-01-10 13:25:02,209 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-10 13:25:02,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-10 13:25:02,209 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-01-10 13:25:02,209 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-01-10 13:25:02,210 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-10 13:25:02,210 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-10 13:25:02,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-10 13:25:02,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-10 13:25:02,211 INFO L138 SettingsManager]: * Use SBE=true [2023-01-10 13:25:02,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-10 13:25:02,211 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-10 13:25:02,211 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-10 13:25:02,211 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-10 13:25:02,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-10 13:25:02,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-10 13:25:02,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-10 13:25:02,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-10 13:25:02,212 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-10 13:25:02,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-10 13:25:02,212 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-10 13:25:02,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-10 13:25:02,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-10 13:25:02,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-10 13:25:02,212 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-10 13:25:02,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-10 13:25:02,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-10 13:25:02,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-10 13:25:02,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-10 13:25:02,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-10 13:25:02,213 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-10 13:25:02,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-10 13:25:02,214 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-01-10 13:25:02,214 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-01-10 13:25:02,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-01-10 13:25:02,214 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2023-01-10 13:25:02,214 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2023-01-10 13:25:02,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-10 13:25:02,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-10 13:25:02,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-10 13:25:02,463 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-10 13:25:02,463 INFO L275 PluginConnector]: CDTParser initialized [2023-01-10 13:25:02,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2023-01-10 13:25:03,533 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-10 13:25:03,725 INFO L351 CDTParser]: Found 1 translation units. [2023-01-10 13:25:03,726 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2023-01-10 13:25:03,734 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16dd79cba/c856ed16672d468ea29d9ce57b735a10/FLAGc0f8d79fb [2023-01-10 13:25:03,747 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16dd79cba/c856ed16672d468ea29d9ce57b735a10 [2023-01-10 13:25:03,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-10 13:25:03,751 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-10 13:25:03,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-10 13:25:03,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-10 13:25:03,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-10 13:25:03,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:25:03" (1/1) ... [2023-01-10 13:25:03,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1950d703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:03, skipping insertion in model container [2023-01-10 13:25:03,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:25:03" (1/1) ... [2023-01-10 13:25:03,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-10 13:25:03,797 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-10 13:25:03,990 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-bad-buffer-mult-alt2.wvr.c[4174,4187] [2023-01-10 13:25:03,998 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-10 13:25:04,006 INFO L203 MainTranslator]: Completed pre-run [2023-01-10 13:25:04,028 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-bad-buffer-mult-alt2.wvr.c[4174,4187] [2023-01-10 13:25:04,032 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-10 13:25:04,039 WARN L663 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-10 13:25:04,040 WARN L663 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-10 13:25:04,046 INFO L208 MainTranslator]: Completed translation [2023-01-10 13:25:04,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:04 WrapperNode [2023-01-10 13:25:04,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-10 13:25:04,047 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-10 13:25:04,047 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-10 13:25:04,048 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-10 13:25:04,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:04" (1/1) ... [2023-01-10 13:25:04,059 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:04" (1/1) ... [2023-01-10 13:25:04,088 INFO L138 Inliner]: procedures = 26, calls = 75, calls flagged for inlining = 17, calls inlined = 21, statements flattened = 326 [2023-01-10 13:25:04,089 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-10 13:25:04,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-10 13:25:04,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-10 13:25:04,090 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-10 13:25:04,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:04" (1/1) ... [2023-01-10 13:25:04,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:04" (1/1) ... [2023-01-10 13:25:04,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:04" (1/1) ... [2023-01-10 13:25:04,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:04" (1/1) ... [2023-01-10 13:25:04,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:04" (1/1) ... [2023-01-10 13:25:04,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:04" (1/1) ... [2023-01-10 13:25:04,115 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:04" (1/1) ... [2023-01-10 13:25:04,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:04" (1/1) ... [2023-01-10 13:25:04,121 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-10 13:25:04,122 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-10 13:25:04,122 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-10 13:25:04,122 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-10 13:25:04,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:04" (1/1) ... [2023-01-10 13:25:04,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-10 13:25:04,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:25:04,149 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 13:25:04,161 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 13:25:04,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-10 13:25:04,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-10 13:25:04,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-10 13:25:04,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-10 13:25:04,191 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-10 13:25:04,191 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-10 13:25:04,191 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-10 13:25:04,192 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-10 13:25:04,192 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-01-10 13:25:04,192 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-01-10 13:25:04,192 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-01-10 13:25:04,192 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-01-10 13:25:04,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-10 13:25:04,192 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-10 13:25:04,192 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-10 13:25:04,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-10 13:25:04,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-10 13:25:04,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-10 13:25:04,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-10 13:25:04,194 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 13:25:04,377 INFO L236 CfgBuilder]: Building ICFG [2023-01-10 13:25:04,379 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-10 13:25:04,816 INFO L277 CfgBuilder]: Performing block encoding [2023-01-10 13:25:05,020 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-10 13:25:05,021 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-01-10 13:25:05,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:25:05 BoogieIcfgContainer [2023-01-10 13:25:05,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-10 13:25:05,036 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-10 13:25:05,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-10 13:25:05,040 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-10 13:25:05,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:25:03" (1/3) ... [2023-01-10 13:25:05,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3916f147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:25:05, skipping insertion in model container [2023-01-10 13:25:05,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:04" (2/3) ... [2023-01-10 13:25:05,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3916f147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:25:05, skipping insertion in model container [2023-01-10 13:25:05,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:25:05" (3/3) ... [2023-01-10 13:25:05,042 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-buffer-mult-alt2.wvr.c [2023-01-10 13:25:05,049 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-01-10 13:25:05,058 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-10 13:25:05,058 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-10 13:25:05,058 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-10 13:25:05,148 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-01-10 13:25:05,193 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 13:25:05,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 13:25:05,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:25:05,196 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 13:25:05,199 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 13:25:05,242 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 13:25:05,249 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-01-10 13:25:05,256 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;@6d831f2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 13:25:05,257 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 13:25:05,741 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:25:05,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:25:05,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1357618554, now seen corresponding path program 1 times [2023-01-10 13:25:05,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:25:05,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518735125] [2023-01-10 13:25:05,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:25:05,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:25:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:25:06,120 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-01-10 13:25:06,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:25:06,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518735125] [2023-01-10 13:25:06,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518735125] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 13:25:06,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 13:25:06,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-10 13:25:06,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392014717] [2023-01-10 13:25:06,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 13:25:06,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-10 13:25:06,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:25:06,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-10 13:25:06,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-10 13:25:06,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:06,154 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:25:06,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 96.0) internal successors, (192), 2 states have internal predecessors, (192), 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 13:25:06,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:06,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:06,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-10 13:25:06,255 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:25:06,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:25:06,256 INFO L85 PathProgramCache]: Analyzing trace with hash 835303911, now seen corresponding path program 1 times [2023-01-10 13:25:06,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:25:06,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649414852] [2023-01-10 13:25:06,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:25:06,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:25:06,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:25:06,881 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 13:25:06,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:25:06,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649414852] [2023-01-10 13:25:06,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649414852] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 13:25:06,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 13:25:06,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-10 13:25:06,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143026435] [2023-01-10 13:25:06,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 13:25:06,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-10 13:25:06,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:25:06,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-10 13:25:06,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-01-10 13:25:06,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:06,886 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:25:06,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 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 13:25:06,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:06,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:07,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:07,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:25:07,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-10 13:25:07,055 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:25:07,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:25:07,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1679503118, now seen corresponding path program 1 times [2023-01-10 13:25:07,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:25:07,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206432100] [2023-01-10 13:25:07,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:25:07,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:25:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:25:07,421 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-10 13:25:07,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:25:07,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206432100] [2023-01-10 13:25:07,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206432100] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 13:25:07,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 13:25:07,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-10 13:25:07,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882590461] [2023-01-10 13:25:07,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 13:25:07,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-10 13:25:07,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:25:07,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-10 13:25:07,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-01-10 13:25:07,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:07,430 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:25:07,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 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 13:25:07,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:07,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:25:07,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:07,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:07,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:25:07,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:25:07,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-10 13:25:07,627 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:25:07,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:25:07,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1288456121, now seen corresponding path program 1 times [2023-01-10 13:25:07,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:25:07,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317840353] [2023-01-10 13:25:07,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:25:07,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:25:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:25:08,849 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-10 13:25:08,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:25:08,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317840353] [2023-01-10 13:25:08,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317840353] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:25:08,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139530111] [2023-01-10 13:25:08,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:25:08,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:25:08,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:25:08,853 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 13:25:08,854 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 13:25:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:25:09,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 17 conjunts are in the unsatisfiable core [2023-01-10 13:25:09,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:25:10,011 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-10 13:25:10,011 