/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-nonblocking-cntr-alt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dpor-d6e1636 [2023-01-10 14:00:10,180 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-10 14:00:10,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-10 14:00:10,201 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-10 14:00:10,201 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-10 14:00:10,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-10 14:00:10,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-10 14:00:10,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-10 14:00:10,205 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-10 14:00:10,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-10 14:00:10,206 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-10 14:00:10,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-10 14:00:10,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-10 14:00:10,207 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-10 14:00:10,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-10 14:00:10,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-10 14:00:10,209 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-10 14:00:10,210 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-10 14:00:10,211 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-10 14:00:10,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-10 14:00:10,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-10 14:00:10,213 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-10 14:00:10,214 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-10 14:00:10,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-10 14:00:10,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-10 14:00:10,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-10 14:00:10,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-10 14:00:10,219 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-10 14:00:10,219 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-10 14:00:10,220 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-10 14:00:10,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-10 14:00:10,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-10 14:00:10,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-10 14:00:10,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-10 14:00:10,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-10 14:00:10,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-10 14:00:10,226 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2023-01-10 14:00:10,249 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-10 14:00:10,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-10 14:00:10,250 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-01-10 14:00:10,250 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-01-10 14:00:10,251 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-10 14:00:10,251 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-10 14:00:10,251 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-10 14:00:10,251 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-10 14:00:10,251 INFO L138 SettingsManager]: * Use SBE=true [2023-01-10 14:00:10,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-10 14:00:10,252 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-10 14:00:10,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-10 14:00:10,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-10 14:00:10,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-10 14:00:10,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-10 14:00:10,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-10 14:00:10,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-10 14:00:10,252 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-10 14:00:10,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-10 14:00:10,253 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-10 14:00:10,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-10 14:00:10,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-10 14:00:10,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-10 14:00:10,253 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-10 14:00:10,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-10 14:00:10,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-10 14:00:10,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-10 14:00:10,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-10 14:00:10,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-10 14:00:10,254 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-10 14:00:10,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-10 14:00:10,254 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-01-10 14:00:10,254 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-01-10 14:00:10,254 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-01-10 14:00:10,254 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2023-01-10 14:00:10,254 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2023-01-10 14:00:10,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-10 14:00:10,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-10 14:00:10,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-10 14:00:10,418 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-10 14:00:10,419 INFO L275 PluginConnector]: CDTParser initialized [2023-01-10 14:00:10,419 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c [2023-01-10 14:00:11,328 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-10 14:00:11,480 INFO L351 CDTParser]: Found 1 translation units. [2023-01-10 14:00:11,480 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c [2023-01-10 14:00:11,484 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68b87aebc/a9b5f1b066934a7db08810a17c0e735a/FLAG2e9542d99 [2023-01-10 14:00:11,496 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68b87aebc/a9b5f1b066934a7db08810a17c0e735a [2023-01-10 14:00:11,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-10 14:00:11,498 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-10 14:00:11,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-10 14:00:11,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-10 14:00:11,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-10 14:00:11,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:00:11" (1/1) ... [2023-01-10 14:00:11,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24f2a20a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:00:11, skipping insertion in model container [2023-01-10 14:00:11,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:00:11" (1/1) ... [2023-01-10 14:00:11,507 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-10 14:00:11,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-10 14:00:11,619 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-nonblocking-cntr-alt.wvr.c[2098,2111] [2023-01-10 14:00:11,621 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-10 14:00:11,627 INFO L203 MainTranslator]: Completed pre-run [2023-01-10 14:00:11,638 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-nonblocking-cntr-alt.wvr.c[2098,2111] [2023-01-10 14:00:11,639 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-10 14:00:11,643 WARN L663 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-10 14:00:11,644 WARN L663 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-10 14:00:11,648 INFO L208 MainTranslator]: Completed translation [2023-01-10 14:00:11,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:00:11 WrapperNode [2023-01-10 14:00:11,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-10 14:00:11,649 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-10 14:00:11,649 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-10 14:00:11,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-10 14:00:11,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:00:11" (1/1) ... [2023-01-10 14:00:11,658 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:00:11" (1/1) ... [2023-01-10 14:00:11,669 INFO L138 Inliner]: procedures = 21, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2023-01-10 14:00:11,669 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-10 14:00:11,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-10 14:00:11,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-10 14:00:11,670 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-10 14:00:11,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:00:11" (1/1) ... [2023-01-10 14:00:11,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:00:11" (1/1) ... [2023-01-10 14:00:11,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:00:11" (1/1) ... [2023-01-10 14:00:11,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:00:11" (1/1) ... [2023-01-10 14:00:11,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:00:11" (1/1) ... [2023-01-10 14:00:11,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:00:11" (1/1) ... [2023-01-10 14:00:11,686 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:00:11" (1/1) ... [2023-01-10 14:00:11,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:00:11" (1/1) ... [2023-01-10 14:00:11,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-10 14:00:11,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-10 14:00:11,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-10 14:00:11,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-10 14:00:11,689 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:00:11" (1/1) ... [2023-01-10 14:00:11,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-10 14:00:11,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:00:11,724 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 14:00:11,744 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 14:00:11,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-10 14:00:11,755 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-10 14:00:11,756 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-10 14:00:11,756 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-10 14:00:11,756 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-10 14:00:11,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-10 14:00:11,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-10 14:00:11,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-10 14:00:11,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-10 14:00:11,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-10 14:00:11,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-10 14:00:11,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-10 14:00:11,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-10 14:00:11,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-10 14:00:11,758 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 14:00:11,837 INFO L236 CfgBuilder]: Building ICFG [2023-01-10 14:00:11,839 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-10 14:00:11,988 INFO L277 CfgBuilder]: Performing block encoding [2023-01-10 14:00:12,032 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-10 14:00:12,032 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-01-10 14:00:12,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:00:12 BoogieIcfgContainer [2023-01-10 14:00:12,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-10 14:00:12,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-10 14:00:12,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-10 14:00:12,050 