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:25:10,922 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-10 13:25:10,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139530111] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 13:25:10,923 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 13:25:10,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 13] total 31 [2023-01-10 13:25:10,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79077553] [2023-01-10 13:25:10,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 13:25:10,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-01-10 13:25:10,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:25:10,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-01-10 13:25:10,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=770, Unknown=0, NotChecked=0, Total=930 [2023-01-10 13:25:10,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:10,927 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:25:10,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 17.419354838709676) internal successors, (540), 31 states have internal predecessors, (540), 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 13:25:10,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:10,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:25:10,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:25:10,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:12,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:12,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:25:12,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:25:12,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-01-10 13:25:12,607 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 13:25:12,801 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 13:25:12,802 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:25:12,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:25:12,802 INFO L85 PathProgramCache]: Analyzing trace with hash 532214240, now seen corresponding path program 2 times [2023-01-10 13:25:12,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:25:12,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454491917] [2023-01-10 13:25:12,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:25:12,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:25:12,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:25:13,376 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-10 13:25:13,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:25:13,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454491917] [2023-01-10 13:25:13,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454491917] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:25:13,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604952985] [2023-01-10 13:25:13,377 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-10 13:25:13,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:25:13,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:25:13,378 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 13:25:13,385 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 13:25:13,555 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-10 13:25:13,556 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 13:25:13,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 15 conjunts are in the unsatisfiable core [2023-01-10 13:25:13,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:25:14,096 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-10 13:25:14,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:25:14,362 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-10 13:25:14,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604952985] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 13:25:14,362 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 13:25:14,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 10] total 23 [2023-01-10 13:25:14,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314148424] [2023-01-10 13:25:14,363 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 13:25:14,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-01-10 13:25:14,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:25:14,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-01-10 13:25:14,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2023-01-10 13:25:14,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:14,365 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:25:14,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 18.08695652173913) internal successors, (416), 23 states have internal predecessors, (416), 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 13:25:14,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:14,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:25:14,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:25:14,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-01-10 13:25:14,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:15,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:15,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:25:15,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:25:15,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:25:15,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:25:15,227 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 13:25:15,421 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 13:25:15,422 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:25:15,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:25:15,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1108287565, now seen corresponding path program 3 times [2023-01-10 13:25:15,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:25:15,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143494098] [2023-01-10 13:25:15,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:25:15,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:25:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:25:15,891 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 12 proven. 15 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2023-01-10 13:25:15,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:25:15,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143494098] [2023-01-10 13:25:15,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143494098] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:25:15,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392109439] [2023-01-10 13:25:15,895 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-10 13:25:15,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:25:15,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:25:15,897 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 13:25:15,923 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 13:25:16,091 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-01-10 13:25:16,092 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 13:25:16,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 9 conjunts are in the unsatisfiable core [2023-01-10 13:25:16,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:25:16,301 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2023-01-10 13:25:16,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:25:16,555 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 12 proven. 15 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2023-01-10 13:25:16,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392109439] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 13:25:16,556 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 13:25:16,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2023-01-10 13:25:16,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042219972] [2023-01-10 13:25:16,556 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 13:25:16,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-01-10 13:25:16,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:25:16,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-01-10 13:25:16,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2023-01-10 13:25:16,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:16,559 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:25:16,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.157894736842104) internal successors, (250), 19 states have internal predecessors, (250), 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 13:25:16,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:16,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:25:16,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:25:16,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:25:16,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:25:16,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:16,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:16,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:25:16,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:25:16,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:25:16,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:25:16,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:25:16,942 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 13:25:17,139 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 13:25:17,139 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:25:17,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:25:17,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1233429634, now seen corresponding path program 4 times [2023-01-10 13:25:17,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:25:17,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980682667] [2023-01-10 13:25:17,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:25:17,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:25:17,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:25:17,706 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 15 proven. 58 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-01-10 13:25:17,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:25:17,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980682667] [2023-01-10 13:25:17,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980682667] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:25:17,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392614934] [2023-01-10 13:25:17,707 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-01-10 13:25:17,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:25:17,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:25:17,708 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 13:25:17,711 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 13:25:17,862 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-01-10 13:25:17,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 13:25:17,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 36 conjunts are in the unsatisfiable core [2023-01-10 13:25:17,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:25:18,896 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 93 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-01-10 13:25:18,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:25:19,427 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-10 13:25:19,428 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 20 treesize of output 4 [2023-01-10 13:25:19,889 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 71 proven. 32 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-01-10 13:25:19,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392614934] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 13:25:19,889 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 13:25:19,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 19, 18] total 42 [2023-01-10 13:25:19,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374547821] [2023-01-10 13:25:19,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 13:25:19,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-01-10 13:25:19,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:25:19,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-01-10 13:25:19,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=314, Invalid=1408, Unknown=0, NotChecked=0, Total=1722 [2023-01-10 13:25:19,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:19,893 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:25:19,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 10.261904761904763) internal successors, (431), 42 states have internal predecessors, (431), 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 13:25:19,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:19,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:25:19,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:25:19,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:25:19,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:25:19,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:25:19,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:21,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:21,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:25:21,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:25:21,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:25:21,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:25:21,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:25:21,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:25:21,261 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 13:25:21,457 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 13:25:21,457 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:25:21,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:25:21,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1285755681, now seen corresponding path program 5 times [2023-01-10 13:25:21,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:25:21,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228682943] [2023-01-10 13:25:21,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:25:21,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:25:21,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:25:22,275 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 54 proven. 124 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-01-10 13:25:22,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:25:22,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228682943] [2023-01-10 13:25:22,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228682943] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:25:22,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784335301] [2023-01-10 13:25:22,276 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-01-10 13:25:22,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:25:22,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:25:22,279 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 13:25:22,281 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 13:25:22,518 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2023-01-10 13:25:22,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 13:25:22,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 21 conjunts are in the unsatisfiable core [2023-01-10 13:25:22,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:25:23,144 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 93 proven. 85 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-01-10 13:25:23,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:25:23,890 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 42 proven. 136 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-01-10 13:25:23,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784335301] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 13:25:23,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 13:25:23,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 55 [2023-01-10 13:25:23,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888029374] [2023-01-10 13:25:23,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 13:25:23,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2023-01-10 13:25:23,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:25:23,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2023-01-10 13:25:23,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=481, Invalid=2489, Unknown=0, NotChecked=0, Total=2970 [2023-01-10 13:25:23,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:23,895 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:25:23,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 7.8545454545454545) internal successors, (432), 55 states have internal predecessors, (432), 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 13:25:23,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:23,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:25:23,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:25:23,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:25:23,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:25:23,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:25:23,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:25:23,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:24,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:25:24,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:25:24,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:25:24,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:25:24,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:25:24,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:25:24,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:25:24,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:25:24,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-01-10 13:25:24,899 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 13:25:24,900 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:25:24,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:25:24,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1968012458, now seen corresponding path program 6 times [2023-01-10 13:25:24,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:25:24,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193567065] [2023-01-10 13:25:24,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:25:24,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:25:25,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:25:37,215 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 2 proven. 229 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:25:37,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:25:37,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193567065] [2023-01-10 13:25:37,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193567065] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:25:37,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715820532] [2023-01-10 13:25:37,216 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-01-10 13:25:37,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:25:37,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:25:37,217 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 13:25:37,219 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 13:25:37,656 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2023-01-10 13:25:37,657 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 13:25:37,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 803 conjuncts, 249 conjunts are in the unsatisfiable core [2023-01-10 13:25:37,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:25:37,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-01-10 13:25:37,781 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-01-10 13:25:37,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2023-01-10 13:25:37,859 INFO L321 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2023-01-10 13:25:37,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 30 [2023-01-10 13:25:37,947 INFO L321 Elim1Store]: treesize reduction 20, result has 57.4 percent of original size [2023-01-10 13:25:37,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 25 treesize of output 46 [2023-01-10 13:25:40,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:25:40,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:25:40,112 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-01-10 13:25:40,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 52 [2023-01-10 13:25:41,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-01-10 13:25:42,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-01-10 13:25:43,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-01-10 13:25:43,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-01-10 13:25:45,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:25:45,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:25:45,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:25:45,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:25:45,964 INFO L321 Elim1Store]: treesize reduction 4, result has 76.5 percent of original size [2023-01-10 13:25:45,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 52 [2023-01-10 13:25:46,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-01-10 13:25:48,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-01-10 13:25:48,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-01-10 13:25:48,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-01-10 13:25:49,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-01-10 13:25:54,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 196 treesize of output 34 [2023-01-10 13:25:55,058 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 8 proven. 223 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:25:55,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:26:17,518 INFO L321 Elim1Store]: treesize reduction 114, result has 54.9 percent of original size [2023-01-10 13:26:17,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 2137 treesize of output 595 [2023-01-10 13:26:18,575 INFO L321 Elim1Store]: treesize reduction 24, result has 95.4 percent of original size [2023-01-10 13:26:18,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 51610029 treesize of output 49048320 [2023-01-10 13:26:24,102 WARN L222 SmtUtils]: Spent 5.51s on a formula simplification. DAG size of input: 4160 DAG size of output: 946 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-01-10 13:26:24,196 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-10 13:26:24,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 26105 treesize of output 25170 [2023-01-10 13:26:24,556 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-10 13:26:24,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 25069 treesize of output 21026 [2023-01-10 13:26:24,928 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-10 13:26:24,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 20925 treesize of output 18954 [2023-01-10 13:26:25,333 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-10 13:26:25,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 18908 treesize of output 10721 [2023-01-10 13:29:08,984 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:29:08,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715820532] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 13:29:08,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 13:29:08,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 70, 75] total 190 [2023-01-10 13:29:08,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429290839] [2023-01-10 13:29:08,985 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 13:29:08,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2023-01-10 13:29:08,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:29:08,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2023-01-10 13:29:08,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5802, Invalid=29789, Unknown=319, NotChecked=0, Total=35910 [2023-01-10 13:29:08,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:29:08,995 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:29:08,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 190 states have (on average 4.08421052631579) internal successors, (776), 190 states have internal predecessors, (776), 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 13:29:08,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:29:08,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:29:08,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:29:08,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:29:08,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:29:08,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:29:08,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:29:08,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:29:08,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:30:17,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:30:17,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:30:17,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:30:17,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:30:17,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:30:17,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:30:17,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:30:17,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:30:17,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:30:17,991 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 13:30:18,183 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 13:30:18,184 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:30:18,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:30:18,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1880812184, now seen corresponding path program 7 times [2023-01-10 13:30:18,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:30:18,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706454086] [2023-01-10 13:30:18,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:30:18,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:30:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:30:19,152 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 53 proven. 34 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2023-01-10 13:30:19,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:30:19,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706454086] [2023-01-10 13:30:19,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706454086] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:30:19,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423432816] [2023-01-10 13:30:19,153 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-01-10 13:30:19,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:30:19,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:30:19,157 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 13:30:19,160 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 13:30:19,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:30:19,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 25 conjunts are in the unsatisfiable core [2023-01-10 13:30:19,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:30:19,906 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 74 proven. 49 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2023-01-10 13:30:19,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:30:20,256 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 64 proven. 39 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2023-01-10 13:30:20,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423432816] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 13:30:20,256 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 13:30:20,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 20, 13] total 35 [2023-01-10 13:30:20,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190111492] [2023-01-10 13:30:20,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 13:30:20,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-01-10 13:30:20,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:30:20,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-01-10 13:30:20,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=335, Invalid=855, Unknown=0, NotChecked=0, Total=1190 [2023-01-10 13:30:20,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:30:20,259 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:30:20,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 9.971428571428572) internal successors, (349), 35 states have internal predecessors, (349), 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 13:30:20,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:30:20,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:30:20,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:30:20,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:30:20,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:30:20,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:30:20,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:30:20,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:30:20,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:30:20,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:30:21,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:30:21,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:30:21,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:30:21,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:30:21,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:30:21,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:30:21,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:30:21,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:30:21,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:30:21,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:30:21,515 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 13:30:21,713 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 13:30:21,717 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:30:21,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:30:21,717 INFO L85 PathProgramCache]: Analyzing trace with hash 819583991, now seen corresponding path program 8 times [2023-01-10 13:30:21,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:30:21,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625224006] [2023-01-10 13:30:21,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:30:21,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:30:21,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:30:22,750 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 108 proven. 271 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-01-10 13:30:22,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:30:22,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625224006] [2023-01-10 13:30:22,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625224006] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:30:22,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378191898] [2023-01-10 13:30:22,751 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-10 13:30:22,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:30:22,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:30:22,753 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 13:30:22,776 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 13:30:23,001 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-10 13:30:23,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 13:30:23,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 937 conjuncts, 28 conjunts are in the unsatisfiable core [2023-01-10 13:30:23,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:30:23,977 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 206 proven. 175 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-01-10 13:30:23,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:30:25,163 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 108 proven. 273 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-01-10 13:30:25,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378191898] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 13:30:25,164 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 13:30:25,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 28, 28] total 76 [2023-01-10 13:30:25,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240274932] [2023-01-10 13:30:25,164 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 13:30:25,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2023-01-10 13:30:25,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:30:25,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2023-01-10 13:30:25,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=933, Invalid=4767, Unknown=0, NotChecked=0, Total=5700 [2023-01-10 13:30:25,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:30:25,169 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:30:25,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 76 states have (on average 7.644736842105263) internal successors, (581), 76 states have internal predecessors, (581), 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 13:30:25,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:30:25,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:30:25,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:30:25,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:30:25,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:30:25,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:30:25,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:30:25,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:30:25,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:30:25,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:30:25,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:30:26,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:30:26,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:30:26,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:30:26,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:30:26,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:30:26,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:30:26,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:30:26,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:30:26,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:30:26,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:30:26,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-01-10 13:30:26,519 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 13:30:26,716 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 13:30:26,717 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:30:26,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:30:26,717 INFO L85 PathProgramCache]: Analyzing trace with hash -982033651, now seen corresponding path program 9 times [2023-01-10 13:30:26,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:30:26,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667084765] [2023-01-10 13:30:26,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:30:26,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:30:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:30:48,407 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 22 proven. 512 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:30:48,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:30:48,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667084765] [2023-01-10 13:30:48,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667084765] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:30:48,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201355153] [2023-01-10 13:30:48,408 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-10 13:30:48,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:30:48,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:30:48,413 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 13:30:48,416 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 13:30:49,147 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2023-01-10 13:30:49,147 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 13:30:49,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 965 conjuncts, 265 conjunts are in the unsatisfiable core [2023-01-10 13:30:49,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:31:04,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:04,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:04,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:04,962 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-10 13:31:04,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:04,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:04,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:04,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:04,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:04,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:04,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:04,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:04,976 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-10 13:31:04,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:04,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:04,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:04,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:04,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:04,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:04,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:04,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:04,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:04,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:04,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:04,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:04,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:04,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:04,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:04,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:05,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:05,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:05,002 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-10 13:31:05,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:05,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:05,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:05,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:05,008 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-10 13:31:05,012 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-10 13:31:05,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:05,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:05,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:05,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:05,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:05,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:05,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:05,024 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-10 13:31:05,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:05,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-10 13:31:05,027 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-10 13:31:05,028 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-10 13:31:05,160 INFO L321 Elim1Store]: treesize reduction 179, result has 48.4 percent of original size [2023-01-10 13:31:05,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 36 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 153 case distinctions, treesize of input 258 treesize of output 213 [2023-01-10 13:31:06,093 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 0 proven. 