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-10 14:00:12,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:00:11" (1/3) ... [2023-01-10 14:00:12,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@753b9f50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:00:12, skipping insertion in model container [2023-01-10 14:00:12,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:00:11" (2/3) ... [2023-01-10 14:00:12,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@753b9f50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:00:12, skipping insertion in model container [2023-01-10 14:00:12,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:00:12" (3/3) ... [2023-01-10 14:00:12,051 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-nonblocking-cntr-alt.wvr.c [2023-01-10 14:00:12,058 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-01-10 14:00:12,065 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-10 14:00:12,065 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-10 14:00:12,065 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-10 14:00:12,123 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-10 14:00:12,151 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 14:00:12,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 14:00:12,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:00:12,153 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 14:00:12,154 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 14:00:12,176 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 14:00:12,181 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-01-10 14:00:12,185 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;@6d6fe53b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 14:00:12,185 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 14:00:12,316 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:00:12,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:00:12,321 INFO L85 PathProgramCache]: Analyzing trace with hash 957286009, now seen corresponding path program 1 times [2023-01-10 14:00:12,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:00:12,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057895315] [2023-01-10 14:00:12,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:00:12,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:00:12,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:00:12,537 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-10 14:00:12,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:00:12,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057895315] [2023-01-10 14:00:12,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057895315] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 14:00:12,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 14:00:12,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-10 14:00:12,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145332580] [2023-01-10 14:00:12,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 14:00:12,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-10 14:00:12,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:00:12,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-10 14:00:12,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-10 14:00:12,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:00:12,562 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:00:12,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 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 14:00:12,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:00:12,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:00:12,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-10 14:00:12,597 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:00:12,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:00:12,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1576848603, now seen corresponding path program 1 times [2023-01-10 14:00:12,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:00:12,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033554497] [2023-01-10 14:00:12,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:00:12,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:00:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:00:12,895 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:00:12,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:00:12,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033554497] [2023-01-10 14:00:12,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033554497] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:00:12,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336803123] [2023-01-10 14:00:12,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:00:12,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:00:12,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:00:12,942 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 14:00:12,943 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 14:00:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:00:13,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 4 conjunts are in the unsatisfiable core [2023-01-10 14:00:13,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:00:13,147 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:00:13,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:00:13,290 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:00:13,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336803123] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:00:13,290 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:00:13,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2023-01-10 14:00:13,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545347009] [2023-01-10 14:00:13,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:00:13,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-01-10 14:00:13,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:00:13,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-01-10 14:00:13,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-01-10 14:00:13,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:00:13,293 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:00:13,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 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 14:00:13,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:00:13,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:00:13,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:00:13,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:00:13,371 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-01-10 14:00:13,569 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,SelfDestructingSolverStorable1 [2023-01-10 14:00:13,570 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:00:13,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:00:13,570 INFO L85 PathProgramCache]: Analyzing trace with hash -911250809, now seen corresponding path program 2 times [2023-01-10 14:00:13,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:00:13,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957339400] [2023-01-10 14:00:13,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:00:13,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:00:13,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:00:14,112 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:00:14,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:00:14,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957339400] [2023-01-10 14:00:14,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957339400] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:00:14,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075657382] [2023-01-10 14:00:14,113 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-10 14:00:14,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:00:14,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:00:14,114 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 14:00:14,116 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 14:00:14,171 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-10 14:00:14,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 14:00:14,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 26 conjunts are in the unsatisfiable core [2023-01-10 14:00:14,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:00:14,682 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:00:14,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:00:15,165 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:00:15,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1075657382] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:00:15,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:00:15,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 41 [2023-01-10 14:00:15,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466142244] [2023-01-10 14:00:15,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:00:15,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-01-10 14:00:15,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:00:15,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-01-10 14:00:15,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=1409, Unknown=0, NotChecked=0, Total=1640 [2023-01-10 14:00:15,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:00:15,172 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:00:15,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 3.4878048780487805) internal successors, (143), 41 states have internal predecessors, (143), 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 14:00:15,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:00:15,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:00:15,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:00:16,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:00:16,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:00:16,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-01-10 14:00:16,286 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 14:00:16,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:00:16,480 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:00:16,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:00:16,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1310169785, now seen corresponding path program 3 times [2023-01-10 14:00:16,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:00:16,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771238278] [2023-01-10 14:00:16,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:00:16,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:00:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:00:16,989 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 9 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:00:16,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:00:16,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771238278] [2023-01-10 14:00:16,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771238278] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:00:16,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974960566] [2023-01-10 14:00:16,990 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-10 14:00:16,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:00:16,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:00:16,991 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 14:00:16,993 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 