534 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:31:06,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:31:17,269 INFO L321 Elim1Store]: treesize reduction 1280, result has 37.8 percent of original size [2023-01-10 13:31:17,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 20 select indices, 20 select index equivalence classes, 0 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 190 case distinctions, treesize of input 231 treesize of output 833 [2023-01-10 13:31:28,810 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 10 proven. 524 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:31:28,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201355153] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 13:31:28,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 13:31:28,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [76, 68, 64] total 199 [2023-01-10 13:31:28,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90585163] [2023-01-10 13:31:28,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 13:31:28,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 199 states [2023-01-10 13:31:28,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:31:28,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 199 interpolants. [2023-01-10 13:31:28,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3094, Invalid=36307, Unknown=1, NotChecked=0, Total=39402 [2023-01-10 13:31:28,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:28,819 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:31:28,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 199 states, 199 states have (on average 4.532663316582915) internal successors, (902), 199 states have internal predecessors, (902), 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 13:31:28,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:31:28,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:31:28,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:31:28,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:31:28,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:31:28,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:31:28,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:31:28,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:31:28,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:31:28,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:31:28,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2023-01-10 13:31:28,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:32:23,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:32:23,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:32:23,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:32:23,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:32:23,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:32:23,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:32:23,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:32:23,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:32:23,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:32:23,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:32:23,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-01-10 13:32:23,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2023-01-10 13:32:23,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-01-10 13:32:24,080 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 13:32:24,080 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:32:24,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:32:24,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1531420650, now seen corresponding path program 10 times [2023-01-10 13:32:24,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:32:24,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756781674] [2023-01-10 13:32:24,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:32:24,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:32:24,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:32:24,517 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 31 proven. 124 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2023-01-10 13:32:24,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:32:24,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756781674] [2023-01-10 13:32:24,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756781674] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:32:24,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139872013] [2023-01-10 13:32:24,518 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-01-10 13:32:24,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:32:24,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:32:24,519 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 13:32:24,521 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 13:32:24,951 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-01-10 13:32:24,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 13:32:24,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 1031 conjuncts, 8 conjunts are in the unsatisfiable core [2023-01-10 13:32:24,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:32:25,125 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 33 proven. 122 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2023-01-10 13:32:25,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:32:25,447 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 31 proven. 124 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2023-01-10 13:32:25,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139872013] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 13:32:25,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 13:32:25,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 19 [2023-01-10 13:32:25,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802999261] [2023-01-10 13:32:25,448 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 13:32:25,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-01-10 13:32:25,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:32:25,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-01-10 13:32:25,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2023-01-10 13:32:25,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:32:25,449 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:32:25,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 19.789473684210527) internal successors, (376), 19 states have internal predecessors, (376), 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 13:32:25,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:32:25,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:32:25,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:32:25,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:32:25,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:32:25,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:32:25,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:32:25,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:32:25,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:32:25,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:32:25,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2023-01-10 13:32:25,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2023-01-10 13:32:25,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:32:25,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:32:25,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:32:25,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:32:25,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:32:25,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:32:25,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:32:25,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:32:25,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:32:25,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:32:25,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:32:25,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-01-10 13:32:25,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2023-01-10 13:32:25,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-01-10 13:32:25,868 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 13:32:26,061 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 13:32:26,061 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:32:26,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:32:26,062 INFO L85 PathProgramCache]: Analyzing trace with hash -86007087, now seen corresponding path program 11 times [2023-01-10 13:32:26,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:32:26,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291726899] [2023-01-10 13:32:26,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:32:26,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:32:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:32:26,925 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 130 proven. 92 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2023-01-10 13:32:26,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:32:26,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291726899] [2023-01-10 13:32:26,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291726899] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:32:26,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468497982] [2023-01-10 13:32:26,925 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-01-10 13:32:26,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:32:26,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:32:26,929 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 13:32:26,945 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 13:32:27,276 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2023-01-10 13:32:27,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 13:32:27,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 1073 conjuncts, 24 conjunts are in the unsatisfiable core [2023-01-10 13:32:27,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:32:27,806 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 179 proven. 10 refuted. 0 times theorem prover too weak. 470 trivial. 0 not checked. [2023-01-10 13:32:27,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:32:28,020 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-10 13:32:28,020 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 20 treesize of output 4 [2023-01-10 13:32:28,287 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 142 proven. 47 refuted. 0 times theorem prover too weak. 470 trivial. 0 not checked. [2023-01-10 13:32:28,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468497982] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 13:32:28,287 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 13:32:28,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 12] total 28 [2023-01-10 13:32:28,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855165304] [2023-01-10 13:32:28,287 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 13:32:28,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-01-10 13:32:28,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:32:28,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-01-10 13:32:28,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2023-01-10 13:32:28,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:32:28,289 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:32:28,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 13.714285714285714) internal successors, (384), 28 states have internal predecessors, (384), 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 13:32:28,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:32:28,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:32:28,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:32:28,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:32:28,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:32:28,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:32:28,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:32:28,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:32:28,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:32:28,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:32:28,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2023-01-10 13:32:28,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2023-01-10 13:32:28,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-01-10 13:32:28,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:32:28,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:32:28,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:32:28,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:32:28,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:32:28,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:32:28,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:32:28,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:32:28,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:32:28,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:32:28,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:32:28,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-01-10 13:32:28,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2023-01-10 13:32:28,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-01-10 13:32:28,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-01-10 13:32:28,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-01-10 13:32:29,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-01-10 13:32:29,175 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:32:29,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:32:29,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1423431875, now seen corresponding path program 12 times [2023-01-10 13:32:29,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:32:29,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505679085] [2023-01-10 13:32:29,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:32:29,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:32:29,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:32:30,044 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 78 proven. 52 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2023-01-10 13:32:30,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:32:30,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505679085] [2023-01-10 13:32:30,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505679085] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:32:30,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335850019] [2023-01-10 13:32:30,045 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-01-10 13:32:30,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:32:30,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:32:30,046 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-10 13:32:30,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-01-10 13:32:31,019 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2023-01-10 13:32:31,019 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 13:32:31,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 1047 conjuncts, 13 conjunts are in the unsatisfiable core [2023-01-10 13:32:31,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:32:31,401 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 7 proven. 116 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2023-01-10 13:32:31,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:32:31,632 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 90 proven. 33 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2023-01-10 13:32:31,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335850019] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 13:32:31,632 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 13:32:31,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 20 [2023-01-10 13:32:31,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8704934] [2023-01-10 13:32:31,633 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 13:32:31,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-01-10 13:32:31,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:32:31,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-01-10 13:32:31,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2023-01-10 13:32:31,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:32:31,634 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:32:31,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 16.35) internal successors, (327), 20 states have internal predecessors, (327), 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 13:32:31,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:32:31,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:32:31,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:32:31,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:32:31,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:32:31,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:32:31,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:32:31,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:32:31,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:32:31,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:32:31,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2023-01-10 13:32:31,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2023-01-10 13:32:31,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-01-10 13:32:31,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-01-10 13:32:31,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:32:32,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:32:32,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:32:32,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:32:32,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:32:32,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:32:32,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:32:32,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:32:32,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:32:32,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:32:32,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:32:32,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-01-10 13:32:32,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2023-01-10 13:32:32,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-01-10 13:32:32,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-01-10 13:32:32,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-01-10 13:32:32,523 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-01-10 13:32:32,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-01-10 13:32:32,716 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:32:32,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:32:32,717 INFO L85 PathProgramCache]: Analyzing trace with hash -971644795, now seen corresponding path program 13 times [2023-01-10 13:32:32,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:32:32,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398975233] [2023-01-10 13:32:32,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:32:32,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:32:32,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:32:34,150 INFO L134 CoverageAnalysis]: Checked inductivity of 4227 backedges. 313 proven. 1510 refuted. 0 times theorem prover too weak. 2404 trivial. 0 not checked. [2023-01-10 13:32:34,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:32:34,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398975233] [2023-01-10 13:32:34,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398975233] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:32:34,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618947673] [2023-01-10 13:32:34,150 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-01-10 13:32:34,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:32:34,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:32:34,152 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-10 13:32:34,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-01-10 13:32:34,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:32:34,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 2405 conjuncts, 36 conjunts are in the unsatisfiable core [2023-01-10 13:32:34,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:32:35,717 INFO L134 CoverageAnalysis]: Checked inductivity of 4227 backedges. 2092 proven. 370 refuted. 0 times theorem prover too weak. 1765 trivial. 0 not checked. [2023-01-10 13:32:35,717 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:32:36,915 INFO L134 CoverageAnalysis]: Checked inductivity of 4227 backedges. 1928 proven. 534 refuted. 0 times theorem prover too weak. 1765 trivial. 0 not checked. [2023-01-10 13:32:36,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618947673] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 13:32:36,916 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 13:32:36,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 36, 36] total 82 [2023-01-10 13:32:36,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105905723] [2023-01-10 13:32:36,916 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 13:32:36,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2023-01-10 13:32:36,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:32:36,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2023-01-10 13:32:36,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=939, Invalid=5703, Unknown=0, NotChecked=0, Total=6642 [2023-01-10 13:32:36,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:32:36,920 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:32:36,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 82 states have (on average 7.7317073170731705) internal successors, (634), 82 states have internal predecessors, (634), 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 13:32:36,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:32:36,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:32:36,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:32:36,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:32:36,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:32:36,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:32:36,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:32:36,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:32:36,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:32:36,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:32:36,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2023-01-10 13:32:36,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2023-01-10 13:32:36,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-01-10 13:32:36,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-01-10 13:32:36,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2023-01-10 13:32:36,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:32:38,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:32:38,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:32:38,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:32:38,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:32:38,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:32:38,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:32:38,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:32:38,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:32:38,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:32:38,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:32:38,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-01-10 13:32:38,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2023-01-10 13:32:38,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-01-10 13:32:38,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-01-10 13:32:38,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-01-10 13:32:38,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2023-01-10 13:32:38,884 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-01-10 13:32:39,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:32:39,076 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:32:39,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:32:39,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1768799629, now seen corresponding path program 14 times [2023-01-10 13:32:39,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:32:39,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787335836] [2023-01-10 13:32:39,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:32:39,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:32:39,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:32:40,377 INFO L134 CoverageAnalysis]: Checked inductivity of 4333 backedges. 553 proven. 1806 refuted. 0 times theorem prover too weak. 1974 trivial. 0 not checked. [2023-01-10 13:32:40,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:32:40,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787335836] [2023-01-10 13:32:40,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787335836] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:32:40,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297255835] [2023-01-10 13:32:40,378 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-10 13:32:40,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:32:40,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:32:40,379 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-10 13:32:40,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-01-10 13:32:40,855 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-10 13:32:40,855 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 13:32:40,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 2433 conjuncts, 39 conjunts are in the unsatisfiable core [2023-01-10 13:32:40,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:32:42,085 INFO L134 CoverageAnalysis]: Checked inductivity of 4333 backedges. 2189 proven. 451 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2023-01-10 13:32:42,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:32:43,548 INFO L134 CoverageAnalysis]: Checked inductivity of 4333 backedges. 2015 proven. 625 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2023-01-10 13:32:43,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297255835] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 13:32:43,548 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 13:32:43,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 39, 39] total 91 [2023-01-10 13:32:43,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462682934] [2023-01-10 13:32:43,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 13:32:43,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2023-01-10 13:32:43,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:32:43,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2023-01-10 13:32:43,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1114, Invalid=7076, Unknown=0, NotChecked=0, Total=8190 [2023-01-10 13:32:43,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:32:43,551 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:32:43,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 91 states have (on average 7.461538461538462) internal successors, (679), 91 states have internal predecessors, (679), 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 13:32:43,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:32:43,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:32:43,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:32:43,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:32:43,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:32:43,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:32:43,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:32:43,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:32:43,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:32:43,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:32:43,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2023-01-10 13:32:43,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2023-01-10 13:32:43,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-01-10 13:32:43,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-01-10 13:32:43,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2023-01-10 13:32:43,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2023-01-10 13:32:43,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:32:45,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:32:45,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:32:45,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:32:45,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:32:45,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:32:45,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:32:45,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:32:45,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:32:45,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:32:45,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:32:45,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-01-10 13:32:45,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2023-01-10 13:32:45,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-01-10 13:32:45,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-01-10 13:32:45,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-01-10 13:32:45,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2023-01-10 13:32:45,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2023-01-10 13:32:45,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-01-10 13:32:46,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-01-10 13:32:46,144 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:32:46,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:32:46,145 INFO L85 PathProgramCache]: Analyzing trace with hash 210832481, now seen corresponding path program 15 times [2023-01-10 13:32:46,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:32:46,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923410554] [2023-01-10 13:32:46,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:32:46,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:32:46,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:32:47,598 INFO L134 CoverageAnalysis]: Checked inductivity of 4455 backedges. 565 proven. 1901 refuted. 0 times theorem prover too weak. 1989 trivial. 0 not checked. [2023-01-10 13:32:47,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:32:47,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923410554] [2023-01-10 13:32:47,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923410554] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:32:47,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826296827] [2023-01-10 13:32:47,599 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-10 13:32:47,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:32:47,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:32:47,600 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-10 13:32:47,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-01-10 13:32:50,678 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2023-01-10 13:32:50,678 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 13:32:50,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 1376 conjuncts, 48 conjunts are in the unsatisfiable core [2023-01-10 13:32:50,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:32:52,407 INFO L134 CoverageAnalysis]: Checked inductivity of 4455 backedges. 1967 proven. 540 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2023-01-10 13:32:52,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:32:54,200 INFO L134 CoverageAnalysis]: Checked inductivity of 4455 backedges. 345 proven. 2162 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2023-01-10 13:32:54,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [826296827] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 13:32:54,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 13:32:54,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 42, 42] total 100 [2023-01-10 13:32:54,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970045872] [2023-01-10 13:32:54,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 13:32:54,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2023-01-10 13:32:54,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:32:54,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2023-01-10 13:32:54,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1305, Invalid=8595, Unknown=0, NotChecked=0, Total=9900 [2023-01-10 13:32:54,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:32:54,205 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:32:54,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 100 states have (on average 7.27) internal successors, (727), 100 states have internal predecessors, (727), 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 13:32:54,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:32:54,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:32:54,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:32:54,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:32:54,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:32:54,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:32:54,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:32:54,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:32:54,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:32:54,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:32:54,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2023-01-10 13:32:54,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2023-01-10 13:32:54,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-01-10 13:32:54,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-01-10 13:32:54,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2023-01-10 13:32:54,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2023-01-10 13:32:54,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2023-01-10 13:32:54,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:32:56,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:32:56,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:32:56,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:32:56,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:32:56,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:32:56,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:32:56,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:32:56,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:32:56,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:32:56,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:32:56,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-01-10 13:32:56,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2023-01-10 13:32:56,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-01-10 13:32:56,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-01-10 13:32:56,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-01-10 13:32:56,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2023-01-10 13:32:56,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2023-01-10 13:32:56,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2023-01-10 13:32:56,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-01-10 13:32:57,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-01-10 13:32:57,183 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:32:57,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:32:57,184 INFO L85 PathProgramCache]: Analyzing trace with hash -115121, now seen corresponding path program 16 times [2023-01-10 13:32:57,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:32:57,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775723492] [2023-01-10 13:32:57,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:32:57,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:32:57,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:32:58,878 INFO L134 CoverageAnalysis]: Checked inductivity of 4593 backedges. 