14:00:17,044 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-01-10 14:00:17,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 14:00:17,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 38 conjunts are in the unsatisfiable core [2023-01-10 14:00:17,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:00:17,736 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:00:17,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:00:18,584 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:00:18,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974960566] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:00:18,585 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:00:18,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 59 [2023-01-10 14:00:18,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551385483] [2023-01-10 14:00:18,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:00:18,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2023-01-10 14:00:18,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:00:18,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2023-01-10 14:00:18,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=353, Invalid=3069, Unknown=0, NotChecked=0, Total=3422 [2023-01-10 14:00:18,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:00:18,587 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:00:18,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 2.9322033898305087) internal successors, (173), 59 states have internal predecessors, (173), 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 14:00:18,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:00:18,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:00:18,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2023-01-10 14:00:18,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:00:20,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:00:20,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:00:20,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-01-10 14:00:20,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2023-01-10 14:00:20,784 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-01-10 14:00:20,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:00:20,984 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:00:20,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:00:20,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1154236264, now seen corresponding path program 4 times [2023-01-10 14:00:20,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:00:20,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203305683] [2023-01-10 14:00:20,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:00:20,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:00:21,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:00:21,704 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 21 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:00:21,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:00:21,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203305683] [2023-01-10 14:00:21,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203305683] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:00:21,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846685150] [2023-01-10 14:00:21,705 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-01-10 14:00:21,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:00:21,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:00:21,706 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 14:00:21,706 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 14:00:21,757 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-01-10 14:00:21,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 14:00:21,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 51 conjunts are in the unsatisfiable core [2023-01-10 14:00:21,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:00:22,690 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:00:22,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:00:24,000 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 1 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:00:24,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846685150] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:00:24,000 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:00:24,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 31, 30] total 78 [2023-01-10 14:00:24,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210105129] [2023-01-10 14:00:24,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:00:24,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2023-01-10 14:00:24,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:00:24,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2023-01-10 14:00:24,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=468, Invalid=5538, Unknown=0, NotChecked=0, Total=6006 [2023-01-10 14:00:24,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:00:24,003 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:00:24,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 2.6794871794871793) internal successors, (209), 78 states have internal predecessors, (209), 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 14:00:24,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:00:24,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:00:24,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2023-01-10 14:00:24,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2023-01-10 14:00:24,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:00:27,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:00:27,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:00:27,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-01-10 14:00:27,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2023-01-10 14:00:27,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2023-01-10 14:00:27,953 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 14:00:28,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:00:28,149 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:00:28,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:00:28,150 INFO L85 PathProgramCache]: Analyzing trace with hash 278002214, now seen corresponding path program 5 times [2023-01-10 14:00:28,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:00:28,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916399133] [2023-01-10 14:00:28,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:00:28,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:00:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:00:28,988 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 38 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:00:28,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:00:28,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916399133] [2023-01-10 14:00:28,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916399133] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:00:28,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804800669] [2023-01-10 14:00:28,989 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-01-10 14:00:28,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:00:28,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:00:28,990 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 14:00:28,990 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 14:00:29,064 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2023-01-10 14:00:29,064 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 14:00:29,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 59 conjunts are in the unsatisfiable core [2023-01-10 14:00:29,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:00:30,135 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:00:30,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:00:31,734 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-01-10 14:00:31,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804800669] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:00:31,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:00:31,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 36, 33] total 91 [2023-01-10 14:00:31,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017786132] [2023-01-10 14:00:31,735 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:00:31,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2023-01-10 14:00:31,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:00:31,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2023-01-10 14:00:31,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=572, Invalid=7618, Unknown=0, NotChecked=0, Total=8190 [2023-01-10 14:00:31,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:00:31,740 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:00:31,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 91 states have (on average 2.5494505494505493) internal successors, (232), 91 states have internal predecessors, (232), 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 14:00:31,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:00:31,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:00:31,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2023-01-10 14:00:31,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2023-01-10 14:00:31,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2023-01-10 14:00:31,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:00:36,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:00:36,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:00:36,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-01-10 14:00:36,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2023-01-10 14:00:36,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2023-01-10 14:00:36,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2023-01-10 14:00:36,038 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 14:00:36,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:00:36,233 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:00:36,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:00:36,233 INFO L85 PathProgramCache]: Analyzing trace with hash -843626730, now seen corresponding path program 6 times [2023-01-10 14:00:36,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:00:36,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580764174] [2023-01-10 14:00:36,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:00:36,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:00:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:00:37,384 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 65 proven. 160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:00:37,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:00:37,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580764174] [2023-01-10 14:00:37,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580764174] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:00:37,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688819439] [2023-01-10 14:00:37,385 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-01-10 14:00:37,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:00:37,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:00:37,386 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 14:00:37,388 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 14:00:37,452 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2023-01-10 14:00:37,452 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 14:00:37,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 73 conjunts are in the unsatisfiable core [2023-01-10 14:00:37,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:00:39,066 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:00:39,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:00:41,320 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 205 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-01-10 14:00:41,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688819439] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:00:41,321 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:00:41,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 44, 39] total 112 [2023-01-10 14:00:41,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002368478] [2023-01-10 14:00:41,321 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:00:41,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 112 states [2023-01-10 14:00:41,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:00:41,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2023-01-10 14:00:41,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=803, Invalid=11629, Unknown=0, NotChecked=0, Total=12432 [2023-01-10 14:00:41,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:00:41,325 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:00:41,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 112 states, 112 states have (on average 2.4107142857142856) internal successors, (270), 112 states have internal predecessors, (270), 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 14:00:41,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:00:41,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:00:41,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2023-01-10 14:00:41,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2023-01-10 14:00:41,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2023-01-10 14:00:41,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2023-01-10 14:00:41,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:00:48,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:00:48,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:00:48,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-01-10 14:00:48,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2023-01-10 14:00:48,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2023-01-10 14:00:48,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2023-01-10 14:00:48,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2023-01-10 14:00:48,243 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 14:00:48,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:00:48,436 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:00:48,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:00:48,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1281307790, now seen corresponding path program 7 times [2023-01-10 14:00:48,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:00:48,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690442995] [2023-01-10 14:00:48,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:00:48,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:00:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:00:49,823 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 102 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:00:49,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:00:49,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690442995] [2023-01-10 14:00:49,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690442995] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:00:49,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866267672] [2023-01-10 14:00:49,824 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-01-10 14:00:49,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:00:49,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:00:49,826 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 14:00:49,827 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 14:00:49,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:00:49,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 87 conjunts are in the unsatisfiable core [2023-01-10 14:00:49,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:00:51,772 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 350 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:00:51,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:00:54,708 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-01-10 14:00:54,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866267672] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:00:54,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:00:54,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 52, 45] total 133 [2023-01-10 14:00:54,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496628218] [2023-01-10 14:00:54,709 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:00:54,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 133 states [2023-01-10 14:00:54,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:00:54,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 133 interpolants. [2023-01-10 14:00:54,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1095, Invalid=16461, Unknown=0, NotChecked=0, Total=17556 [2023-01-10 14:00:54,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:00:54,715 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:00:54,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 133 states, 133 states have (on average 2.3157894736842106) internal successors, (308), 133 states have internal predecessors, (308), 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 14:00:54,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:00:54,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:00:54,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2023-01-10 14:00:54,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2023-01-10 14:00:54,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2023-01-10 14:00:54,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2023-01-10 14:00:54,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 157 states. [2023-01-10 14:00:54,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:01:05,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:01:05,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:01:05,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-01-10 14:01:05,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2023-01-10 14:01:05,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2023-01-10 14:01:05,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2023-01-10 14:01:05,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2023-01-10 14:01:05,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2023-01-10 14:01:05,036 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 14:01:05,229 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,SelfDestructingSolverStorable7 [2023-01-10 14:01:05,230 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:01:05,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:01:05,231 INFO L85 PathProgramCache]: Analyzing trace with hash -745076567, now seen corresponding path program 8 times [2023-01-10 14:01:05,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:01:05,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814278269] [2023-01-10 14:01:05,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:01:05,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:01:05,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:01:05,970 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 0 proven. 727 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-01-10 14:01:05,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:01:05,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814278269] [2023-01-10 14:01:05,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814278269] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:01:05,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749141841] [2023-01-10 14:01:05,971 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-10 14:01:05,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:01:05,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:01:05,972 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 14:01:05,974 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 14:01:06,047 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-10 14:01:06,047 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 14:01:06,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 41 conjunts are in the unsatisfiable core [2023-01-10 14:01:06,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:01:06,316 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 0 proven. 727 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-01-10 14:01:06,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:01:06,699 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 234 proven. 493 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-01-10 14:01:06,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749141841] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:01:06,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:01:06,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 24 [2023-01-10 14:01:06,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947514155] [2023-01-10 14:01:06,699 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:01:06,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-01-10 14:01:06,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:01:06,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-01-10 14:01:06,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=401, Unknown=0, NotChecked=0, Total=552 [2023-01-10 14:01:06,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:01:06,701 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:01:06,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.0) internal successors, (216), 24 states have internal predecessors, (216), 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 14:01:06,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:01:06,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:01:06,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2023-01-10 14:01:06,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2023-01-10 14:01:06,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2023-01-10 14:01:06,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2023-01-10 14:01:06,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 157 states. [2023-01-10 14:01:06,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2023-01-10 14:01:06,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:01:06,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:01:06,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:01:06,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-01-10 14:01:06,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2023-01-10 14:01:06,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2023-01-10 14:01:06,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2023-01-10 14:01:06,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2023-01-10 14:01:06,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2023-01-10 14:01:06,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-01-10 14:01:06,868 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 14:01:07,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:01:07,064 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:01:07,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:01:07,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1872827911, now seen corresponding path program 9 times [2023-01-10 14:01:07,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:01:07,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338921291] [2023-01-10 14:01:07,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:01:07,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:01:07,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:01:09,486 INFO L134 CoverageAnalysis]: Checked inductivity of 866 backedges. 