778 proven. 2021 refuted. 0 times theorem prover too weak. 1794 trivial. 0 not checked. [2023-01-10 13:32:58,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:32:58,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775723492] [2023-01-10 13:32:58,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775723492] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:32:58,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551970622] [2023-01-10 13:32:58,879 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-01-10 13:32:58,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:32:58,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:32:58,880 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-10 13:32:58,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-01-10 13:32:59,295 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-01-10 13:32:59,295 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 13:32:59,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 1214 conjuncts, 67 conjunts are in the unsatisfiable core [2023-01-10 13:32:59,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:33:03,041 INFO L134 CoverageAnalysis]: Checked inductivity of 4593 backedges. 3436 proven. 637 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2023-01-10 13:33:03,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:33:05,636 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-10 13:33:05,636 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 20 treesize of output 4 [2023-01-10 13:33:07,407 INFO L134 CoverageAnalysis]: Checked inductivity of 4593 backedges. 1940 proven. 2133 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2023-01-10 13:33:07,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551970622] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 13:33:07,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 13:33:07,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 55, 55] total 130 [2023-01-10 13:33:07,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582996975] [2023-01-10 13:33:07,408 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 13:33:07,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2023-01-10 13:33:07,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:33:07,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2023-01-10 13:33:07,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2767, Invalid=14003, Unknown=0, NotChecked=0, Total=16770 [2023-01-10 13:33:07,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:33:07,411 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:33:07,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 7.392307692307693) internal successors, (961), 130 states have internal predecessors, (961), 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 13:33:07,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:33:07,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:33:07,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:33:07,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:33:07,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:33:07,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:33:07,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:33:07,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:33:07,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:33:07,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:33:07,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2023-01-10 13:33:07,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2023-01-10 13:33:07,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-01-10 13:33:07,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-01-10 13:33:07,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2023-01-10 13:33:07,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2023-01-10 13:33:07,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2023-01-10 13:33:07,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2023-01-10 13:33:07,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:33:13,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:33:13,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:33:13,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:33:13,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:33:13,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:33:13,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:33:13,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:33:13,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:33:13,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:33:13,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:33:13,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-01-10 13:33:13,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2023-01-10 13:33:13,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-01-10 13:33:13,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-01-10 13:33:13,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-01-10 13:33:13,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2023-01-10 13:33:13,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2023-01-10 13:33:13,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2023-01-10 13:33:13,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2023-01-10 13:33:13,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-01-10 13:33:13,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:33:13,776 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:33:13,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:33:13,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1006792433, now seen corresponding path program 17 times [2023-01-10 13:33:13,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:33:13,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972712517] [2023-01-10 13:33:13,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:33:13,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:33:13,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:33:19,497 INFO L134 CoverageAnalysis]: Checked inductivity of 6237 backedges. 1617 proven. 3945 refuted. 0 times theorem prover too weak. 675 trivial. 0 not checked. [2023-01-10 13:33:19,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:33:19,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972712517] [2023-01-10 13:33:19,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972712517] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:33:19,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962401274] [2023-01-10 13:33:19,498 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-01-10 13:33:19,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:33:19,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:33:19,499 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-10 13:33:19,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-01-10 13:33:50,977 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 38 check-sat command(s) [2023-01-10 13:33:50,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 13:33:51,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 2657 conjuncts, 114 conjunts are in the unsatisfiable core [2023-01-10 13:33:51,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:33:55,233 INFO L134 CoverageAnalysis]: Checked inductivity of 6237 backedges. 3438 proven. 2232 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2023-01-10 13:33:55,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:34:01,987 INFO L134 CoverageAnalysis]: Checked inductivity of 6237 backedges. 1727 proven. 3984 refuted. 0 times theorem prover too weak. 526 trivial. 0 not checked. [2023-01-10 13:34:01,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962401274] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 13:34:01,987 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 13:34:01,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [78, 79, 93] total 242 [2023-01-10 13:34:01,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293401762] [2023-01-10 13:34:01,988 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 13:34:01,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 242 states [2023-01-10 13:34:01,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:34:01,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 242 interpolants. [2023-01-10 13:34:01,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7485, Invalid=50837, Unknown=0, NotChecked=0, Total=58322 [2023-01-10 13:34:01,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:34:01,999 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:34:02,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 242 states, 242 states have (on average 5.008264462809917) internal successors, (1212), 242 states have internal predecessors, (1212), 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 13:34:02,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:34:02,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:34:02,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:34:02,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:34:02,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:34:02,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:34:02,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:34:02,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:34:02,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:34:02,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:34:02,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2023-01-10 13:34:02,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2023-01-10 13:34:02,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-01-10 13:34:02,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-01-10 13:34:02,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2023-01-10 13:34:02,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2023-01-10 13:34:02,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2023-01-10 13:34:02,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2023-01-10 13:34:02,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 130 states. [2023-01-10 13:34:02,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:34:08,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:34:08,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:34:08,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:34:08,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:34:08,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:34:08,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:34:08,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:34:08,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:34:08,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:34:08,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:34:08,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-01-10 13:34:08,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2023-01-10 13:34:08,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-01-10 13:34:08,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-01-10 13:34:08,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-01-10 13:34:08,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2023-01-10 13:34:08,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2023-01-10 13:34:08,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2023-01-10 13:34:08,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2023-01-10 13:34:08,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2023-01-10 13:34:08,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-01-10 13:34:08,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:34:08,267 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:34:08,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:34:08,268 INFO L85 PathProgramCache]: Analyzing trace with hash -899673692, now seen corresponding path program 18 times [2023-01-10 13:34:08,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:34:08,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425821151] [2023-01-10 13:34:08,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:34:08,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:34:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:34:14,502 INFO L134 CoverageAnalysis]: Checked inductivity of 6430 backedges. 1689 proven. 4095 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2023-01-10 13:34:14,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:34:14,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425821151] [2023-01-10 13:34:14,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425821151] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:34:14,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965077122] [2023-01-10 13:34:14,502 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-01-10 13:34:14,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:34:14,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:34:14,504 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-10 13:34:14,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-01-10 13:35:03,817 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 38 check-sat command(s) [2023-01-10 13:35:03,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 13:35:03,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 2671 conjuncts, 38 conjunts are in the unsatisfiable core [2023-01-10 13:35:03,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:35:06,105 INFO L134 CoverageAnalysis]: Checked inductivity of 6430 backedges. 1705 proven. 1550 refuted. 0 times theorem prover too weak. 3175 trivial. 0 not checked. [2023-01-10 13:35:06,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:35:08,407 INFO L134 CoverageAnalysis]: Checked inductivity of 6430 backedges. 176 proven. 3079 refuted. 0 times theorem prover too weak. 3175 trivial. 0 not checked. [2023-01-10 13:35:08,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965077122] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 13:35:08,408 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 13:35:08,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 30, 30] total 136 [2023-01-10 13:35:08,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564155045] [2023-01-10 13:35:08,408 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 13:35:08,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 136 states [2023-01-10 13:35:08,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:35:08,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 136 interpolants. [2023-01-10 13:35:08,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1591, Invalid=16769, Unknown=0, NotChecked=0, Total=18360 [2023-01-10 13:35:08,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:35:08,413 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:35:08,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 136 states, 136 states have (on average 6.830882352941177) internal successors, (929), 136 states have internal predecessors, (929), 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 13:35:08,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:35:08,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:35:08,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:35:08,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:35:08,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:35:08,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:35:08,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:35:08,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:35:08,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:35:08,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:35:08,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2023-01-10 13:35:08,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2023-01-10 13:35:08,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-01-10 13:35:08,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-01-10 13:35:08,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2023-01-10 13:35:08,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2023-01-10 13:35:08,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2023-01-10 13:35:08,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2023-01-10 13:35:08,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 130 states. [2023-01-10 13:35:08,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2023-01-10 13:35:08,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:35:17,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:35:17,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:35:17,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:35:17,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:35:17,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:35:17,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:35:17,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:35:17,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:35:17,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:35:17,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:35:17,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-01-10 13:35:17,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2023-01-10 13:35:17,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-01-10 13:35:17,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-01-10 13:35:17,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-01-10 13:35:17,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2023-01-10 13:35:17,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2023-01-10 13:35:17,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2023-01-10 13:35:17,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2023-01-10 13:35:17,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2023-01-10 13:35:17,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2023-01-10 13:35:17,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-01-10 13:35:17,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:35:17,317 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:35:17,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:35:17,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1019976302, now seen corresponding path program 19 times [2023-01-10 13:35:17,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:35:17,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465729736] [2023-01-10 13:35:17,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:35:17,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:35:17,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:35:24,843 INFO L134 CoverageAnalysis]: Checked inductivity of 6688 backedges. 