198 proven. 645 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-01-10 14:01:09,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:01:09,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338921291] [2023-01-10 14:01:09,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338921291] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:01:09,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601362069] [2023-01-10 14:01:09,487 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-10 14:01:09,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:01:09,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:01:09,488 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 14:01:09,489 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 14:01:09,586 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2023-01-10 14:01:09,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 14:01:09,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 128 conjunts are in the unsatisfiable core [2023-01-10 14:01:09,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:01:13,276 INFO L134 CoverageAnalysis]: Checked inductivity of 866 backedges. 0 proven. 866 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:01:13,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:01:17,327 INFO L134 CoverageAnalysis]: Checked inductivity of 866 backedges. 124 proven. 719 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-01-10 14:01:17,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601362069] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:01:17,327 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:01:17,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 75, 60] total 182 [2023-01-10 14:01:17,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969962850] [2023-01-10 14:01:17,328 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:01:17,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 182 states [2023-01-10 14:01:17,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:01:17,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 182 interpolants. [2023-01-10 14:01:17,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3385, Invalid=29557, Unknown=0, NotChecked=0, Total=32942 [2023-01-10 14:01:17,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:01:17,333 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:01:17,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 182 states, 182 states have (on average 2.230769230769231) internal successors, (406), 182 states have internal predecessors, (406), 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 14:01:17,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:01:17,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:01:17,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2023-01-10 14:01:17,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2023-01-10 14:01:17,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2023-01-10 14:01:17,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2023-01-10 14:01:17,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 157 states. [2023-01-10 14:01:17,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2023-01-10 14:01:17,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-01-10 14:01:17,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:01:29,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:01:29,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:01:29,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-01-10 14:01:29,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2023-01-10 14:01:29,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2023-01-10 14:01:29,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2023-01-10 14:01:29,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2023-01-10 14:01:29,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2023-01-10 14:01:29,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-01-10 14:01:29,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 259 states. [2023-01-10 14:01:29,852 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 14:01:30,046 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,SelfDestructingSolverStorable9 [2023-01-10 14:01:30,046 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:01:30,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:01:30,046 INFO L85 PathProgramCache]: Analyzing trace with hash -81529223, now seen corresponding path program 10 times [2023-01-10 14:01:30,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:01:30,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987109818] [2023-01-10 14:01:30,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:01:30,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:01:30,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:01:32,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1099 backedges. 268 proven. 807 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-01-10 14:01:32,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:01:32,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987109818] [2023-01-10 14:01:32,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987109818] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:01:32,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65365903] [2023-01-10 14:01:32,938 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-01-10 14:01:32,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:01:32,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:01:32,939 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 14:01:32,941 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 14:01:33,014 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-01-10 14:01:33,014 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 14:01:33,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 142 conjunts are in the unsatisfiable core [2023-01-10 14:01:33,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:01:37,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1099 backedges. 0 proven. 1099 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:01:37,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:01:42,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1099 backedges. 16 proven. 978 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-01-10 14:01:42,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65365903] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:01:42,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:01:42,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 83, 62] total 199 [2023-01-10 14:01:42,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596290226] [2023-01-10 14:01:42,848 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:01:42,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 199 states [2023-01-10 14:01:42,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:01:42,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 199 interpolants. [2023-01-10 14:01:42,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2537, Invalid=36865, Unknown=0, NotChecked=0, Total=39402 [2023-01-10 14:01:42,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:01:42,852 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:01:42,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 199 states, 199 states have (on average 2.201005025125628) internal successors, (438), 199 states have internal predecessors, (438), 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 14:01:42,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:01:42,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:01:42,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2023-01-10 14:01:42,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2023-01-10 14:01:42,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2023-01-10 14:01:42,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2023-01-10 14:01:42,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 157 states. [2023-01-10 14:01:42,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2023-01-10 14:01:42,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-01-10 14:01:42,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 259 states. [2023-01-10 14:01:42,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:02:08,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:02:08,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:02:08,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-01-10 14:02:08,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2023-01-10 14:02:08,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-01-10 14:02:08,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2023-01-10 14:02:08,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2023-01-10 14:02:08,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 231 states. [2023-01-10 14:02:08,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-01-10 14:02:08,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 370 states. [2023-01-10 14:02:08,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 308 states. [2023-01-10 14:02:08,379 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 14:02:08,579 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,SelfDestructingSolverStorable10 [2023-01-10 14:02:08,579 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:02:08,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:02:08,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1189782621, now seen corresponding path program 11 times [2023-01-10 14:02:08,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:02:08,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8349719] [2023-01-10 14:02:08,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:02:08,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:02:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:02:09,137 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 0 proven. 504 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-01-10 14:02:09,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:02:09,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8349719] [2023-01-10 14:02:09,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8349719] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:02:09,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407561961] [2023-01-10 14:02:09,138 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-01-10 14:02:09,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:02:09,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:02:09,139 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 14:02:09,141 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 14:02:09,213 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2023-01-10 14:02:09,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 14:02:09,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 41 conjunts are in the unsatisfiable core [2023-01-10 14:02:09,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:02:09,491 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 0 proven. 504 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-01-10 14:02:09,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:02:09,892 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 192 proven. 312 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-01-10 14:02:09,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407561961] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:02:09,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:02:09,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 30 [2023-01-10 14:02:09,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854248223] [2023-01-10 14:02:09,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:02:09,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-01-10 14:02:09,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:02:09,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-01-10 14:02:09,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=638, Unknown=0, NotChecked=0, Total=870 [2023-01-10 14:02:09,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:02:09,895 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:02:09,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 8.633333333333333) internal successors, (259), 30 states have internal predecessors, (259), 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 14:02:09,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:02:09,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:02:09,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2023-01-10 14:02:09,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2023-01-10 14:02:09,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2023-01-10 14:02:09,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 130 states. [2023-01-10 14:02:09,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 166 states. [2023-01-10 14:02:09,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 231 states. [2023-01-10 14:02:09,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-01-10 14:02:09,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 370 states. [2023-01-10 14:02:09,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 308 states. [2023-01-10 14:02:09,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:02:10,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:02:10,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:02:10,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-01-10 14:02:10,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2023-01-10 14:02:10,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-01-10 14:02:10,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2023-01-10 14:02:10,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2023-01-10 14:02:10,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 231 states. [2023-01-10 14:02:10,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-01-10 14:02:10,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 370 states. [2023-01-10 14:02:10,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 308 states. [2023-01-10 14:02:10,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-01-10 14:02:10,198 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 14:02:10,398 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,SelfDestructingSolverStorable11 [2023-01-10 14:02:10,398 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:02:10,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:02:10,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1710834689, now seen corresponding path program 12 times [2023-01-10 14:02:10,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:02:10,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515695118] [2023-01-10 14:02:10,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:02:10,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:02:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:02:12,737 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 297 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:02:12,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:02:12,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515695118] [2023-01-10 14:02:12,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515695118] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:02:12,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588676255] [2023-01-10 14:02:12,738 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-01-10 14:02:12,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:02:12,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:02:12,739 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 14:02:12,741 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 14:02:12,819 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2023-01-10 14:02:12,819 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 14:02:12,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 104 conjunts are in the unsatisfiable core [2023-01-10 14:02:12,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:02:15,604 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 0 proven. 572 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:02:15,605 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:02:19,496 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 111 proven. 461 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:02:19,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588676255] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:02:19,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:02:19,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63, 63] total 176 [2023-01-10 14:02:19,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210746744] [2023-01-10 14:02:19,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:02:19,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 176 states [2023-01-10 14:02:19,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:02:19,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 176 interpolants. [2023-01-10 14:02:19,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3868, Invalid=26932, Unknown=0, NotChecked=0, Total=30800 [2023-01-10 14:02:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:02:19,501 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:02:19,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 176 states, 176 states have (on average 2.159090909090909) internal successors, (380), 176 states have internal predecessors, (380), 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 14:02:19,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:02:19,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:02:19,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2023-01-10 14:02:19,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2023-01-10 14:02:19,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2023-01-10 14:02:19,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 130 states. [2023-01-10 14:02:19,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 166 states. [2023-01-10 14:02:19,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 231 states. [2023-01-10 14:02:19,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-01-10 14:02:19,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 370 states. [2023-01-10 14:02:19,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 308 states. [2023-01-10 14:02:19,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-01-10 14:02:19,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:02:25,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:02:25,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:02:25,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-01-10 14:02:25,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2023-01-10 14:02:25,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-01-10 14:02:25,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2023-01-10 14:02:25,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2023-01-10 14:02:25,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 231 states. [2023-01-10 14:02:25,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-01-10 14:02:25,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 370 states. [2023-01-10 14:02:25,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 308 states. [2023-01-10 14:02:25,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-01-10 14:02:25,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 176 states. [2023-01-10 14:02:25,816 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-01-10 14:02:26,012 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,SelfDestructingSolverStorable12 [2023-01-10 14:02:26,013 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:02:26,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:02:26,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1469936992, now seen corresponding path program 13 times [2023-01-10 14:02:26,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:02:26,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287579512] [2023-01-10 14:02:26,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:02:26,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:02:26,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:02:28,395 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 354 proven. 311 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:02:28,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:02:28,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287579512] [2023-01-10 14:02:28,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287579512] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:02:28,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4914543] [2023-01-10 14:02:28,395 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-01-10 14:02:28,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:02:28,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:02:28,396 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 14:02:28,398 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 14:02:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:02:28,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 117 conjunts are in the unsatisfiable core [2023-01-10 14:02:28,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:02:32,154 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 0 proven. 665 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:02:32,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:03:11,155 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 0 proven. 