1953 proven. 4151 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2023-01-10 13:35:24,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:35:24,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465729736] [2023-01-10 13:35:24,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465729736] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:35:24,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624892617] [2023-01-10 13:35:24,843 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-01-10 13:35:24,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:35:24,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:35:24,845 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-10 13:35:24,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-01-10 13:35:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:35:25,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 2699 conjuncts, 84 conjunts are in the unsatisfiable core [2023-01-10 13:35:25,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:35:30,250 INFO L134 CoverageAnalysis]: Checked inductivity of 6688 backedges. 3543 proven. 2626 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2023-01-10 13:35:30,250 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:35:36,682 INFO L134 CoverageAnalysis]: Checked inductivity of 6688 backedges. 3044 proven. 3125 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2023-01-10 13:35:36,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624892617] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 13:35:36,683 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 13:35:36,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [84, 84, 84] total 244 [2023-01-10 13:35:36,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777754265] [2023-01-10 13:35:36,683 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 13:35:36,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 244 states [2023-01-10 13:35:36,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:35:36,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 244 interpolants. [2023-01-10 13:35:36,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8377, Invalid=50915, Unknown=0, NotChecked=0, Total=59292 [2023-01-10 13:35:36,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:35:36,691 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:35:36,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 244 states, 244 states have (on average 5.139344262295082) internal successors, (1254), 244 states have internal predecessors, (1254), 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 13:35:36,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:35:36,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:35:36,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:35:36,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:35:36,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:35:36,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:35:36,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:35:36,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:35:36,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:35:36,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:35:36,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2023-01-10 13:35:36,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2023-01-10 13:35:36,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-01-10 13:35:36,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-01-10 13:35:36,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2023-01-10 13:35:36,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2023-01-10 13:35:36,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2023-01-10 13:35:36,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2023-01-10 13:35:36,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 130 states. [2023-01-10 13:35:36,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2023-01-10 13:35:36,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 174 states. [2023-01-10 13:35:36,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:35:42,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:35:42,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:35:42,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:35:42,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:35:42,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:35:42,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:35:42,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:35:42,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:35:42,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:35:42,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:35:42,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-01-10 13:35:42,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2023-01-10 13:35:42,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-01-10 13:35:42,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-01-10 13:35:42,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-01-10 13:35:42,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2023-01-10 13:35:42,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2023-01-10 13:35:42,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2023-01-10 13:35:42,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2023-01-10 13:35:42,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2023-01-10 13:35:42,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2023-01-10 13:35:42,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2023-01-10 13:35:42,258 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-01-10 13:35:42,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-01-10 13:35:42,449 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:35:42,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:35:42,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1513338663, now seen corresponding path program 20 times [2023-01-10 13:35:42,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:35:42,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952412984] [2023-01-10 13:35:42,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:35:42,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:35:42,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:35:49,538 INFO L134 CoverageAnalysis]: Checked inductivity of 6897 backedges. 2058 proven. 4280 refuted. 0 times theorem prover too weak. 559 trivial. 0 not checked. [2023-01-10 13:35:49,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:35:49,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952412984] [2023-01-10 13:35:49,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952412984] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:35:49,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985739058] [2023-01-10 13:35:49,539 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-10 13:35:49,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:35:49,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:35:49,541 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-10 13:35:49,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-01-10 13:35:50,160 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-10 13:35:50,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 13:35:50,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 2713 conjuncts, 30 conjunts are in the unsatisfiable core [2023-01-10 13:35:50,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:35:52,261 INFO L134 CoverageAnalysis]: Checked inductivity of 6897 backedges. 3418 proven. 232 refuted. 0 times theorem prover too weak. 3247 trivial. 0 not checked. [2023-01-10 13:35:52,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:35:54,452 INFO L134 CoverageAnalysis]: Checked inductivity of 6897 backedges. 2174 proven. 1476 refuted. 0 times theorem prover too weak. 3247 trivial. 0 not checked. [2023-01-10 13:35:54,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985739058] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 13:35:54,453 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 13:35:54,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [87, 30, 30] total 142 [2023-01-10 13:35:54,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138731062] [2023-01-10 13:35:54,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 13:35:54,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 142 states [2023-01-10 13:35:54,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:35:54,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 142 interpolants. [2023-01-10 13:35:54,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1872, Invalid=18150, Unknown=0, NotChecked=0, Total=20022 [2023-01-10 13:35:54,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:35:54,457 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:35:54,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 142 states, 142 states have (on average 6.774647887323944) internal successors, (962), 142 states have internal predecessors, (962), 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 13:35:54,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:35:54,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:35:54,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:35:54,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:35:54,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:35:54,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:35:54,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:35:54,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:35:54,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:35:54,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:35:54,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2023-01-10 13:35:54,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2023-01-10 13:35:54,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-01-10 13:35:54,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-01-10 13:35:54,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2023-01-10 13:35:54,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2023-01-10 13:35:54,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2023-01-10 13:35:54,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2023-01-10 13:35:54,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 130 states. [2023-01-10 13:35:54,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2023-01-10 13:35:54,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 174 states. [2023-01-10 13:35:54,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 115 states. [2023-01-10 13:35:54,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:36:03,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:36:03,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:36:03,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:36:03,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:36:03,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:36:03,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:36:03,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:36:03,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:36:03,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:36:03,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:36:03,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-01-10 13:36:03,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2023-01-10 13:36:03,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-01-10 13:36:03,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-01-10 13:36:03,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-01-10 13:36:03,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2023-01-10 13:36:03,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2023-01-10 13:36:03,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2023-01-10 13:36:03,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2023-01-10 13:36:03,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2023-01-10 13:36:03,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2023-01-10 13:36:03,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2023-01-10 13:36:03,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 185 states. [2023-01-10 13:36:03,212 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-01-10 13:36:03,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-01-10 13:36:03,403 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:36:03,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:36:03,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1366468885, now seen corresponding path program 21 times [2023-01-10 13:36:03,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:36:03,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201007646] [2023-01-10 13:36:03,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:36:03,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:36:03,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:36:10,619 INFO L134 CoverageAnalysis]: Checked inductivity of 7179 backedges. 2139 proven. 4436 refuted. 0 times theorem prover too weak. 604 trivial. 0 not checked. [2023-01-10 13:36:10,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:36:10,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201007646] [2023-01-10 13:36:10,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201007646] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:36:10,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093496545] [2023-01-10 13:36:10,619 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-10 13:36:10,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:36:10,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:36:10,620 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-10 13:36:10,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-01-10 13:37:06,188 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 32 check-sat command(s) [2023-01-10 13:37:06,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 13:37:06,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 2501 conjuncts, 39 conjunts are in the unsatisfiable core [2023-01-10 13:37:06,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:37:08,631 INFO L134 CoverageAnalysis]: Checked inductivity of 7179 backedges. 3393 proven. 297 refuted. 0 times theorem prover too weak. 3489 trivial. 0 not checked. [2023-01-10 13:37:08,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:37:11,077 INFO L134 CoverageAnalysis]: Checked inductivity of 7179 backedges. 1417 proven. 2273 refuted. 0 times theorem prover too weak. 3489 trivial. 0 not checked. [2023-01-10 13:37:11,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093496545] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 13:37:11,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 13:37:11,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [90, 33, 33] total 151 [2023-01-10 13:37:11,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069113832] [2023-01-10 13:37:11,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 13:37:11,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 151 states [2023-01-10 13:37:11,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:37:11,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 151 interpolants. [2023-01-10 13:37:11,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2093, Invalid=20557, Unknown=0, NotChecked=0, Total=22650 [2023-01-10 13:37:11,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:37:11,080 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:37:11,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 151 states, 151 states have (on average 6.701986754966887) internal successors, (1012), 151 states have internal predecessors, (1012), 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 13:37:11,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:37:11,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:37:11,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:37:11,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:37:11,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:37:11,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:37:11,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:37:11,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:37:11,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:37:11,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:37:11,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2023-01-10 13:37:11,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2023-01-10 13:37:11,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-01-10 13:37:11,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-01-10 13:37:11,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2023-01-10 13:37:11,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2023-01-10 13:37:11,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2023-01-10 13:37:11,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2023-01-10 13:37:11,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 130 states. [2023-01-10 13:37:11,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2023-01-10 13:37:11,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 174 states. [2023-01-10 13:37:11,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 115 states. [2023-01-10 13:37:11,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 185 states. [2023-01-10 13:37:11,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:37:19,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:37:19,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:37:19,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:37:19,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:37:19,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:37:19,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:37:19,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:37:19,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:37:19,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:37:19,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:37:19,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-01-10 13:37:19,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2023-01-10 13:37:19,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-01-10 13:37:19,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-01-10 13:37:19,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-01-10 13:37:19,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2023-01-10 13:37:19,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2023-01-10 13:37:19,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2023-01-10 13:37:19,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2023-01-10 13:37:19,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2023-01-10 13:37:19,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2023-01-10 13:37:19,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2023-01-10 13:37:19,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 185 states. [2023-01-10 13:37:19,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 194 states. [2023-01-10 13:37:19,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-01-10 13:37:20,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:37:20,009 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:37:20,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:37:20,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1606419203, now seen corresponding path program 22 times [2023-01-10 13:37:20,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:37:20,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29553829] [2023-01-10 13:37:20,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:37:20,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:37:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:37:27,462 INFO L134 CoverageAnalysis]: Checked inductivity of 7477 backedges. 