665 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:03:11,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4914543] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:03:11,155 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:03:11,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 70, 70] total 197 [2023-01-10 14:03:11,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133453655] [2023-01-10 14:03:11,156 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:03:11,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 197 states [2023-01-10 14:03:11,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:03:11,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 197 interpolants. [2023-01-10 14:03:11,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2928, Invalid=35684, Unknown=0, NotChecked=0, Total=38612 [2023-01-10 14:03:11,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:03:11,159 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:03:11,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 197 states, 197 states have (on average 2.1421319796954315) internal successors, (422), 197 states have internal predecessors, (422), 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 14:03:11,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:03:11,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:03:11,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2023-01-10 14:03:11,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2023-01-10 14:03:11,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2023-01-10 14:03:11,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 130 states. [2023-01-10 14:03:11,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 166 states. [2023-01-10 14:03:11,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 231 states. [2023-01-10 14:03:11,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-01-10 14:03:11,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 370 states. [2023-01-10 14:03:11,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 308 states. [2023-01-10 14:03:11,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-01-10 14:03:11,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 176 states. [2023-01-10 14:03:11,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:03:59,892 WARN L222 SmtUtils]: Spent 6.46s on a formula simplification. DAG size of input: 454 DAG size of output: 403 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 14:06:04,678 WARN L222 SmtUtils]: Spent 6.50s on a formula simplification. DAG size of input: 457 DAG size of output: 404 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 14:06:43,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:06:43,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:06:43,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-01-10 14:06:43,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2023-01-10 14:06:43,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-01-10 14:06:43,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2023-01-10 14:06:43,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2023-01-10 14:06:43,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 237 states. [2023-01-10 14:06:43,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-01-10 14:06:43,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 371 states. [2023-01-10 14:06:43,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 314 states. [2023-01-10 14:06:43,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-01-10 14:06:43,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2023-01-10 14:06:43,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 355 states. [2023-01-10 14:06:43,618 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 14:06:43,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:06:43,816 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:06:43,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:06:43,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1501936990, now seen corresponding path program 14 times [2023-01-10 14:06:43,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:06:43,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186115115] [2023-01-10 14:06:43,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:06:43,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:06:43,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:06:45,692 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 354 proven. 215 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:06:45,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:06:45,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186115115] [2023-01-10 14:06:45,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186115115] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:06:45,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788528600] [2023-01-10 14:06:45,693 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-10 14:06:45,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:06:45,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:06:45,694 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 14:06:45,694 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 14:06:45,764 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-10 14:06:45,764 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 14:06:45,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 107 conjunts are in the unsatisfiable core [2023-01-10 14:06:45,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:06:48,479 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 0 proven. 569 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:06:48,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:06:52,192 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 81 proven. 488 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:06:52,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788528600] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:06:52,193 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:06:52,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63, 63] total 176 [2023-01-10 14:06:52,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041718453] [2023-01-10 14:06:52,193 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:06:52,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 176 states [2023-01-10 14:06:52,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:06:52,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 176 interpolants. [2023-01-10 14:06:52,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3280, Invalid=27520, Unknown=0, NotChecked=0, Total=30800 [2023-01-10 14:06:52,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:06:52,196 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:06:52,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 176 states, 176 states have (on average 2.1420454545454546) internal successors, (377), 176 states have internal predecessors, (377), 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 14:06:52,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:06:52,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:06:52,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2023-01-10 14:06:52,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2023-01-10 14:06:52,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2023-01-10 14:06:52,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2023-01-10 14:06:52,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2023-01-10 14:06:52,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 237 states. [2023-01-10 14:06:52,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-01-10 14:06:52,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 371 states. [2023-01-10 14:06:52,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 314 states. [2023-01-10 14:06:52,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-01-10 14:06:52,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 177 states. [2023-01-10 14:06:52,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 355 states. [2023-01-10 14:06:52,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:07:12,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:07:12,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:07:12,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-01-10 14:07:12,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2023-01-10 14:07:12,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2023-01-10 14:07:12,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2023-01-10 14:07:12,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2023-01-10 14:07:12,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 243 states. [2023-01-10 14:07:12,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-01-10 14:07:12,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 380 states. [2023-01-10 14:07:12,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 323 states. [2023-01-10 14:07:12,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-01-10 14:07:12,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2023-01-10 14:07:12,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 358 states. [2023-01-10 14:07:12,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2023-01-10 14:07:12,666 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 14:07:12,860 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,SelfDestructingSolverStorable14 [2023-01-10 14:07:12,860 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:07:12,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:07:12,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1430586906, now seen corresponding path program 1 times [2023-01-10 14:07:12,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:07:12,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023610265] [2023-01-10 14:07:12,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:07:12,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:07:12,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:07:12,934 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2023-01-10 14:07:12,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:07:12,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023610265] [2023-01-10 14:07:12,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023610265] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 14:07:12,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 14:07:12,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-10 14:07:12,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401847074] [2023-01-10 14:07:12,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 14:07:12,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-10 14:07:12,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:07:12,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-10 14:07:12,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-01-10 14:07:12,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:07:12,936 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:07:12,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 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 14:07:12,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:07:12,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:07:12,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2023-01-10 14:07:12,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2023-01-10 14:07:12,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2023-01-10 14:07:12,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2023-01-10 14:07:12,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 173 states. [2023-01-10 14:07:12,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 243 states. [2023-01-10 14:07:12,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-01-10 14:07:12,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 380 states. [2023-01-10 14:07:12,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 323 states. [2023-01-10 14:07:12,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-01-10 14:07:12,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 178 states. [2023-01-10 14:07:12,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 358 states. [2023-01-10 14:07:12,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 209 states. [2023-01-10 14:07:12,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:07:35,484 WARN L222 SmtUtils]: Spent 5.25s on a formula simplification. DAG size of input: 528 DAG size of output: 454 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 14:07:45,094 WARN L222 SmtUtils]: Spent 5.48s on a formula simplification. DAG size of input: 528 DAG size of output: 470 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 14:07:51,119 WARN L222 SmtUtils]: Spent 5.53s on a formula simplification. DAG size of input: 528 DAG size of output: 471 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2023-01-10 14:12:50,266 WARN L238 SmtUtils]: Removed 24 from assertion stack [2023-01-10 14:12:50,273 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 14:12:50,274 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 14:12:50,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-01-10 14:12:50,449 WARN L619 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 710 known predicates. [2023-01-10 14:12:50,451 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-01-10 14:12:50,459 INFO L445 BasicCegarLoop]: Path program histogram: [14, 1, 1] [2023-01-10 14:12:50,461 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was TIMEOUT (1/3) [2023-01-10 14:12:50,462 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-10 14:12:50,462 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-10 14:12:50,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 02:12:50 BasicIcfg [2023-01-10 14:12:50,464 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-10 14:12:50,464 INFO L158 Benchmark]: Toolchain (without parser) took 758965.78ms. Allocated memory was 190.8MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 158.5MB in the beginning and 648.9MB in the end (delta: -490.4MB). Peak memory consumption was 532.8MB. Max. memory is 8.0GB. [2023-01-10 14:12:50,464 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 190.8MB. Free memory is still 145.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-01-10 14:12:50,464 INFO L158 Benchmark]: CACSL2BoogieTranslator took 149.44ms. Allocated memory is still 190.8MB. Free memory was 158.5MB in the beginning and 147.4MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-01-10 14:12:50,464 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.69ms. Allocated memory is still 190.8MB. Free memory was 147.4MB in the beginning and 146.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-01-10 14:12:50,464 INFO L158 Benchmark]: Boogie Preprocessor took 18.45ms. Allocated memory is still 190.8MB. Free memory was 146.0MB in the beginning and 144.9MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-01-10 14:12:50,465 INFO L158 Benchmark]: RCFGBuilder took 357.79ms. Allocated memory is still 190.8MB. Free memory was 144.7MB in the beginning and 130.2MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-01-10 14:12:50,465 INFO L158 Benchmark]: TraceAbstraction took 758416.11ms. Allocated memory was 190.8MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 129.6MB in the beginning and 648.9MB in the end (delta: -519.3MB). Peak memory consumption was 503.5MB. Max. memory is 8.0GB. [2023-01-10 14:12:50,466 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 190.8MB. Free memory is still 145.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 149.44ms. Allocated memory is still 190.8MB. Free memory was 158.5MB in the beginning and 147.4MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.69ms. Allocated memory is still 190.8MB. Free memory was 147.4MB in the beginning and 146.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.45ms. Allocated memory is still 190.8MB. Free memory was 146.0MB in the beginning and 144.9MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 357.79ms. Allocated memory is still 190.8MB. Free memory was 144.7MB in the beginning and 130.2MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 758416.11ms. Allocated memory was 190.8MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 129.6MB in the beginning and 648.9MB in the end (delta: -519.3MB). Peak memory consumption was 503.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 32947, independent: 21254, independent conditional: 21254, independent unconditional: 0, dependent: 11693, dependent conditional: 11693, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 21302, independent: 21254, independent conditional: 21254, independent unconditional: 0, dependent: 48, dependent conditional: 48, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 21302, independent: 21254, independent conditional: 21254, independent unconditional: 0, dependent: 48, dependent conditional: 48, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 22593, independent: 21254, independent conditional: 280, independent unconditional: 20974, dependent: 1339, dependent conditional: 1011, dependent unconditional: 328, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 22593, independent: 21254, independent conditional: 280, independent unconditional: 20974, dependent: 1339, dependent conditional: 942, dependent unconditional: 397, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 22593, independent: 21254, independent conditional: 280, independent unconditional: 20974, dependent: 1339, dependent conditional: 942, dependent unconditional: 397, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 231, independent: 185, independent conditional: 89, independent unconditional: 96, dependent: 46, dependent conditional: 45, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 231, independent: 96, independent conditional: 0, independent unconditional: 96, dependent: 135, dependent conditional: 0, dependent unconditional: 135, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 135, independent: 89, independent conditional: 89, independent unconditional: 0, dependent: 46, dependent conditional: 45, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 135, independent: 89, independent conditional: 89, independent unconditional: 0, dependent: 46, dependent conditional: 45, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 447, independent: 243, independent conditional: 243, independent unconditional: 0, dependent: 204, dependent conditional: 163, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 22593, independent: 21069, independent conditional: 191, independent unconditional: 20878, dependent: 1293, dependent conditional: 897, dependent unconditional: 396, unknown: 231, unknown conditional: 134, unknown unconditional: 97] , Statistics on independence cache: Total cache size (in pairs): 231, Positive cache size: 185, Positive conditional cache size: 89, Positive unconditional cache size: 96, Negative cache size: 46, Negative conditional cache size: 45, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 69, Maximal queried relation: 15, Independence queries for same thread: 11645 - StatisticsResult: Traversal Statistics Data States: 87, Transitions: 95, Traversal time: 113145084.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 3 - StatisticsResult: Traversal Statistics Data States: 87, Transitions: 97, Traversal time: 27221149.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 3 - StatisticsResult: Traversal Statistics Data States: 74, Transitions: 78, Traversal time: 60366232.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 0 - StatisticsResult: Traversal Statistics Data States: 88, Transitions: 94, Traversal time: 498407631.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 1 - StatisticsResult: Traversal Statistics Data States: 96, Transitions: 100, Traversal time: 1091766820.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 0 - StatisticsResult: Traversal Statistics Data States: 104, Transitions: 108, Traversal time: 2039885676.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 0 - StatisticsResult: Traversal Statistics Data States: 118, Transitions: 122, Traversal time: 2361387481.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 0 - StatisticsResult: Traversal Statistics Data States: 132, Transitions: 136, Traversal time: 3799952281.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 0 - StatisticsResult: Traversal Statistics Data States: 216, Transitions: 235, Traversal time: 6745908220.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 1 - StatisticsResult: Traversal Statistics Data States: 221, Transitions: 240, Traversal time: 68834459.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 1 - StatisticsResult: Traversal Statistics Data States: 236, Transitions: 255, Traversal time: 7036945413.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 1 - StatisticsResult: Traversal Statistics Data States: 2267, Transitions: 2968, Traversal time: 18376233919.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 353 - StatisticsResult: Traversal Statistics Data States: 2272, Transitions: 2973, Traversal time: 127279091.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 353 - StatisticsResult: Traversal Statistics Data States: 2290, Transitions: 2994, Traversal time: 3619018072.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 353 - StatisticsResult: Traversal Statistics Data States: 2868, Transitions: 3715, Traversal time: 128260150423.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 442 - StatisticsResult: Traversal Statistics Data States: 2963, Transitions: 3840, Traversal time: 16931594408.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 442 - StatisticsResult: Traversal Statistics Data States: 4231, Transitions: 5499, Traversal time: 337329252058.0ns - TimeoutResultAtElement [Line: 78]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 710 known predicates. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION with 1 thread instances CFG has 5 procedures, 93 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 758294602141.0ns, OverallIterations: 16, TraceHistogramMax: 0, PathProgramHistogramMax: 14, EmptinessCheckTime: 644223036946.0ns, FeasibilityCheckTime: 111135515402.0ns, RefinementTime: 58391484.0ns, AutomataDifference: 0.0ns, DeadEndRemovalTime: 0.0ns, HoareAnnotationTime: 0.0ns, InitialAbstractionConstructionTime: 9360225.0ns, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19205 SdHoareTripleChecker+Valid, 43012760538.0ns IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19205 mSDsluCounter, 89468 SdHoareTripleChecker+Invalid, 37589808406.0ns Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 86345 mSDsCounter, 3928 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 101058 IncrementalHoareTripleChecker+Invalid, 104986 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3928 mSolverCounterUnsat, 3123 mSDtfsCounter, 101058 mSolverCounterSat, 434264664.0ns SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: No data available, 0.0ns BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 2707, 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: 223058083.0ns SsaConstructionTime, 746412613.0ns SatisfiabilityAnalysisTime, 109463183863.0ns InterpolantComputationTime, 3730 NumberOfCodeBlocks, 3718 NumberOfCodeBlocksAsserted, 95 NumberOfCheckSat, 5451 ConstructedInterpolants, 0 QuantifiedInterpolants, 80055 SizeOfPredicates, 359 NumberOfNonLiveVariables, 3322 ConjunctsInSsa, 1018 ConjunctsInUnsatCore, 44 InterpolantComputations, 2 PerfectInterpolantSequences, 3445/18242 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