2439 proven. 4444 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2023-01-10 13:37:27,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:37:27,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29553829] [2023-01-10 13:37:27,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29553829] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:37:27,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553334747] [2023-01-10 13:37:27,463 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-01-10 13:37:27,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:37:27,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:37:27,464 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-10 13:37:27,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-01-10 13:37:27,965 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-01-10 13:37:27,965 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 13:37:27,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 1454 conjuncts, 105 conjunts are in the unsatisfiable core [2023-01-10 13:37:27,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:37:35,600 INFO L134 CoverageAnalysis]: Checked inductivity of 7477 backedges. 3648 proven. 3277 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-01-10 13:37:35,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:37:40,109 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-01-10 13:37:40,109 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 20 treesize of output 4 [2023-01-10 13:37:45,335 INFO L134 CoverageAnalysis]: Checked inductivity of 7477 backedges. 2846 proven. 4079 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-01-10 13:37:45,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553334747] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 13:37:45,335 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 13:37:45,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [93, 93, 93] total 271 [2023-01-10 13:37:45,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100777304] [2023-01-10 13:37:45,335 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 13:37:45,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 271 states [2023-01-10 13:37:45,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:37:45,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 271 interpolants. [2023-01-10 13:37:45,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9427, Invalid=63743, Unknown=0, NotChecked=0, Total=73170 [2023-01-10 13:37:45,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:37:45,341 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:37:45,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 271 states, 271 states have (on average 5.070110701107011) internal successors, (1374), 271 states have internal predecessors, (1374), 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 13:37:45,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:37:45,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 13:37:45,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-01-10 13:37:45,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2023-01-10 13:37:45,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-01-10 13:37:45,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-01-10 13:37:45,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-01-10 13:37:45,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-01-10 13:37:45,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2023-01-10 13:37:45,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-01-10 13:37:45,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2023-01-10 13:37:45,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2023-01-10 13:37:45,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-01-10 13:37:45,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-01-10 13:37:45,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2023-01-10 13:37:45,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2023-01-10 13:37:45,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2023-01-10 13:37:45,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2023-01-10 13:37:45,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 130 states. [2023-01-10 13:37:45,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2023-01-10 13:37:45,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 174 states. [2023-01-10 13:37:45,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 115 states. [2023-01-10 13:37:45,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 185 states. [2023-01-10 13:37:45,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 194 states. [2023-01-10 13:37:45,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2023-01-10 13:37:48,085 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-01-10 13:37:48,107 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-10 13:37:48,107 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-10 13:37:48,107 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-10 13:37:48,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:37:48,277 WARN L619 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 329 known predicates. [2023-01-10 13:37:48,279 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-01-10 13:37:48,293 INFO L445 BasicCegarLoop]: Path program histogram: [22, 1, 1, 1] [2023-01-10 13:37:48,294 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was TIMEOUT (1/5) [2023-01-10 13:37:48,295 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-10 13:37:48,296 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-10 13:37:48,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 01:37:48 BasicIcfg [2023-01-10 13:37:48,298 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-10 13:37:48,298 INFO L158 Benchmark]: Toolchain (without parser) took 764547.05ms. Allocated memory was 277.9MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 230.6MB in the beginning and 776.3MB in the end (delta: -545.7MB). Peak memory consumption was 722.6MB. Max. memory is 8.0GB. [2023-01-10 13:37:48,298 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 199.2MB. Free memory is still 150.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-01-10 13:37:48,298 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.15ms. Allocated memory is still 277.9MB. Free memory was 230.6MB in the beginning and 218.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-01-10 13:37:48,299 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.76ms. Allocated memory is still 277.9MB. Free memory was 218.0MB in the beginning and 214.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-01-10 13:37:48,299 INFO L158 Benchmark]: Boogie Preprocessor took 31.01ms. Allocated memory is still 277.9MB. Free memory was 214.9MB in the beginning and 212.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-01-10 13:37:48,299 INFO L158 Benchmark]: RCFGBuilder took 901.41ms. Allocated memory is still 277.9MB. Free memory was 212.8MB in the beginning and 165.1MB in the end (delta: 47.7MB). Peak memory consumption was 47.2MB. Max. memory is 8.0GB. [2023-01-10 13:37:48,299 INFO L158 Benchmark]: TraceAbstraction took 763261.34ms. Allocated memory was 277.9MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 164.5MB in the beginning and 776.3MB in the end (delta: -611.7MB). Peak memory consumption was 656.5MB. Max. memory is 8.0GB. [2023-01-10 13:37:48,301 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 199.2MB. Free memory is still 150.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 293.15ms. Allocated memory is still 277.9MB. Free memory was 230.6MB in the beginning and 218.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.76ms. Allocated memory is still 277.9MB. Free memory was 218.0MB in the beginning and 214.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.01ms. Allocated memory is still 277.9MB. Free memory was 214.9MB in the beginning and 212.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 901.41ms. Allocated memory is still 277.9MB. Free memory was 212.8MB in the beginning and 165.1MB in the end (delta: 47.7MB). Peak memory consumption was 47.2MB. Max. memory is 8.0GB. * TraceAbstraction took 763261.34ms. Allocated memory was 277.9MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 164.5MB in the beginning and 776.3MB in the end (delta: -611.7MB). Peak memory consumption was 656.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 183604, independent: 155715, independent conditional: 155715, independent unconditional: 0, dependent: 27889, dependent conditional: 27889, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 157576, independent: 155715, independent conditional: 155715, independent unconditional: 0, dependent: 1861, dependent conditional: 1861, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 157576, independent: 155715, independent conditional: 155715, independent unconditional: 0, dependent: 1861, dependent conditional: 1861, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 179244, independent: 155715, independent conditional: 1692, independent unconditional: 154023, dependent: 23529, dependent conditional: 19976, dependent unconditional: 3553, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 179244, independent: 155715, independent conditional: 1692, independent unconditional: 154023, dependent: 23529, dependent conditional: 13260, dependent unconditional: 10269, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 179244, independent: 155715, independent conditional: 1692, independent unconditional: 154023, dependent: 23529, dependent conditional: 13260, dependent unconditional: 10269, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 646, independent: 548, independent conditional: 21, independent unconditional: 527, dependent: 98, dependent conditional: 93, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 646, independent: 525, independent conditional: 0, independent unconditional: 525, dependent: 121, dependent conditional: 0, dependent unconditional: 121, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 121, independent: 23, independent conditional: 21, independent unconditional: 2, dependent: 98, dependent conditional: 93, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 121, independent: 23, independent conditional: 21, independent unconditional: 2, dependent: 98, dependent conditional: 93, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 795, independent: 135, independent conditional: 107, independent unconditional: 27, dependent: 660, dependent conditional: 560, dependent unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 179244, independent: 155167, independent conditional: 1671, independent unconditional: 153496, dependent: 23431, dependent conditional: 13167, dependent unconditional: 10264, unknown: 646, unknown conditional: 114, unknown unconditional: 532] , Statistics on independence cache: Total cache size (in pairs): 646, Positive cache size: 548, Positive conditional cache size: 21, Positive unconditional cache size: 527, Negative cache size: 98, Negative conditional cache size: 93, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 6716, Maximal queried relation: 17, Independence queries for same thread: 26028 - StatisticsResult: Traversal Statistics Data States: 1052, Transitions: 1586, Traversal time: 415395810.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 106 - StatisticsResult: Traversal Statistics Data States: 1052, Transitions: 1593, Traversal time: 80472147.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 106 - StatisticsResult: Traversal Statistics Data States: 1059, Transitions: 1600, Traversal time: 150162255.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 106 - StatisticsResult: Traversal Statistics Data States: 1066, Transitions: 1607, Traversal time: 170128080.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 106 - StatisticsResult: Traversal Statistics Data States: 716, Transitions: 1009, Traversal time: 1180766882.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 63 - StatisticsResult: Traversal Statistics Data States: 1786, Transitions: 2537, Traversal time: 677711878.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 203 - StatisticsResult: Traversal Statistics Data States: 1794, Transitions: 2545, Traversal time: 329621021.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 203 - StatisticsResult: Traversal Statistics Data States: 1812, Transitions: 2563, Traversal time: 1314055518.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 203 - StatisticsResult: Traversal Statistics Data States: 1826, Transitions: 2577, Traversal time: 749357751.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 203 - StatisticsResult: Traversal Statistics Data States: 2358, Transitions: 3244, Traversal time: 43073916218.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 296 - StatisticsResult: Traversal Statistics Data States: 3544, Transitions: 4967, Traversal time: 893753154.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 463 - StatisticsResult: Traversal Statistics Data States: 3554, Transitions: 4977, Traversal time: 1234685857.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 463 - StatisticsResult: Traversal Statistics Data States: 4185, Transitions: 5854, Traversal time: 39601670165.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 565 - StatisticsResult: Traversal Statistics Data States: 524, Transitions: 598, Traversal time: 390607655.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 25 - StatisticsResult: Traversal Statistics Data States: 535, Transitions: 609, Traversal time: 663084909.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 25 - StatisticsResult: Traversal Statistics Data States: 1050, Transitions: 1287, Traversal time: 673849811.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 66 - StatisticsResult: Traversal Statistics Data States: 1066, Transitions: 1303, Traversal time: 1905057909.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 66 - StatisticsResult: Traversal Statistics Data States: 1082, Transitions: 1319, Traversal time: 2326744500.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 66 - StatisticsResult: Traversal Statistics Data States: 1098, Transitions: 1335, Traversal time: 2715252375.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 66 - StatisticsResult: Traversal Statistics Data States: 1188, Transitions: 1425, Traversal time: 6098822405.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 66 - StatisticsResult: Traversal Statistics Data States: 1202, Transitions: 1439, Traversal time: 5964661548.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 66 - StatisticsResult: Traversal Statistics Data States: 1218, Transitions: 1455, Traversal time: 8550358572.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 66 - StatisticsResult: Traversal Statistics Data States: 1226, Transitions: 1463, Traversal time: 5458078465.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 66 - StatisticsResult: Traversal Statistics Data States: 1242, Transitions: 1479, Traversal time: 8657015166.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 66 - StatisticsResult: Traversal Statistics Data States: 1258, Transitions: 1495, Traversal time: 8641125984.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 66 - StatisticsResult: Traversal Statistics Data States: 194, Transitions: 195, Traversal time: 2726638531.0ns - TimeoutResultAtElement [Line: 150]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 329 known predicates. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION with 1 thread instances CFG has 9 procedures, 251 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 763077200112.0ns, OverallIterations: 25, TraceHistogramMax: 0, PathProgramHistogramMax: 22, EmptinessCheckTime: 188417380632.0ns, FeasibilityCheckTime: 570011046267.0ns, RefinementTime: 100098904.0ns, AutomataDifference: 0.0ns, DeadEndRemovalTime: 0.0ns, HoareAnnotationTime: 0.0ns, InitialAbstractionConstructionTime: 20845889.0ns, HoareTripleCheckerStatistics: 297 mSolverCounterUnknown, 23448 SdHoareTripleChecker+Valid, 27242725756.0ns IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23448 mSDsluCounter, 105774 SdHoareTripleChecker+Invalid, 24243524376.0ns Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 100633 mSDsCounter, 904 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36342 IncrementalHoareTripleChecker+Invalid, 37543 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 904 mSolverCounterUnsat, 5141 mSDtfsCounter, 36342 mSolverCounterSat, 344552570.0ns SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: No data available, 0.0ns BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 1700, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ns DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1597026174.0ns SsaConstructionTime, 145933445778.0ns SatisfiabilityAnalysisTime, 418586874100.0ns InterpolantComputationTime, 20364 NumberOfCodeBlocks, 19690 NumberOfCodeBlocksAsserted, 221 NumberOfCheckSat, 30192 ConstructedInterpolants, 1169 QuantifiedInterpolants, 291719 SizeOfPredicates, 853 NumberOfNonLiveVariables, 31677 ConjunctsInSsa, 1310 ConjunctsInUnsatCore, 69 InterpolantComputations, 3 PerfectInterpolantSequences, 114700/187276 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown