/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 12:24:05,258 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 12:24:05,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 12:24:05,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 12:24:05,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 12:24:05,313 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 12:24:05,315 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 12:24:05,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 12:24:05,322 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 12:24:05,326 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 12:24:05,327 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 12:24:05,328 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 12:24:05,328 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 12:24:05,330 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 12:24:05,332 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 12:24:05,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 12:24:05,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 12:24:05,335 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 12:24:05,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 12:24:05,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 12:24:05,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 12:24:05,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 12:24:05,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 12:24:05,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 12:24:05,352 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 12:24:05,355 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 12:24:05,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 12:24:05,357 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 12:24:05,357 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 12:24:05,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 12:24:05,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 12:24:05,359 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 12:24:05,359 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 12:24:05,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 12:24:05,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 12:24:05,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 12:24:05,362 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2022-01-18 12:24:05,397 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 12:24:05,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 12:24:05,398 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 12:24:05,398 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 12:24:05,398 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 12:24:05,398 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 12:24:05,399 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 12:24:05,399 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 12:24:05,399 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 12:24:05,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 12:24:05,400 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 12:24:05,400 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 12:24:05,400 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 12:24:05,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 12:24:05,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 12:24:05,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 12:24:05,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 12:24:05,401 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 12:24:05,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 12:24:05,401 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 12:24:05,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 12:24:05,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 12:24:05,401 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 12:24:05,401 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 12:24:05,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 12:24:05,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 12:24:05,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 12:24:05,402 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 12:24:05,402 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 12:24:05,402 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 12:24:05,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 12:24:05,403 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 12:24:05,403 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 12:24:05,403 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 12:24:05,403 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 12:24:05,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 12:24:05,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 12:24:05,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 12:24:05,644 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 12:24:05,647 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 12:24:05,648 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult.wvr.c [2022-01-18 12:24:05,712 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc951b906/af9f7a11eb4a48bfb198504c316cc7c2/FLAGc514bef6c [2022-01-18 12:24:06,077 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 12:24:06,077 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-mult.wvr.c [2022-01-18 12:24:06,087 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc951b906/af9f7a11eb4a48bfb198504c316cc7c2/FLAGc514bef6c [2022-01-18 12:24:06,499 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc951b906/af9f7a11eb4a48bfb198504c316cc7c2 [2022-01-18 12:24:06,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 12:24:06,502 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 12:24:06,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 12:24:06,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 12:24:06,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 12:24:06,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 12:24:06" (1/1) ... [2022-01-18 12:24:06,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@424ed449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:24:06, skipping insertion in model container [2022-01-18 12:24:06,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 12:24:06" (1/1) ... [2022-01-18 12:24:06,517 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 12:24:06,533 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 12:24:06,691 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-mult.wvr.c[4218,4231] [2022-01-18 12:24:06,700 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 12:24:06,709 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 12:24:06,741 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-mult.wvr.c[4218,4231] [2022-01-18 12:24:06,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 12:24:06,757 INFO L208 MainTranslator]: Completed translation [2022-01-18 12:24:06,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:24:06 WrapperNode [2022-01-18 12:24:06,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 12:24:06,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 12:24:06,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 12:24:06,759 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 12:24:06,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:24:06" (1/1) ... [2022-01-18 12:24:06,770 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:24:06" (1/1) ... [2022-01-18 12:24:06,795 INFO L137 Inliner]: procedures = 27, calls = 80, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 307 [2022-01-18 12:24:06,796 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 12:24:06,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 12:24:06,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 12:24:06,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 12:24:06,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:24:06" (1/1) ... [2022-01-18 12:24:06,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:24:06" (1/1) ... [2022-01-18 12:24:06,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:24:06" (1/1) ... [2022-01-18 12:24:06,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:24:06" (1/1) ... [2022-01-18 12:24:06,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:24:06" (1/1) ... [2022-01-18 12:24:06,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:24:06" (1/1) ... [2022-01-18 12:24:06,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:24:06" (1/1) ... [2022-01-18 12:24:06,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 12:24:06,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 12:24:06,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 12:24:06,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 12:24:06,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:24:06" (1/1) ... [2022-01-18 12:24:06,830 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 12:24:06,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:24:06,850 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 12:24:06,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 12:24:06,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 12:24:06,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 12:24:06,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 12:24:06,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 12:24:06,901 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 12:24:06,901 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 12:24:06,901 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 12:24:06,905 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 12:24:06,905 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 12:24:06,905 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 12:24:06,905 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-18 12:24:06,905 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-18 12:24:06,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 12:24:06,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 12:24:06,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 12:24:06,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-18 12:24:06,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 12:24:06,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 12:24:06,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 12:24:06,907 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 12:24:07,033 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 12:24:07,034 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 12:24:07,349 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 12:24:07,515 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 12:24:07,515 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-01-18 12:24:07,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 12:24:07 BoogieIcfgContainer [2022-01-18 12:24:07,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 12:24:07,519 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 12:24:07,519 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 12:24:07,522 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 12:24:07,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 12:24:06" (1/3) ... [2022-01-18 12:24:07,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a48f929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 12:24:07, skipping insertion in model container [2022-01-18 12:24:07,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:24:06" (2/3) ... [2022-01-18 12:24:07,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a48f929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 12:24:07, skipping insertion in model container [2022-01-18 12:24:07,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 12:24:07" (3/3) ... [2022-01-18 12:24:07,524 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-mult.wvr.c [2022-01-18 12:24:07,529 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 12:24:07,529 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 12:24:07,529 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 12:24:07,529 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 12:24:07,585 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,585 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,585 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,587 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,587 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,587 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,587 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,588 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,588 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,588 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,589 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,589 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,589 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,589 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,589 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,590 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,590 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,590 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,591 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,591 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,591 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,592 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,593 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,593 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,593 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,593 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,593 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,594 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,594 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,594 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,594 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,595 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,595 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,595 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,595 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,596 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,596 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,596 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,596 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,596 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,597 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,597 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,598 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,598 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,598 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,598 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,599 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,599 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,600 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,600 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,600 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,601 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,601 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,601 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,602 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,602 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,602 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,602 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,602 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,603 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,603 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,603 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,603 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,603 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,605 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,606 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,606 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,606 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,606 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,606 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,606 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,606 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,606 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,607 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,607 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,608 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,608 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,608 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,609 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,609 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,610 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,610 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,611 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,611 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,613 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,618 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,619 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,619 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,619 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,619 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,619 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,619 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,619 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,619 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,620 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,620 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,621 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,621 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,621 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,621 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,621 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,621 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,621 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,621 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,622 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,622 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,622 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,622 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,627 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,628 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,628 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,628 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,628 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,628 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,628 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,629 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,629 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,629 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,629 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,629 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,630 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,630 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,630 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,632 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,632 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,632 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,632 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,633 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,633 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,633 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,633 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,633 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,633 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,633 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,633 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,634 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,634 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,634 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,634 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,635 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,635 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,635 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,635 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,637 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:24:07,642 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-01-18 12:24:07,676 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 12:24:07,681 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 12:24:07,682 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-18 12:24:07,693 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 226 places, 231 transitions, 494 flow [2022-01-18 12:24:08,601 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 17148 states, 17147 states have (on average 4.976205750277017) internal successors, (85327), 17147 states have internal predecessors, (85327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:08,647 INFO L276 IsEmpty]: Start isEmpty. Operand has 17148 states, 17147 states have (on average 4.976205750277017) internal successors, (85327), 17147 states have internal predecessors, (85327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:08,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-01-18 12:24:08,859 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:24:08,859 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:24:08,860 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:24:08,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:24:08,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1660841253, now seen corresponding path program 1 times [2022-01-18 12:24:08,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:24:08,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513732960] [2022-01-18 12:24:08,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:24:08,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:24:09,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:24:09,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:24:09,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:24:09,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513732960] [2022-01-18 12:24:09,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513732960] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:24:09,138 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:24:09,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 12:24:09,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674410650] [2022-01-18 12:24:09,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:24:09,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 12:24:09,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:24:09,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 12:24:09,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 12:24:09,224 INFO L87 Difference]: Start difference. First operand has 17148 states, 17147 states have (on average 4.976205750277017) internal successors, (85327), 17147 states have internal predecessors, (85327), 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) Second operand has 2 states, 2 states have (on average 84.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:09,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:24:09,615 INFO L93 Difference]: Finished difference Result 17148 states and 76913 transitions. [2022-01-18 12:24:09,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 12:24:09,625 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 84.0) internal successors, (168), 2 states have internal predecessors, (168), 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) Word has length 168 [2022-01-18 12:24:09,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:24:09,890 INFO L225 Difference]: With dead ends: 17148 [2022-01-18 12:24:09,891 INFO L226 Difference]: Without dead ends: 17142 [2022-01-18 12:24:09,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 12:24:09,896 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 12:24:09,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 188 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 12:24:09,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17142 states. [2022-01-18 12:24:10,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17142 to 17142. [2022-01-18 12:24:10,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17142 states, 17141 states have (on average 4.486727728837291) internal successors, (76907), 17141 states have internal predecessors, (76907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:10,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17142 states to 17142 states and 76907 transitions. [2022-01-18 12:24:10,830 INFO L78 Accepts]: Start accepts. Automaton has 17142 states and 76907 transitions. Word has length 168 [2022-01-18 12:24:10,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:24:10,831 INFO L470 AbstractCegarLoop]: Abstraction has 17142 states and 76907 transitions. [2022-01-18 12:24:10,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 84.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:10,831 INFO L276 IsEmpty]: Start isEmpty. Operand 17142 states and 76907 transitions. [2022-01-18 12:24:11,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-01-18 12:24:11,110 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:24:11,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:24:11,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 12:24:11,111 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:24:11,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:24:11,114 INFO L85 PathProgramCache]: Analyzing trace with hash -858370885, now seen corresponding path program 1 times [2022-01-18 12:24:11,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:24:11,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306871926] [2022-01-18 12:24:11,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:24:11,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:24:11,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:24:11,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:24:11,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:24:11,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306871926] [2022-01-18 12:24:11,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306871926] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:24:11,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:24:11,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:24:11,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517290708] [2022-01-18 12:24:11,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:24:11,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:24:11,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:24:11,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:24:11,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:24:11,504 INFO L87 Difference]: Start difference. First operand 17142 states and 76907 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:12,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:24:12,125 INFO L93 Difference]: Finished difference Result 28991 states and 130864 transitions. [2022-01-18 12:24:12,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 12:24:12,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 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) Word has length 168 [2022-01-18 12:24:12,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:24:12,467 INFO L225 Difference]: With dead ends: 28991 [2022-01-18 12:24:12,467 INFO L226 Difference]: Without dead ends: 26429 [2022-01-18 12:24:12,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-18 12:24:12,469 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 28 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:24:12,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 578 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:24:12,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26429 states. [2022-01-18 12:24:13,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26429 to 22929. [2022-01-18 12:24:13,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22929 states, 22928 states have (on average 4.487002791346825) internal successors, (102878), 22928 states have internal predecessors, (102878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:13,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22929 states to 22929 states and 102878 transitions. [2022-01-18 12:24:13,734 INFO L78 Accepts]: Start accepts. Automaton has 22929 states and 102878 transitions. Word has length 168 [2022-01-18 12:24:13,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:24:13,738 INFO L470 AbstractCegarLoop]: Abstraction has 22929 states and 102878 transitions. [2022-01-18 12:24:13,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:13,738 INFO L276 IsEmpty]: Start isEmpty. Operand 22929 states and 102878 transitions. [2022-01-18 12:24:13,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-01-18 12:24:13,818 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:24:13,818 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:24:13,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 12:24:13,818 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:24:13,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:24:13,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1749817996, now seen corresponding path program 1 times [2022-01-18 12:24:13,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:24:13,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93012540] [2022-01-18 12:24:13,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:24:13,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:24:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:24:13,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:24:13,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:24:13,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93012540] [2022-01-18 12:24:13,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93012540] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:24:13,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:24:13,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 12:24:13,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333672393] [2022-01-18 12:24:13,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:24:13,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 12:24:13,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:24:13,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 12:24:13,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 12:24:13,963 INFO L87 Difference]: Start difference. First operand 22929 states and 102878 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:14,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:24:14,435 INFO L93 Difference]: Finished difference Result 33991 states and 150867 transitions. [2022-01-18 12:24:14,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 12:24:14,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) Word has length 171 [2022-01-18 12:24:14,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:24:14,621 INFO L225 Difference]: With dead ends: 33991 [2022-01-18 12:24:14,621 INFO L226 Difference]: Without dead ends: 32248 [2022-01-18 12:24:14,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 12:24:14,623 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 37 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 12:24:14,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 275 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 12:24:14,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32248 states. [2022-01-18 12:24:15,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32248 to 27007. [2022-01-18 12:24:15,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27007 states, 27006 states have (on average 4.477301340442865) internal successors, (120914), 27006 states have internal predecessors, (120914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:15,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27007 states to 27007 states and 120914 transitions. [2022-01-18 12:24:15,824 INFO L78 Accepts]: Start accepts. Automaton has 27007 states and 120914 transitions. Word has length 171 [2022-01-18 12:24:15,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:24:15,825 INFO L470 AbstractCegarLoop]: Abstraction has 27007 states and 120914 transitions. [2022-01-18 12:24:15,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:15,825 INFO L276 IsEmpty]: Start isEmpty. Operand 27007 states and 120914 transitions. [2022-01-18 12:24:15,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-01-18 12:24:15,914 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:24:15,914 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:24:15,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 12:24:15,914 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:24:15,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:24:15,915 INFO L85 PathProgramCache]: Analyzing trace with hash 357358932, now seen corresponding path program 1 times [2022-01-18 12:24:15,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:24:15,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560338114] [2022-01-18 12:24:15,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:24:15,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:24:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:24:15,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:24:15,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:24:15,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560338114] [2022-01-18 12:24:15,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560338114] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:24:15,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:24:15,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 12:24:15,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013437654] [2022-01-18 12:24:15,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:24:15,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 12:24:15,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:24:15,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 12:24:15,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 12:24:15,979 INFO L87 Difference]: Start difference. First operand 27007 states and 120914 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:16,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:24:16,569 INFO L93 Difference]: Finished difference Result 39699 states and 175257 transitions. [2022-01-18 12:24:16,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 12:24:16,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) Word has length 171 [2022-01-18 12:24:16,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:24:16,744 INFO L225 Difference]: With dead ends: 39699 [2022-01-18 12:24:16,745 INFO L226 Difference]: Without dead ends: 37344 [2022-01-18 12:24:16,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 12:24:16,754 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 49 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:24:16,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 282 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:24:16,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37344 states. [2022-01-18 12:24:17,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37344 to 32994. [2022-01-18 12:24:17,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32994 states, 32993 states have (on average 4.431424847694966) internal successors, (146206), 32993 states have internal predecessors, (146206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:17,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32994 states to 32994 states and 146206 transitions. [2022-01-18 12:24:17,819 INFO L78 Accepts]: Start accepts. Automaton has 32994 states and 146206 transitions. Word has length 171 [2022-01-18 12:24:17,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:24:17,819 INFO L470 AbstractCegarLoop]: Abstraction has 32994 states and 146206 transitions. [2022-01-18 12:24:17,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:17,819 INFO L276 IsEmpty]: Start isEmpty. Operand 32994 states and 146206 transitions. [2022-01-18 12:24:18,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-01-18 12:24:18,235 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:24:18,235 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:24:18,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 12:24:18,236 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:24:18,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:24:18,237 INFO L85 PathProgramCache]: Analyzing trace with hash 2130367443, now seen corresponding path program 1 times [2022-01-18 12:24:18,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:24:18,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762668762] [2022-01-18 12:24:18,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:24:18,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:24:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:24:18,354 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:24:18,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:24:18,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762668762] [2022-01-18 12:24:18,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762668762] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:24:18,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:24:18,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 12:24:18,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981457023] [2022-01-18 12:24:18,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:24:18,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 12:24:18,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:24:18,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 12:24:18,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:24:18,356 INFO L87 Difference]: Start difference. First operand 32994 states and 146206 transitions. Second operand has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:18,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:24:18,810 INFO L93 Difference]: Finished difference Result 46746 states and 202605 transitions. [2022-01-18 12:24:18,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 12:24:18,810 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 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) Word has length 175 [2022-01-18 12:24:18,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:24:18,984 INFO L225 Difference]: With dead ends: 46746 [2022-01-18 12:24:18,984 INFO L226 Difference]: Without dead ends: 42569 [2022-01-18 12:24:18,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-01-18 12:24:18,985 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 446 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:24:18,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [446 Valid, 637 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:24:19,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42569 states. [2022-01-18 12:24:20,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42569 to 36810. [2022-01-18 12:24:20,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36810 states, 36809 states have (on average 4.412208970632182) internal successors, (162409), 36809 states have internal predecessors, (162409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:20,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36810 states to 36810 states and 162409 transitions. [2022-01-18 12:24:20,757 INFO L78 Accepts]: Start accepts. Automaton has 36810 states and 162409 transitions. Word has length 175 [2022-01-18 12:24:20,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:24:20,758 INFO L470 AbstractCegarLoop]: Abstraction has 36810 states and 162409 transitions. [2022-01-18 12:24:20,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:20,758 INFO L276 IsEmpty]: Start isEmpty. Operand 36810 states and 162409 transitions. [2022-01-18 12:24:20,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-01-18 12:24:20,852 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:24:20,852 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:24:20,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 12:24:20,853 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:24:20,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:24:20,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1436166671, now seen corresponding path program 1 times [2022-01-18 12:24:20,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:24:20,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478007197] [2022-01-18 12:24:20,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:24:20,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:24:20,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:24:20,925 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:24:20,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:24:20,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478007197] [2022-01-18 12:24:20,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478007197] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:24:20,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:24:20,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 12:24:20,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342579579] [2022-01-18 12:24:20,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:24:20,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 12:24:20,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:24:20,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 12:24:20,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:24:20,927 INFO L87 Difference]: Start difference. First operand 36810 states and 162409 transitions. Second operand has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:21,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:24:21,394 INFO L93 Difference]: Finished difference Result 50446 states and 217962 transitions. [2022-01-18 12:24:21,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 12:24:21,395 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 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) Word has length 175 [2022-01-18 12:24:21,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:24:21,577 INFO L225 Difference]: With dead ends: 50446 [2022-01-18 12:24:21,577 INFO L226 Difference]: Without dead ends: 46323 [2022-01-18 12:24:21,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-01-18 12:24:21,578 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 173 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:24:21,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 631 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:24:22,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46323 states. [2022-01-18 12:24:23,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46323 to 40192. [2022-01-18 12:24:23,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40192 states, 40191 states have (on average 4.399865641561544) internal successors, (176835), 40191 states have internal predecessors, (176835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:23,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40192 states to 40192 states and 176835 transitions. [2022-01-18 12:24:23,256 INFO L78 Accepts]: Start accepts. Automaton has 40192 states and 176835 transitions. Word has length 175 [2022-01-18 12:24:23,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:24:23,256 INFO L470 AbstractCegarLoop]: Abstraction has 40192 states and 176835 transitions. [2022-01-18 12:24:23,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:23,256 INFO L276 IsEmpty]: Start isEmpty. Operand 40192 states and 176835 transitions. [2022-01-18 12:24:23,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-18 12:24:23,368 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:24:23,368 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:24:23,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 12:24:23,368 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:24:23,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:24:23,369 INFO L85 PathProgramCache]: Analyzing trace with hash -500393833, now seen corresponding path program 1 times [2022-01-18 12:24:23,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:24:23,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290636535] [2022-01-18 12:24:23,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:24:23,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:24:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:24:23,601 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:24:23,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:24:23,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290636535] [2022-01-18 12:24:23,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290636535] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:24:23,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:24:23,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 12:24:23,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458682555] [2022-01-18 12:24:23,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:24:23,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 12:24:23,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:24:23,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 12:24:23,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-01-18 12:24:23,602 INFO L87 Difference]: Start difference. First operand 40192 states and 176835 transitions. Second operand has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:24,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:24:24,613 INFO L93 Difference]: Finished difference Result 52975 states and 231276 transitions. [2022-01-18 12:24:24,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 12:24:24,614 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 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) Word has length 182 [2022-01-18 12:24:24,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:24:24,877 INFO L225 Difference]: With dead ends: 52975 [2022-01-18 12:24:24,877 INFO L226 Difference]: Without dead ends: 52291 [2022-01-18 12:24:24,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-01-18 12:24:24,878 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 361 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:24:24,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 965 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:24:24,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52291 states. [2022-01-18 12:24:26,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52291 to 40084. [2022-01-18 12:24:26,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40084 states, 40083 states have (on average 4.39907192575406) internal successors, (176328), 40083 states have internal predecessors, (176328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:26,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40084 states to 40084 states and 176328 transitions. [2022-01-18 12:24:26,342 INFO L78 Accepts]: Start accepts. Automaton has 40084 states and 176328 transitions. Word has length 182 [2022-01-18 12:24:26,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:24:26,342 INFO L470 AbstractCegarLoop]: Abstraction has 40084 states and 176328 transitions. [2022-01-18 12:24:26,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:26,342 INFO L276 IsEmpty]: Start isEmpty. Operand 40084 states and 176328 transitions. [2022-01-18 12:24:26,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-18 12:24:26,434 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:24:26,434 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:24:26,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 12:24:26,435 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:24:26,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:24:26,435 INFO L85 PathProgramCache]: Analyzing trace with hash 170108027, now seen corresponding path program 2 times [2022-01-18 12:24:26,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:24:26,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340777655] [2022-01-18 12:24:26,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:24:26,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:24:26,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:24:26,786 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:24:26,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:24:26,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340777655] [2022-01-18 12:24:26,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340777655] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:24:26,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590206949] [2022-01-18 12:24:26,786 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 12:24:26,787 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:24:26,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:24:26,788 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 12:24:26,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 12:24:26,931 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 12:24:26,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:24:26,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-18 12:24:26,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:24:27,791 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:24:27,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:24:28,259 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:24:28,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590206949] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 12:24:28,259 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 12:24:28,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9, 7] total 18 [2022-01-18 12:24:28,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647042559] [2022-01-18 12:24:28,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:24:28,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 12:24:28,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:24:28,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 12:24:28,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-01-18 12:24:28,261 INFO L87 Difference]: Start difference. First operand 40084 states and 176328 transitions. Second operand has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:29,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:24:29,270 INFO L93 Difference]: Finished difference Result 69793 states and 299194 transitions. [2022-01-18 12:24:29,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 12:24:29,273 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 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) Word has length 182 [2022-01-18 12:24:29,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:24:29,549 INFO L225 Difference]: With dead ends: 69793 [2022-01-18 12:24:29,549 INFO L226 Difference]: Without dead ends: 68325 [2022-01-18 12:24:29,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 355 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2022-01-18 12:24:29,550 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 753 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:24:29,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [753 Valid, 822 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:24:29,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68325 states. [2022-01-18 12:24:30,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68325 to 42700. [2022-01-18 12:24:30,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42700 states, 42699 states have (on average 4.429447996440198) internal successors, (189133), 42699 states have internal predecessors, (189133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:31,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42700 states to 42700 states and 189133 transitions. [2022-01-18 12:24:31,501 INFO L78 Accepts]: Start accepts. Automaton has 42700 states and 189133 transitions. Word has length 182 [2022-01-18 12:24:31,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:24:31,502 INFO L470 AbstractCegarLoop]: Abstraction has 42700 states and 189133 transitions. [2022-01-18 12:24:31,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:31,502 INFO L276 IsEmpty]: Start isEmpty. Operand 42700 states and 189133 transitions. [2022-01-18 12:24:31,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-18 12:24:31,666 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:24:31,666 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:24:31,685 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-18 12:24:31,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:24:31,875 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:24:31,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:24:31,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1433378109, now seen corresponding path program 3 times [2022-01-18 12:24:31,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:24:31,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559968777] [2022-01-18 12:24:31,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:24:31,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:24:31,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:24:32,164 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:24:32,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:24:32,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559968777] [2022-01-18 12:24:32,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559968777] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:24:32,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:24:32,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 12:24:32,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497373565] [2022-01-18 12:24:32,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:24:32,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 12:24:32,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:24:32,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 12:24:32,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-18 12:24:32,166 INFO L87 Difference]: Start difference. First operand 42700 states and 189133 transitions. Second operand has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:32,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:24:32,991 INFO L93 Difference]: Finished difference Result 64766 states and 281274 transitions. [2022-01-18 12:24:32,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 12:24:32,991 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 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) Word has length 182 [2022-01-18 12:24:32,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:24:33,256 INFO L225 Difference]: With dead ends: 64766 [2022-01-18 12:24:33,256 INFO L226 Difference]: Without dead ends: 63983 [2022-01-18 12:24:33,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-18 12:24:33,257 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 545 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 1239 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 12:24:33,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [545 Valid, 1239 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 12:24:33,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63983 states. [2022-01-18 12:24:34,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63983 to 42636. [2022-01-18 12:24:34,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42636 states, 42635 states have (on average 4.427559516828897) internal successors, (188769), 42635 states have internal predecessors, (188769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:35,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42636 states to 42636 states and 188769 transitions. [2022-01-18 12:24:35,381 INFO L78 Accepts]: Start accepts. Automaton has 42636 states and 188769 transitions. Word has length 182 [2022-01-18 12:24:35,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:24:35,381 INFO L470 AbstractCegarLoop]: Abstraction has 42636 states and 188769 transitions. [2022-01-18 12:24:35,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:35,381 INFO L276 IsEmpty]: Start isEmpty. Operand 42636 states and 188769 transitions. [2022-01-18 12:24:35,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-18 12:24:35,482 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:24:35,482 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:24:35,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 12:24:35,482 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:24:35,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:24:35,482 INFO L85 PathProgramCache]: Analyzing trace with hash -560270877, now seen corresponding path program 4 times [2022-01-18 12:24:35,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:24:35,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206897606] [2022-01-18 12:24:35,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:24:35,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:24:35,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:24:35,702 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:24:35,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:24:35,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206897606] [2022-01-18 12:24:35,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206897606] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:24:35,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229663934] [2022-01-18 12:24:35,703 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 12:24:35,703 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:24:35,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:24:35,704 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 12:24:35,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 12:24:35,841 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 12:24:35,841 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:24:35,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 12 conjunts are in the unsatisfiable core [2022-01-18 12:24:35,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:24:36,496 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:24:36,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:24:36,933 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:24:36,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229663934] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:24:36,934 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:24:36,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 9] total 19 [2022-01-18 12:24:36,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670543169] [2022-01-18 12:24:36,934 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:24:36,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 12:24:36,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:24:36,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 12:24:36,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2022-01-18 12:24:36,935 INFO L87 Difference]: Start difference. First operand 42636 states and 188769 transitions. Second operand has 19 states, 19 states have (on average 23.0) internal successors, (437), 19 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:39,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:24:39,561 INFO L93 Difference]: Finished difference Result 101973 states and 438289 transitions. [2022-01-18 12:24:39,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 12:24:39,561 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 23.0) internal successors, (437), 19 states have internal predecessors, (437), 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) Word has length 182 [2022-01-18 12:24:39,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:24:39,992 INFO L225 Difference]: With dead ends: 101973 [2022-01-18 12:24:39,992 INFO L226 Difference]: Without dead ends: 97549 [2022-01-18 12:24:39,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 354 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 842 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=729, Invalid=2351, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 12:24:39,994 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 2895 mSDsluCounter, 2523 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2895 SdHoareTripleChecker+Valid, 2532 SdHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 12:24:39,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2895 Valid, 2532 Invalid, 936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 12:24:40,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97549 states. [2022-01-18 12:24:42,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97549 to 40384. [2022-01-18 12:24:42,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40384 states, 40383 states have (on average 4.406606740460094) internal successors, (177952), 40383 states have internal predecessors, (177952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:42,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40384 states to 40384 states and 177952 transitions. [2022-01-18 12:24:42,476 INFO L78 Accepts]: Start accepts. Automaton has 40384 states and 177952 transitions. Word has length 182 [2022-01-18 12:24:42,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:24:42,477 INFO L470 AbstractCegarLoop]: Abstraction has 40384 states and 177952 transitions. [2022-01-18 12:24:42,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 23.0) internal successors, (437), 19 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:42,477 INFO L276 IsEmpty]: Start isEmpty. Operand 40384 states and 177952 transitions. [2022-01-18 12:24:42,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-18 12:24:42,569 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:24:42,569 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:24:42,585 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-01-18 12:24:42,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-01-18 12:24:42,770 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:24:42,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:24:42,771 INFO L85 PathProgramCache]: Analyzing trace with hash 975414789, now seen corresponding path program 5 times [2022-01-18 12:24:42,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:24:42,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523181952] [2022-01-18 12:24:42,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:24:42,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:24:42,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:24:42,953 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:24:42,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:24:42,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523181952] [2022-01-18 12:24:42,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523181952] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:24:42,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634360307] [2022-01-18 12:24:42,954 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 12:24:42,954 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:24:42,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:24:42,955 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 12:24:42,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-18 12:24:43,094 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 12:24:43,094 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:24:43,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 12 conjunts are in the unsatisfiable core [2022-01-18 12:24:43,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:24:43,893 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:24:43,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:24:44,355 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:24:44,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634360307] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 12:24:44,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 12:24:44,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 7] total 19 [2022-01-18 12:24:44,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597436467] [2022-01-18 12:24:44,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:24:44,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 12:24:44,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:24:44,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 12:24:44,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2022-01-18 12:24:44,357 INFO L87 Difference]: Start difference. First operand 40384 states and 177952 transitions. Second operand has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:45,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:24:45,793 INFO L93 Difference]: Finished difference Result 83373 states and 355734 transitions. [2022-01-18 12:24:45,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 12:24:45,793 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 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) Word has length 182 [2022-01-18 12:24:45,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:24:46,147 INFO L225 Difference]: With dead ends: 83373 [2022-01-18 12:24:46,148 INFO L226 Difference]: Without dead ends: 82101 [2022-01-18 12:24:46,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=281, Invalid=1279, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 12:24:46,149 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 1606 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1606 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 12:24:46,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1606 Valid, 1024 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 12:24:46,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82101 states. [2022-01-18 12:24:47,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82101 to 38182. [2022-01-18 12:24:47,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38182 states, 38181 states have (on average 4.376155679526466) internal successors, (167086), 38181 states have internal predecessors, (167086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:47,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38182 states to 38182 states and 167086 transitions. [2022-01-18 12:24:47,759 INFO L78 Accepts]: Start accepts. Automaton has 38182 states and 167086 transitions. Word has length 182 [2022-01-18 12:24:47,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:24:47,759 INFO L470 AbstractCegarLoop]: Abstraction has 38182 states and 167086 transitions. [2022-01-18 12:24:47,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:47,759 INFO L276 IsEmpty]: Start isEmpty. Operand 38182 states and 167086 transitions. [2022-01-18 12:24:47,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-18 12:24:47,847 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:24:47,847 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:24:47,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-18 12:24:48,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:24:48,052 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:24:48,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:24:48,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1759381019, now seen corresponding path program 6 times [2022-01-18 12:24:48,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:24:48,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855030226] [2022-01-18 12:24:48,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:24:48,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:24:48,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:24:48,317 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:24:48,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:24:48,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855030226] [2022-01-18 12:24:48,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855030226] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:24:48,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:24:48,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 12:24:48,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750666347] [2022-01-18 12:24:48,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:24:48,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 12:24:48,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:24:48,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 12:24:48,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-18 12:24:48,319 INFO L87 Difference]: Start difference. First operand 38182 states and 167086 transitions. Second operand has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:49,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:24:49,511 INFO L93 Difference]: Finished difference Result 52741 states and 228968 transitions. [2022-01-18 12:24:49,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 12:24:49,512 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 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) Word has length 182 [2022-01-18 12:24:49,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:24:49,719 INFO L225 Difference]: With dead ends: 52741 [2022-01-18 12:24:49,719 INFO L226 Difference]: Without dead ends: 51561 [2022-01-18 12:24:49,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-01-18 12:24:49,719 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 438 mSDsluCounter, 1610 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 1691 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 12:24:49,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 1691 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 12:24:49,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51561 states. [2022-01-18 12:24:50,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51561 to 34999. [2022-01-18 12:24:50,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34999 states, 34998 states have (on average 4.412394993999657) internal successors, (154425), 34998 states have internal predecessors, (154425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:50,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34999 states to 34999 states and 154425 transitions. [2022-01-18 12:24:50,981 INFO L78 Accepts]: Start accepts. Automaton has 34999 states and 154425 transitions. Word has length 182 [2022-01-18 12:24:50,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:24:50,981 INFO L470 AbstractCegarLoop]: Abstraction has 34999 states and 154425 transitions. [2022-01-18 12:24:50,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:50,981 INFO L276 IsEmpty]: Start isEmpty. Operand 34999 states and 154425 transitions. [2022-01-18 12:24:51,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-18 12:24:51,061 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:24:51,061 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:24:51,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 12:24:51,061 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:24:51,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:24:51,061 INFO L85 PathProgramCache]: Analyzing trace with hash 78103719, now seen corresponding path program 1 times [2022-01-18 12:24:51,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:24:51,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673439655] [2022-01-18 12:24:51,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:24:51,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:24:51,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:24:51,214 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:24:51,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:24:51,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673439655] [2022-01-18 12:24:51,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673439655] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:24:51,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981655285] [2022-01-18 12:24:51,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:24:51,215 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:24:51,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:24:51,216 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 12:24:51,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-18 12:24:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:24:51,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 15 conjunts are in the unsatisfiable core [2022-01-18 12:24:51,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:24:51,984 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:24:51,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:24:52,563 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:24:52,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981655285] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:24:52,564 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:24:52,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 11] total 21 [2022-01-18 12:24:52,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43741852] [2022-01-18 12:24:52,567 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:24:52,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-18 12:24:52,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:24:52,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-18 12:24:52,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2022-01-18 12:24:52,568 INFO L87 Difference]: Start difference. First operand 34999 states and 154425 transitions. Second operand has 21 states, 21 states have (on average 21.285714285714285) internal successors, (447), 21 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:55,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:24:55,357 INFO L93 Difference]: Finished difference Result 110711 states and 476084 transitions. [2022-01-18 12:24:55,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-01-18 12:24:55,358 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 21.285714285714285) internal successors, (447), 21 states have internal predecessors, (447), 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) Word has length 182 [2022-01-18 12:24:55,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:24:56,348 INFO L225 Difference]: With dead ends: 110711 [2022-01-18 12:24:56,349 INFO L226 Difference]: Without dead ends: 104907 [2022-01-18 12:24:56,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1739 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1101, Invalid=4599, Unknown=0, NotChecked=0, Total=5700 [2022-01-18 12:24:56,350 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 2371 mSDsluCounter, 4048 mSDsCounter, 0 mSdLazyCounter, 1363 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2371 SdHoareTripleChecker+Valid, 3859 SdHoareTripleChecker+Invalid, 1514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 1363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 12:24:56,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2371 Valid, 3859 Invalid, 1514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 1363 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 12:24:56,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104907 states. [2022-01-18 12:24:58,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104907 to 40322. [2022-01-18 12:24:58,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40322 states, 40321 states have (on average 4.455544257334887) internal successors, (179652), 40321 states have internal predecessors, (179652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:58,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40322 states to 40322 states and 179652 transitions. [2022-01-18 12:24:58,242 INFO L78 Accepts]: Start accepts. Automaton has 40322 states and 179652 transitions. Word has length 182 [2022-01-18 12:24:58,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:24:58,243 INFO L470 AbstractCegarLoop]: Abstraction has 40322 states and 179652 transitions. [2022-01-18 12:24:58,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 21.285714285714285) internal successors, (447), 21 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:24:58,243 INFO L276 IsEmpty]: Start isEmpty. Operand 40322 states and 179652 transitions. [2022-01-18 12:24:58,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-18 12:24:58,334 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:24:58,335 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:24:58,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-18 12:24:58,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:24:58,536 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:24:58,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:24:58,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1986036391, now seen corresponding path program 2 times [2022-01-18 12:24:58,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:24:58,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948007388] [2022-01-18 12:24:58,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:24:58,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:24:58,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:24:58,832 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:24:58,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:24:58,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948007388] [2022-01-18 12:24:58,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948007388] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:24:58,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:24:58,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 12:24:58,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111593125] [2022-01-18 12:24:58,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:24:58,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 12:24:58,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:24:58,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 12:24:58,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-18 12:24:58,834 INFO L87 Difference]: Start difference. First operand 40322 states and 179652 transitions. Second operand has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:00,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:25:00,054 INFO L93 Difference]: Finished difference Result 53022 states and 236842 transitions. [2022-01-18 12:25:00,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 12:25:00,054 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 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) Word has length 182 [2022-01-18 12:25:00,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:25:00,310 INFO L225 Difference]: With dead ends: 53022 [2022-01-18 12:25:00,311 INFO L226 Difference]: Without dead ends: 52074 [2022-01-18 12:25:00,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-18 12:25:00,311 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 388 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 12:25:00,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [388 Valid, 926 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 12:25:00,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52074 states. [2022-01-18 12:25:01,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52074 to 40794. [2022-01-18 12:25:01,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40794 states, 40793 states have (on average 4.456230235579634) internal successors, (181783), 40793 states have internal predecessors, (181783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:01,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40794 states to 40794 states and 181783 transitions. [2022-01-18 12:25:01,880 INFO L78 Accepts]: Start accepts. Automaton has 40794 states and 181783 transitions. Word has length 182 [2022-01-18 12:25:01,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:25:01,881 INFO L470 AbstractCegarLoop]: Abstraction has 40794 states and 181783 transitions. [2022-01-18 12:25:01,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:01,881 INFO L276 IsEmpty]: Start isEmpty. Operand 40794 states and 181783 transitions. [2022-01-18 12:25:01,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-18 12:25:01,977 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:25:01,977 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:25:01,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 12:25:01,977 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:25:01,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:25:01,977 INFO L85 PathProgramCache]: Analyzing trace with hash -970708935, now seen corresponding path program 3 times [2022-01-18 12:25:01,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:25:01,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741324528] [2022-01-18 12:25:01,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:25:01,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:25:02,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:25:02,241 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:25:02,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:25:02,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741324528] [2022-01-18 12:25:02,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741324528] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:25:02,241 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:25:02,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 12:25:02,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223966877] [2022-01-18 12:25:02,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:25:02,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 12:25:02,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:25:02,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 12:25:02,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-01-18 12:25:02,242 INFO L87 Difference]: Start difference. First operand 40794 states and 181783 transitions. Second operand has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:03,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:25:03,752 INFO L93 Difference]: Finished difference Result 69124 states and 303967 transitions. [2022-01-18 12:25:03,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 12:25:03,752 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 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) Word has length 182 [2022-01-18 12:25:03,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:25:04,159 INFO L225 Difference]: With dead ends: 69124 [2022-01-18 12:25:04,159 INFO L226 Difference]: Without dead ends: 65496 [2022-01-18 12:25:04,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2022-01-18 12:25:04,162 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 774 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 12:25:04,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [774 Valid, 1172 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 12:25:04,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65496 states. [2022-01-18 12:25:05,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65496 to 40788. [2022-01-18 12:25:05,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40788 states, 40787 states have (on average 4.4579155122955845) internal successors, (181825), 40787 states have internal predecessors, (181825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:05,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40788 states to 40788 states and 181825 transitions. [2022-01-18 12:25:05,752 INFO L78 Accepts]: Start accepts. Automaton has 40788 states and 181825 transitions. Word has length 182 [2022-01-18 12:25:05,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:25:05,752 INFO L470 AbstractCegarLoop]: Abstraction has 40788 states and 181825 transitions. [2022-01-18 12:25:05,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:05,753 INFO L276 IsEmpty]: Start isEmpty. Operand 40788 states and 181825 transitions. [2022-01-18 12:25:05,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-18 12:25:05,846 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:25:05,846 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:25:05,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 12:25:05,846 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:25:05,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:25:05,847 INFO L85 PathProgramCache]: Analyzing trace with hash 131499233, now seen corresponding path program 4 times [2022-01-18 12:25:05,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:25:05,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123421394] [2022-01-18 12:25:05,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:25:05,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:25:05,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:25:06,026 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:25:06,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:25:06,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123421394] [2022-01-18 12:25:06,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123421394] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:25:06,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:25:06,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 12:25:06,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714405942] [2022-01-18 12:25:06,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:25:06,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 12:25:06,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:25:06,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 12:25:06,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-18 12:25:06,028 INFO L87 Difference]: Start difference. First operand 40788 states and 181825 transitions. Second operand has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:06,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:25:06,782 INFO L93 Difference]: Finished difference Result 54840 states and 245628 transitions. [2022-01-18 12:25:06,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 12:25:06,782 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 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) Word has length 182 [2022-01-18 12:25:06,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:25:07,538 INFO L225 Difference]: With dead ends: 54840 [2022-01-18 12:25:07,538 INFO L226 Difference]: Without dead ends: 54840 [2022-01-18 12:25:07,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2022-01-18 12:25:07,540 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 343 mSDsluCounter, 877 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 12:25:07,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 1007 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 12:25:07,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54840 states. [2022-01-18 12:25:08,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54840 to 41884. [2022-01-18 12:25:08,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41884 states, 41883 states have (on average 4.465749826898742) internal successors, (187039), 41883 states have internal predecessors, (187039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:09,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41884 states to 41884 states and 187039 transitions. [2022-01-18 12:25:09,129 INFO L78 Accepts]: Start accepts. Automaton has 41884 states and 187039 transitions. Word has length 182 [2022-01-18 12:25:09,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:25:09,130 INFO L470 AbstractCegarLoop]: Abstraction has 41884 states and 187039 transitions. [2022-01-18 12:25:09,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:09,130 INFO L276 IsEmpty]: Start isEmpty. Operand 41884 states and 187039 transitions. [2022-01-18 12:25:09,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-18 12:25:09,247 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:25:09,247 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:25:09,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-18 12:25:09,247 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:25:09,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:25:09,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1393241023, now seen corresponding path program 5 times [2022-01-18 12:25:09,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:25:09,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134184167] [2022-01-18 12:25:09,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:25:09,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:25:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:25:09,517 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:25:09,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:25:09,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134184167] [2022-01-18 12:25:09,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134184167] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:25:09,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:25:09,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 12:25:09,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961014261] [2022-01-18 12:25:09,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:25:09,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 12:25:09,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:25:09,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 12:25:09,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-01-18 12:25:09,519 INFO L87 Difference]: Start difference. First operand 41884 states and 187039 transitions. Second operand has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:10,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:25:10,237 INFO L93 Difference]: Finished difference Result 56596 states and 251337 transitions. [2022-01-18 12:25:10,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 12:25:10,238 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 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) Word has length 182 [2022-01-18 12:25:10,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:25:10,448 INFO L225 Difference]: With dead ends: 56596 [2022-01-18 12:25:10,448 INFO L226 Difference]: Without dead ends: 54471 [2022-01-18 12:25:10,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2022-01-18 12:25:10,449 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 789 mSDsluCounter, 1141 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 12:25:10,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [789 Valid, 1273 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 12:25:10,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54471 states. [2022-01-18 12:25:11,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54471 to 35421. [2022-01-18 12:25:11,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35421 states, 35420 states have (on average 4.491360813099943) internal successors, (159084), 35420 states have internal predecessors, (159084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:11,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35421 states to 35421 states and 159084 transitions. [2022-01-18 12:25:11,862 INFO L78 Accepts]: Start accepts. Automaton has 35421 states and 159084 transitions. Word has length 182 [2022-01-18 12:25:11,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:25:11,862 INFO L470 AbstractCegarLoop]: Abstraction has 35421 states and 159084 transitions. [2022-01-18 12:25:11,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:11,863 INFO L276 IsEmpty]: Start isEmpty. Operand 35421 states and 159084 transitions. [2022-01-18 12:25:11,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-18 12:25:11,948 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:25:11,949 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:25:11,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 12:25:11,950 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:25:11,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:25:11,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1075888186, now seen corresponding path program 1 times [2022-01-18 12:25:11,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:25:11,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097421201] [2022-01-18 12:25:11,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:25:11,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:25:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:25:12,080 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 12:25:12,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:25:12,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097421201] [2022-01-18 12:25:12,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097421201] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:25:12,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370427523] [2022-01-18 12:25:12,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:25:12,081 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:25:12,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:25:12,082 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 12:25:12,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-18 12:25:12,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:25:12,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-18 12:25:12,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:25:12,942 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 12:25:12,942 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 12:25:12,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370427523] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:25:12,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 12:25:12,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2022-01-18 12:25:12,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37883430] [2022-01-18 12:25:12,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:25:12,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 12:25:12,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:25:12,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 12:25:12,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-01-18 12:25:12,945 INFO L87 Difference]: Start difference. First operand 35421 states and 159084 transitions. Second operand has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:13,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:25:13,597 INFO L93 Difference]: Finished difference Result 81776 states and 372305 transitions. [2022-01-18 12:25:13,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 12:25:13,597 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-01-18 12:25:13,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:25:13,976 INFO L225 Difference]: With dead ends: 81776 [2022-01-18 12:25:13,976 INFO L226 Difference]: Without dead ends: 81776 [2022-01-18 12:25:13,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-01-18 12:25:13,976 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 220 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:25:13,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 875 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:25:14,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81776 states. [2022-01-18 12:25:16,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81776 to 49094. [2022-01-18 12:25:16,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49094 states, 49093 states have (on average 4.54009736622329) internal successors, (222887), 49093 states have internal predecessors, (222887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:16,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49094 states to 49094 states and 222887 transitions. [2022-01-18 12:25:16,341 INFO L78 Accepts]: Start accepts. Automaton has 49094 states and 222887 transitions. Word has length 193 [2022-01-18 12:25:16,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:25:16,341 INFO L470 AbstractCegarLoop]: Abstraction has 49094 states and 222887 transitions. [2022-01-18 12:25:16,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:16,341 INFO L276 IsEmpty]: Start isEmpty. Operand 49094 states and 222887 transitions. [2022-01-18 12:25:16,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-18 12:25:16,463 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:25:16,464 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:25:16,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-18 12:25:16,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-01-18 12:25:16,668 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:25:16,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:25:16,668 INFO L85 PathProgramCache]: Analyzing trace with hash -316570878, now seen corresponding path program 1 times [2022-01-18 12:25:16,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:25:16,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842826026] [2022-01-18 12:25:16,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:25:16,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:25:16,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:25:16,894 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 12:25:16,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:25:16,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842826026] [2022-01-18 12:25:16,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842826026] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:25:16,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254755279] [2022-01-18 12:25:16,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:25:16,896 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:25:16,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:25:16,911 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 12:25:16,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-18 12:25:17,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:25:17,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-18 12:25:17,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:25:17,406 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 12:25:17,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:25:17,719 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 12:25:17,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254755279] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 12:25:17,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 12:25:17,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6, 6] total 11 [2022-01-18 12:25:17,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223949716] [2022-01-18 12:25:17,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:25:17,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 12:25:17,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:25:17,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 12:25:17,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-01-18 12:25:17,723 INFO L87 Difference]: Start difference. First operand 49094 states and 222887 transitions. Second operand has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:19,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:25:19,051 INFO L93 Difference]: Finished difference Result 90647 states and 408290 transitions. [2022-01-18 12:25:19,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 12:25:19,052 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-01-18 12:25:19,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:25:19,591 INFO L225 Difference]: With dead ends: 90647 [2022-01-18 12:25:19,592 INFO L226 Difference]: Without dead ends: 90647 [2022-01-18 12:25:19,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 379 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2022-01-18 12:25:19,605 INFO L933 BasicCegarLoop]: 289 mSDtfsCounter, 511 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:25:19,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [511 Valid, 940 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:25:19,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90647 states. [2022-01-18 12:25:21,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90647 to 49841. [2022-01-18 12:25:21,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49841 states, 49840 states have (on average 4.5262640449438205) internal successors, (225589), 49840 states have internal predecessors, (225589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:22,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49841 states to 49841 states and 225589 transitions. [2022-01-18 12:25:22,043 INFO L78 Accepts]: Start accepts. Automaton has 49841 states and 225589 transitions. Word has length 193 [2022-01-18 12:25:22,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:25:22,043 INFO L470 AbstractCegarLoop]: Abstraction has 49841 states and 225589 transitions. [2022-01-18 12:25:22,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:22,043 INFO L276 IsEmpty]: Start isEmpty. Operand 49841 states and 225589 transitions. [2022-01-18 12:25:22,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-18 12:25:22,688 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:25:22,688 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:25:22,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-18 12:25:22,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:25:22,904 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:25:22,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:25:22,904 INFO L85 PathProgramCache]: Analyzing trace with hash -42298392, now seen corresponding path program 2 times [2022-01-18 12:25:22,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:25:22,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781580814] [2022-01-18 12:25:22,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:25:22,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:25:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:25:22,978 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 12:25:22,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:25:22,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781580814] [2022-01-18 12:25:22,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781580814] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:25:22,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:25:22,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:25:22,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443797127] [2022-01-18 12:25:22,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:25:22,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:25:22,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:25:22,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:25:22,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:25:22,980 INFO L87 Difference]: Start difference. First operand 49841 states and 225589 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:23,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:25:23,575 INFO L93 Difference]: Finished difference Result 79538 states and 363954 transitions. [2022-01-18 12:25:23,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 12:25:23,575 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-01-18 12:25:23,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:25:23,908 INFO L225 Difference]: With dead ends: 79538 [2022-01-18 12:25:23,908 INFO L226 Difference]: Without dead ends: 79538 [2022-01-18 12:25:23,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-18 12:25:23,908 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 193 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:25:23,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 639 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:25:24,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79538 states. [2022-01-18 12:25:25,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79538 to 39130. [2022-01-18 12:25:25,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39130 states, 39129 states have (on average 4.526029287740551) internal successors, (177099), 39129 states have internal predecessors, (177099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:26,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39130 states to 39130 states and 177099 transitions. [2022-01-18 12:25:26,057 INFO L78 Accepts]: Start accepts. Automaton has 39130 states and 177099 transitions. Word has length 193 [2022-01-18 12:25:26,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:25:26,058 INFO L470 AbstractCegarLoop]: Abstraction has 39130 states and 177099 transitions. [2022-01-18 12:25:26,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:26,058 INFO L276 IsEmpty]: Start isEmpty. Operand 39130 states and 177099 transitions. [2022-01-18 12:25:26,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-18 12:25:26,181 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:25:26,181 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:25:26,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 12:25:26,181 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:25:26,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:25:26,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1900493798, now seen corresponding path program 3 times [2022-01-18 12:25:26,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:25:26,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939083448] [2022-01-18 12:25:26,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:25:26,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:25:26,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:25:26,364 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 12:25:26,364 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:25:26,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939083448] [2022-01-18 12:25:26,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939083448] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:25:26,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961188967] [2022-01-18 12:25:26,364 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 12:25:26,364 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:25:26,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:25:26,366 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 12:25:26,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-18 12:25:26,504 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-18 12:25:26,504 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:25:26,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-18 12:25:26,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:25:26,899 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 12:25:26,900 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 12:25:26,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961188967] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:25:26,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 12:25:26,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-01-18 12:25:26,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268113404] [2022-01-18 12:25:26,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:25:26,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 12:25:26,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:25:26,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 12:25:26,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-01-18 12:25:26,901 INFO L87 Difference]: Start difference. First operand 39130 states and 177099 transitions. Second operand has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:27,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:25:27,593 INFO L93 Difference]: Finished difference Result 56449 states and 256795 transitions. [2022-01-18 12:25:27,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 12:25:27,593 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-01-18 12:25:27,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:25:27,811 INFO L225 Difference]: With dead ends: 56449 [2022-01-18 12:25:27,811 INFO L226 Difference]: Without dead ends: 56449 [2022-01-18 12:25:27,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2022-01-18 12:25:27,812 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 170 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 12:25:27,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 1114 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 12:25:27,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56449 states. [2022-01-18 12:25:29,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56449 to 50980. [2022-01-18 12:25:29,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50980 states, 50979 states have (on average 4.578081170678122) internal successors, (233386), 50979 states have internal predecessors, (233386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:29,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50980 states to 50980 states and 233386 transitions. [2022-01-18 12:25:29,935 INFO L78 Accepts]: Start accepts. Automaton has 50980 states and 233386 transitions. Word has length 193 [2022-01-18 12:25:29,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:25:29,936 INFO L470 AbstractCegarLoop]: Abstraction has 50980 states and 233386 transitions. [2022-01-18 12:25:29,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:29,936 INFO L276 IsEmpty]: Start isEmpty. Operand 50980 states and 233386 transitions. [2022-01-18 12:25:30,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-18 12:25:30,087 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:25:30,087 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:25:30,110 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-01-18 12:25:30,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:25:30,306 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:25:30,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:25:30,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1987458278, now seen corresponding path program 4 times [2022-01-18 12:25:30,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:25:30,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855913477] [2022-01-18 12:25:30,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:25:30,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:25:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:25:30,508 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:25:30,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:25:30,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855913477] [2022-01-18 12:25:30,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855913477] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:25:30,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65354072] [2022-01-18 12:25:30,508 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 12:25:30,509 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:25:30,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:25:30,512 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 12:25:30,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-18 12:25:30,678 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 12:25:30,678 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:25:30,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-18 12:25:30,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:25:31,623 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:25:31,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:25:32,210 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:25:32,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65354072] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:25:32,211 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:25:32,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 12] total 27 [2022-01-18 12:25:32,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506538588] [2022-01-18 12:25:32,211 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:25:32,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-18 12:25:32,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:25:32,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-18 12:25:32,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=563, Unknown=0, NotChecked=0, Total=702 [2022-01-18 12:25:32,212 INFO L87 Difference]: Start difference. First operand 50980 states and 233386 transitions. Second operand has 27 states, 27 states have (on average 19.11111111111111) internal successors, (516), 27 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:40,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:25:40,477 INFO L93 Difference]: Finished difference Result 257648 states and 1147837 transitions. [2022-01-18 12:25:40,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-01-18 12:25:40,477 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 19.11111111111111) internal successors, (516), 27 states have internal predecessors, (516), 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) Word has length 193 [2022-01-18 12:25:40,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:25:43,035 INFO L225 Difference]: With dead ends: 257648 [2022-01-18 12:25:43,035 INFO L226 Difference]: Without dead ends: 257648 [2022-01-18 12:25:43,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6591 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=3459, Invalid=14097, Unknown=0, NotChecked=0, Total=17556 [2022-01-18 12:25:43,041 INFO L933 BasicCegarLoop]: 439 mSDtfsCounter, 3150 mSDsluCounter, 6317 mSDsCounter, 0 mSdLazyCounter, 3014 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3150 SdHoareTripleChecker+Valid, 5946 SdHoareTripleChecker+Invalid, 3338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 3014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-18 12:25:43,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3150 Valid, 5946 Invalid, 3338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 3014 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-18 12:25:43,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257648 states. [2022-01-18 12:25:46,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257648 to 54660. [2022-01-18 12:25:47,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54660 states, 54659 states have (on average 4.599517005433689) internal successors, (251405), 54659 states have internal predecessors, (251405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:47,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54660 states to 54660 states and 251405 transitions. [2022-01-18 12:25:47,220 INFO L78 Accepts]: Start accepts. Automaton has 54660 states and 251405 transitions. Word has length 193 [2022-01-18 12:25:47,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:25:47,220 INFO L470 AbstractCegarLoop]: Abstraction has 54660 states and 251405 transitions. [2022-01-18 12:25:47,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 19.11111111111111) internal successors, (516), 27 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:47,221 INFO L276 IsEmpty]: Start isEmpty. Operand 54660 states and 251405 transitions. [2022-01-18 12:25:47,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-18 12:25:47,359 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:25:47,359 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:25:47,375 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-01-18 12:25:47,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-01-18 12:25:47,560 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:25:47,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:25:47,560 INFO L85 PathProgramCache]: Analyzing trace with hash -856930020, now seen corresponding path program 2 times [2022-01-18 12:25:47,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:25:47,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206407209] [2022-01-18 12:25:47,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:25:47,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:25:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:25:47,688 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 12:25:47,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:25:47,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206407209] [2022-01-18 12:25:47,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206407209] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:25:47,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:25:47,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:25:47,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598101209] [2022-01-18 12:25:47,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:25:47,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:25:47,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:25:47,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:25:47,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:25:47,690 INFO L87 Difference]: Start difference. First operand 54660 states and 251405 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:49,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:25:49,204 INFO L93 Difference]: Finished difference Result 105779 states and 485386 transitions. [2022-01-18 12:25:49,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 12:25:49,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-01-18 12:25:49,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:25:49,734 INFO L225 Difference]: With dead ends: 105779 [2022-01-18 12:25:49,734 INFO L226 Difference]: Without dead ends: 105779 [2022-01-18 12:25:49,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:25:49,734 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 173 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:25:49,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 868 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:25:49,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105779 states. [2022-01-18 12:25:52,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105779 to 56474. [2022-01-18 12:25:52,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56474 states, 56473 states have (on average 4.639456023232341) internal successors, (262004), 56473 states have internal predecessors, (262004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:52,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56474 states to 56474 states and 262004 transitions. [2022-01-18 12:25:52,561 INFO L78 Accepts]: Start accepts. Automaton has 56474 states and 262004 transitions. Word has length 193 [2022-01-18 12:25:52,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:25:52,561 INFO L470 AbstractCegarLoop]: Abstraction has 56474 states and 262004 transitions. [2022-01-18 12:25:52,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:52,561 INFO L276 IsEmpty]: Start isEmpty. Operand 56474 states and 262004 transitions. [2022-01-18 12:25:52,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-18 12:25:52,709 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:25:52,709 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:25:52,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 12:25:52,709 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:25:52,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:25:52,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1019929886, now seen corresponding path program 3 times [2022-01-18 12:25:52,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:25:52,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358807850] [2022-01-18 12:25:52,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:25:52,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:25:52,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:25:52,863 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 12:25:52,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:25:52,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358807850] [2022-01-18 12:25:52,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358807850] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:25:52,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305694219] [2022-01-18 12:25:52,864 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 12:25:52,864 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:25:52,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:25:52,865 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 12:25:52,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-01-18 12:25:53,017 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-18 12:25:53,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:25:53,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-18 12:25:53,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:25:53,531 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 12:25:53,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:25:53,868 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 12:25:53,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305694219] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 12:25:53,868 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 12:25:53,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 17 [2022-01-18 12:25:53,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133689149] [2022-01-18 12:25:53,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:25:53,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 12:25:53,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:25:53,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 12:25:53,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2022-01-18 12:25:53,869 INFO L87 Difference]: Start difference. First operand 56474 states and 262004 transitions. Second operand has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:54,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:25:54,998 INFO L93 Difference]: Finished difference Result 80271 states and 366520 transitions. [2022-01-18 12:25:54,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 12:25:54,998 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-01-18 12:25:54,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:25:55,319 INFO L225 Difference]: With dead ends: 80271 [2022-01-18 12:25:55,319 INFO L226 Difference]: Without dead ends: 80271 [2022-01-18 12:25:55,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=433, Unknown=0, NotChecked=0, Total=552 [2022-01-18 12:25:55,320 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 349 mSDsluCounter, 1100 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 12:25:55,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [349 Valid, 1247 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 12:25:55,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80271 states. [2022-01-18 12:25:56,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80271 to 51976. [2022-01-18 12:25:56,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51976 states, 51975 states have (on average 4.616084656084656) internal successors, (239921), 51975 states have internal predecessors, (239921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:57,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51976 states to 51976 states and 239921 transitions. [2022-01-18 12:25:57,148 INFO L78 Accepts]: Start accepts. Automaton has 51976 states and 239921 transitions. Word has length 193 [2022-01-18 12:25:57,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:25:57,148 INFO L470 AbstractCegarLoop]: Abstraction has 51976 states and 239921 transitions. [2022-01-18 12:25:57,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:25:57,148 INFO L276 IsEmpty]: Start isEmpty. Operand 51976 states and 239921 transitions. [2022-01-18 12:25:57,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-18 12:25:57,788 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:25:57,788 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:25:57,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-01-18 12:25:57,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-01-18 12:25:57,995 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:25:57,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:25:57,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1028989428, now seen corresponding path program 5 times [2022-01-18 12:25:57,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:25:57,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630379785] [2022-01-18 12:25:57,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:25:57,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:25:58,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:25:58,074 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 12:25:58,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:25:58,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630379785] [2022-01-18 12:25:58,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630379785] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:25:58,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048936124] [2022-01-18 12:25:58,075 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 12:25:58,075 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:25:58,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:25:58,076 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 12:25:58,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-01-18 12:25:58,223 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 12:25:58,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:25:58,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 12 conjunts are in the unsatisfiable core [2022-01-18 12:25:58,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:25:59,039 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 12:25:59,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:25:59,377 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:25:59,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048936124] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:25:59,378 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:25:59,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 7] total 17 [2022-01-18 12:25:59,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842206932] [2022-01-18 12:25:59,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:25:59,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 12:25:59,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:25:59,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 12:25:59,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2022-01-18 12:25:59,379 INFO L87 Difference]: Start difference. First operand 51976 states and 239921 transitions. Second operand has 17 states, 17 states have (on average 22.647058823529413) internal successors, (385), 17 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:26:01,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:26:01,728 INFO L93 Difference]: Finished difference Result 91464 states and 423217 transitions. [2022-01-18 12:26:01,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-01-18 12:26:01,729 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 22.647058823529413) internal successors, (385), 17 states have internal predecessors, (385), 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) Word has length 193 [2022-01-18 12:26:01,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:26:02,128 INFO L225 Difference]: With dead ends: 91464 [2022-01-18 12:26:02,128 INFO L226 Difference]: Without dead ends: 91464 [2022-01-18 12:26:02,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1225 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=846, Invalid=3060, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 12:26:02,129 INFO L933 BasicCegarLoop]: 355 mSDtfsCounter, 1078 mSDsluCounter, 2661 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1078 SdHoareTripleChecker+Valid, 2684 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 12:26:02,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1078 Valid, 2684 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 12:26:02,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91464 states. [2022-01-18 12:26:03,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91464 to 37257. [2022-01-18 12:26:03,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37257 states, 37256 states have (on average 4.562620785913678) internal successors, (169985), 37256 states have internal predecessors, (169985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:26:03,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37257 states to 37257 states and 169985 transitions. [2022-01-18 12:26:03,757 INFO L78 Accepts]: Start accepts. Automaton has 37257 states and 169985 transitions. Word has length 193 [2022-01-18 12:26:03,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:26:03,757 INFO L470 AbstractCegarLoop]: Abstraction has 37257 states and 169985 transitions. [2022-01-18 12:26:03,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 22.647058823529413) internal successors, (385), 17 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:26:03,757 INFO L276 IsEmpty]: Start isEmpty. Operand 37257 states and 169985 transitions. [2022-01-18 12:26:03,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-18 12:26:03,842 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:26:03,842 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:26:03,858 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-01-18 12:26:04,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-01-18 12:26:04,043 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:26:04,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:26:04,044 INFO L85 PathProgramCache]: Analyzing trace with hash -2042137804, now seen corresponding path program 4 times [2022-01-18 12:26:04,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:26:04,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141269174] [2022-01-18 12:26:04,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:26:04,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:26:04,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:26:04,271 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 12:26:04,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:26:04,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141269174] [2022-01-18 12:26:04,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141269174] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:26:04,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262657587] [2022-01-18 12:26:04,272 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 12:26:04,272 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:26:04,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:26:04,280 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 12:26:04,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-01-18 12:26:04,423 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 12:26:04,423 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:26:04,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 15 conjunts are in the unsatisfiable core [2022-01-18 12:26:04,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:26:05,151 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 12:26:05,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:26:06,007 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 12:26:06,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262657587] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:26:06,007 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:26:06,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 11] total 26 [2022-01-18 12:26:06,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168811503] [2022-01-18 12:26:06,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:26:06,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 12:26:06,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:26:06,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 12:26:06,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=524, Unknown=0, NotChecked=0, Total=650 [2022-01-18 12:26:06,009 INFO L87 Difference]: Start difference. First operand 37257 states and 169985 transitions. Second operand has 26 states, 26 states have (on average 18.846153846153847) internal successors, (490), 26 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:26:16,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:26:16,826 INFO L93 Difference]: Finished difference Result 279783 states and 1229862 transitions. [2022-01-18 12:26:16,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2022-01-18 12:26:16,827 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 18.846153846153847) internal successors, (490), 26 states have internal predecessors, (490), 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) Word has length 193 [2022-01-18 12:26:16,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:26:18,438 INFO L225 Difference]: With dead ends: 279783 [2022-01-18 12:26:18,439 INFO L226 Difference]: Without dead ends: 279783 [2022-01-18 12:26:18,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 538 GetRequests, 369 SyntacticMatches, 1 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11808 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=5912, Invalid=22818, Unknown=0, NotChecked=0, Total=28730 [2022-01-18 12:26:18,443 INFO L933 BasicCegarLoop]: 455 mSDtfsCounter, 3429 mSDsluCounter, 6927 mSDsCounter, 0 mSdLazyCounter, 3258 mSolverCounterSat, 414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3429 SdHoareTripleChecker+Valid, 6417 SdHoareTripleChecker+Invalid, 3672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 414 IncrementalHoareTripleChecker+Valid, 3258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-01-18 12:26:18,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3429 Valid, 6417 Invalid, 3672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [414 Valid, 3258 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-01-18 12:26:19,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279783 states. [2022-01-18 12:26:23,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279783 to 52593. [2022-01-18 12:26:23,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52593 states, 52592 states have (on average 4.642759355034986) internal successors, (244172), 52592 states have internal predecessors, (244172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:26:23,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52593 states to 52593 states and 244172 transitions. [2022-01-18 12:26:23,962 INFO L78 Accepts]: Start accepts. Automaton has 52593 states and 244172 transitions. Word has length 193 [2022-01-18 12:26:23,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:26:23,962 INFO L470 AbstractCegarLoop]: Abstraction has 52593 states and 244172 transitions. [2022-01-18 12:26:23,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 18.846153846153847) internal successors, (490), 26 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:26:23,963 INFO L276 IsEmpty]: Start isEmpty. Operand 52593 states and 244172 transitions. [2022-01-18 12:26:24,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-18 12:26:24,102 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:26:24,102 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:26:24,118 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-01-18 12:26:24,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-01-18 12:26:24,303 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:26:24,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:26:24,304 INFO L85 PathProgramCache]: Analyzing trace with hash -989812388, now seen corresponding path program 6 times [2022-01-18 12:26:24,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:26:24,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559462437] [2022-01-18 12:26:24,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:26:24,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:26:24,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:26:24,433 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 12:26:24,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:26:24,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559462437] [2022-01-18 12:26:24,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559462437] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:26:24,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143185587] [2022-01-18 12:26:24,434 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-18 12:26:24,434 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:26:24,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:26:24,435 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 12:26:24,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-01-18 12:26:24,599 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-01-18 12:26:24,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:26:24,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-18 12:26:24,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:26:25,110 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 12:26:25,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:26:25,961 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 12:26:25,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143185587] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 12:26:25,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 12:26:25,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 6] total 12 [2022-01-18 12:26:25,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120738409] [2022-01-18 12:26:25,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:26:25,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:26:25,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:26:25,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:26:25,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-01-18 12:26:25,963 INFO L87 Difference]: Start difference. First operand 52593 states and 244172 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:26:26,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:26:26,755 INFO L93 Difference]: Finished difference Result 101101 states and 475872 transitions. [2022-01-18 12:26:26,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 12:26:26,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-01-18 12:26:26,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:26:27,829 INFO L225 Difference]: With dead ends: 101101 [2022-01-18 12:26:27,830 INFO L226 Difference]: Without dead ends: 101101 [2022-01-18 12:26:27,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 381 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-01-18 12:26:27,830 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 206 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:26:27,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 696 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:26:27,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101101 states. [2022-01-18 12:26:29,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101101 to 54858. [2022-01-18 12:26:29,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54858 states, 54857 states have (on average 4.699053903786208) internal successors, (257776), 54857 states have internal predecessors, (257776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:26:30,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54858 states to 54858 states and 257776 transitions. [2022-01-18 12:26:30,011 INFO L78 Accepts]: Start accepts. Automaton has 54858 states and 257776 transitions. Word has length 193 [2022-01-18 12:26:30,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:26:30,012 INFO L470 AbstractCegarLoop]: Abstraction has 54858 states and 257776 transitions. [2022-01-18 12:26:30,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:26:30,012 INFO L276 IsEmpty]: Start isEmpty. Operand 54858 states and 257776 transitions. [2022-01-18 12:26:30,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-18 12:26:30,157 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:26:30,157 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:26:30,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-01-18 12:26:30,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-01-18 12:26:30,358 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:26:30,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:26:30,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1248151942, now seen corresponding path program 5 times [2022-01-18 12:26:30,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:26:30,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367951816] [2022-01-18 12:26:30,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:26:30,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:26:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:26:30,605 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 12:26:30,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:26:30,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367951816] [2022-01-18 12:26:30,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367951816] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:26:30,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:26:30,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 12:26:30,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281220861] [2022-01-18 12:26:30,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:26:30,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 12:26:30,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:26:30,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 12:26:30,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-18 12:26:30,607 INFO L87 Difference]: Start difference. First operand 54858 states and 257776 transitions. Second operand has 9 states, 9 states have (on average 21.444444444444443) internal successors, (193), 9 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:26:32,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:26:32,449 INFO L93 Difference]: Finished difference Result 112577 states and 524779 transitions. [2022-01-18 12:26:32,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 12:26:32,450 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 21.444444444444443) internal successors, (193), 9 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-01-18 12:26:32,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:26:32,988 INFO L225 Difference]: With dead ends: 112577 [2022-01-18 12:26:32,988 INFO L226 Difference]: Without dead ends: 112577 [2022-01-18 12:26:32,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=260, Unknown=0, NotChecked=0, Total=380 [2022-01-18 12:26:32,989 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 905 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 12:26:32,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [905 Valid, 978 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 12:26:33,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112577 states. [2022-01-18 12:26:35,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112577 to 55386. [2022-01-18 12:26:35,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55386 states, 55385 states have (on average 4.70968673828654) internal successors, (260846), 55385 states have internal predecessors, (260846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:26:35,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55386 states to 55386 states and 260846 transitions. [2022-01-18 12:26:35,954 INFO L78 Accepts]: Start accepts. Automaton has 55386 states and 260846 transitions. Word has length 193 [2022-01-18 12:26:35,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:26:35,954 INFO L470 AbstractCegarLoop]: Abstraction has 55386 states and 260846 transitions. [2022-01-18 12:26:35,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 21.444444444444443) internal successors, (193), 9 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:26:35,954 INFO L276 IsEmpty]: Start isEmpty. Operand 55386 states and 260846 transitions. [2022-01-18 12:26:36,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-18 12:26:36,107 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:26:36,107 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:26:36,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-18 12:26:36,108 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:26:36,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:26:36,108 INFO L85 PathProgramCache]: Analyzing trace with hash -2024308812, now seen corresponding path program 7 times [2022-01-18 12:26:36,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:26:36,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524465089] [2022-01-18 12:26:36,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:26:36,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:26:36,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:26:36,319 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 12:26:36,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:26:36,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524465089] [2022-01-18 12:26:36,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524465089] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:26:36,319 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:26:36,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 12:26:36,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619131366] [2022-01-18 12:26:36,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:26:36,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 12:26:36,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:26:36,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 12:26:36,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-18 12:26:36,320 INFO L87 Difference]: Start difference. First operand 55386 states and 260846 transitions. Second operand has 8 states, 8 states have (on average 24.125) internal successors, (193), 8 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:26:37,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:26:37,735 INFO L93 Difference]: Finished difference Result 84345 states and 395008 transitions. [2022-01-18 12:26:37,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 12:26:37,735 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 24.125) internal successors, (193), 8 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-01-18 12:26:37,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:26:38,142 INFO L225 Difference]: With dead ends: 84345 [2022-01-18 12:26:38,142 INFO L226 Difference]: Without dead ends: 84345 [2022-01-18 12:26:38,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2022-01-18 12:26:38,142 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 350 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 12:26:38,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 1097 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 12:26:38,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84345 states. [2022-01-18 12:26:40,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84345 to 55186. [2022-01-18 12:26:40,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55186 states, 55185 states have (on average 4.709323185648274) internal successors, (259884), 55185 states have internal predecessors, (259884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:26:40,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55186 states to 55186 states and 259884 transitions. [2022-01-18 12:26:40,813 INFO L78 Accepts]: Start accepts. Automaton has 55186 states and 259884 transitions. Word has length 193 [2022-01-18 12:26:40,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:26:40,813 INFO L470 AbstractCegarLoop]: Abstraction has 55186 states and 259884 transitions. [2022-01-18 12:26:40,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.125) internal successors, (193), 8 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:26:40,813 INFO L276 IsEmpty]: Start isEmpty. Operand 55186 states and 259884 transitions. [2022-01-18 12:26:41,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-18 12:26:41,033 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:26:41,034 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:26:41,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-18 12:26:41,034 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:26:41,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:26:41,034 INFO L85 PathProgramCache]: Analyzing trace with hash 2061359026, now seen corresponding path program 6 times [2022-01-18 12:26:41,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:26:41,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632447556] [2022-01-18 12:26:41,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:26:41,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:26:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:26:41,246 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 12:26:41,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:26:41,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632447556] [2022-01-18 12:26:41,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632447556] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:26:41,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:26:41,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 12:26:41,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886065855] [2022-01-18 12:26:41,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:26:41,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 12:26:41,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:26:41,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 12:26:41,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-01-18 12:26:41,248 INFO L87 Difference]: Start difference. First operand 55186 states and 259884 transitions. Second operand has 8 states, 8 states have (on average 24.125) internal successors, (193), 8 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:26:41,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:26:41,810 INFO L93 Difference]: Finished difference Result 58290 states and 272709 transitions. [2022-01-18 12:26:41,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 12:26:41,810 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 24.125) internal successors, (193), 8 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-01-18 12:26:41,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:26:42,037 INFO L225 Difference]: With dead ends: 58290 [2022-01-18 12:26:42,037 INFO L226 Difference]: Without dead ends: 58290 [2022-01-18 12:26:42,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-18 12:26:42,038 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 440 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:26:42,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [440 Valid, 745 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:26:42,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58290 states. [2022-01-18 12:26:43,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58290 to 54346. [2022-01-18 12:26:43,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54346 states, 54345 states have (on average 4.70413101481277) internal successors, (255646), 54345 states have internal predecessors, (255646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:26:44,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54346 states to 54346 states and 255646 transitions. [2022-01-18 12:26:44,261 INFO L78 Accepts]: Start accepts. Automaton has 54346 states and 255646 transitions. Word has length 193 [2022-01-18 12:26:44,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:26:44,262 INFO L470 AbstractCegarLoop]: Abstraction has 54346 states and 255646 transitions. [2022-01-18 12:26:44,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.125) internal successors, (193), 8 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:26:44,262 INFO L276 IsEmpty]: Start isEmpty. Operand 54346 states and 255646 transitions. [2022-01-18 12:26:44,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-18 12:26:44,409 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:26:44,409 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:26:44,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-18 12:26:44,409 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:26:44,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:26:44,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1243682844, now seen corresponding path program 7 times [2022-01-18 12:26:44,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:26:44,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243075935] [2022-01-18 12:26:44,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:26:44,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:26:44,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:26:44,612 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:26:44,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:26:44,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243075935] [2022-01-18 12:26:44,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243075935] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:26:44,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:26:44,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 12:26:44,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741468348] [2022-01-18 12:26:44,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:26:44,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 12:26:44,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:26:44,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 12:26:44,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 12:26:44,614 INFO L87 Difference]: Start difference. First operand 54346 states and 255646 transitions. Second operand has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:26:45,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:26:45,301 INFO L93 Difference]: Finished difference Result 58695 states and 273885 transitions. [2022-01-18 12:26:45,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 12:26:45,301 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-01-18 12:26:45,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:26:45,529 INFO L225 Difference]: With dead ends: 58695 [2022-01-18 12:26:45,529 INFO L226 Difference]: Without dead ends: 58074 [2022-01-18 12:26:45,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-01-18 12:26:45,530 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 303 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:26:45,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [303 Valid, 886 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:26:45,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58074 states. [2022-01-18 12:26:46,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58074 to 54122. [2022-01-18 12:26:47,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54122 states, 54121 states have (on average 4.708449585188744) internal successors, (254826), 54121 states have internal predecessors, (254826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:26:47,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54122 states to 54122 states and 254826 transitions. [2022-01-18 12:26:47,777 INFO L78 Accepts]: Start accepts. Automaton has 54122 states and 254826 transitions. Word has length 193 [2022-01-18 12:26:47,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:26:47,777 INFO L470 AbstractCegarLoop]: Abstraction has 54122 states and 254826 transitions. [2022-01-18 12:26:47,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:26:47,777 INFO L276 IsEmpty]: Start isEmpty. Operand 54122 states and 254826 transitions. [2022-01-18 12:26:47,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-18 12:26:47,920 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:26:47,920 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:26:47,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-18 12:26:47,921 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:26:47,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:26:47,921 INFO L85 PathProgramCache]: Analyzing trace with hash 996525696, now seen corresponding path program 8 times [2022-01-18 12:26:47,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:26:47,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362993107] [2022-01-18 12:26:47,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:26:47,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:26:47,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:26:48,091 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 12:26:48,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:26:48,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362993107] [2022-01-18 12:26:48,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362993107] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:26:48,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286827070] [2022-01-18 12:26:48,092 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 12:26:48,092 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:26:48,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:26:48,096 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 12:26:48,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-01-18 12:26:48,246 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 12:26:48,246 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:26:48,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 15 conjunts are in the unsatisfiable core [2022-01-18 12:26:48,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:26:49,040 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 12:26:49,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:26:49,704 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 12:26:49,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286827070] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 12:26:49,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 12:26:49,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [7, 10] total 21 [2022-01-18 12:26:49,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304182710] [2022-01-18 12:26:49,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:26:49,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 12:26:49,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:26:49,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 12:26:49,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2022-01-18 12:26:49,706 INFO L87 Difference]: Start difference. First operand 54122 states and 254826 transitions. Second operand has 10 states, 10 states have (on average 19.3) internal successors, (193), 10 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:26:51,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:26:51,213 INFO L93 Difference]: Finished difference Result 98211 states and 446405 transitions. [2022-01-18 12:26:51,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 12:26:51,213 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 19.3) internal successors, (193), 10 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-01-18 12:26:51,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:26:51,643 INFO L225 Difference]: With dead ends: 98211 [2022-01-18 12:26:51,643 INFO L226 Difference]: Without dead ends: 98211 [2022-01-18 12:26:51,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 373 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=248, Invalid=1012, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 12:26:51,644 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 1102 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1102 SdHoareTripleChecker+Valid, 1350 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 12:26:51,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1102 Valid, 1350 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 12:26:51,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98211 states. [2022-01-18 12:26:53,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98211 to 52331. [2022-01-18 12:26:53,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52331 states, 52330 states have (on average 4.661685457672463) internal successors, (243946), 52330 states have internal predecessors, (243946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:26:54,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52331 states to 52331 states and 243946 transitions. [2022-01-18 12:26:54,401 INFO L78 Accepts]: Start accepts. Automaton has 52331 states and 243946 transitions. Word has length 193 [2022-01-18 12:26:54,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:26:54,401 INFO L470 AbstractCegarLoop]: Abstraction has 52331 states and 243946 transitions. [2022-01-18 12:26:54,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 19.3) internal successors, (193), 10 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:26:54,402 INFO L276 IsEmpty]: Start isEmpty. Operand 52331 states and 243946 transitions. [2022-01-18 12:26:54,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-18 12:26:54,553 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:26:54,553 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:26:54,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-01-18 12:26:54,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-01-18 12:26:54,754 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:26:54,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:26:54,754 INFO L85 PathProgramCache]: Analyzing trace with hash 805055230, now seen corresponding path program 9 times [2022-01-18 12:26:54,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:26:54,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430521839] [2022-01-18 12:26:54,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:26:54,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:26:54,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:26:54,961 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 12:26:54,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:26:54,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430521839] [2022-01-18 12:26:54,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430521839] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:26:54,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:26:54,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 12:26:54,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923949548] [2022-01-18 12:26:54,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:26:54,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 12:26:54,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:26:54,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 12:26:54,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-01-18 12:26:54,963 INFO L87 Difference]: Start difference. First operand 52331 states and 243946 transitions. Second operand has 8 states, 8 states have (on average 24.125) internal successors, (193), 8 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:26:55,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:26:55,536 INFO L93 Difference]: Finished difference Result 59668 states and 275099 transitions. [2022-01-18 12:26:55,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 12:26:55,536 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 24.125) internal successors, (193), 8 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-01-18 12:26:55,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:26:55,769 INFO L225 Difference]: With dead ends: 59668 [2022-01-18 12:26:55,769 INFO L226 Difference]: Without dead ends: 59668 [2022-01-18 12:26:55,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-01-18 12:26:55,770 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 483 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:26:55,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [483 Valid, 644 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:26:55,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59668 states. [2022-01-18 12:26:57,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59668 to 52682. [2022-01-18 12:26:57,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52682 states, 52681 states have (on average 4.653005827527951) internal successors, (245125), 52681 states have internal predecessors, (245125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:26:58,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52682 states to 52682 states and 245125 transitions. [2022-01-18 12:26:58,191 INFO L78 Accepts]: Start accepts. Automaton has 52682 states and 245125 transitions. Word has length 193 [2022-01-18 12:26:58,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:26:58,191 INFO L470 AbstractCegarLoop]: Abstraction has 52682 states and 245125 transitions. [2022-01-18 12:26:58,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.125) internal successors, (193), 8 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:26:58,191 INFO L276 IsEmpty]: Start isEmpty. Operand 52682 states and 245125 transitions. [2022-01-18 12:26:58,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-18 12:26:58,345 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:26:58,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:26:58,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-18 12:26:58,345 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:26:58,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:26:58,346 INFO L85 PathProgramCache]: Analyzing trace with hash -599160132, now seen corresponding path program 10 times [2022-01-18 12:26:58,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:26:58,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795695491] [2022-01-18 12:26:58,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:26:58,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:26:58,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:26:58,487 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 12:26:58,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:26:58,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795695491] [2022-01-18 12:26:58,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795695491] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:26:58,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:26:58,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:26:58,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810536049] [2022-01-18 12:26:58,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:26:58,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:26:58,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:26:58,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:26:58,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:26:58,488 INFO L87 Difference]: Start difference. First operand 52682 states and 245125 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:26:59,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:26:59,062 INFO L93 Difference]: Finished difference Result 68478 states and 317072 transitions. [2022-01-18 12:26:59,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 12:26:59,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-01-18 12:26:59,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:26:59,391 INFO L225 Difference]: With dead ends: 68478 [2022-01-18 12:26:59,391 INFO L226 Difference]: Without dead ends: 67386 [2022-01-18 12:26:59,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:26:59,392 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 143 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:26:59,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 593 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:26:59,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67386 states. [2022-01-18 12:27:01,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67386 to 58234. [2022-01-18 12:27:01,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58234 states, 58233 states have (on average 4.641680833891436) internal successors, (270299), 58233 states have internal predecessors, (270299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:27:02,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58234 states to 58234 states and 270299 transitions. [2022-01-18 12:27:02,106 INFO L78 Accepts]: Start accepts. Automaton has 58234 states and 270299 transitions. Word has length 193 [2022-01-18 12:27:02,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:27:02,106 INFO L470 AbstractCegarLoop]: Abstraction has 58234 states and 270299 transitions. [2022-01-18 12:27:02,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:27:02,107 INFO L276 IsEmpty]: Start isEmpty. Operand 58234 states and 270299 transitions. [2022-01-18 12:27:02,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-18 12:27:02,263 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:27:02,263 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:27:02,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-18 12:27:02,263 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:27:02,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:27:02,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1872979660, now seen corresponding path program 8 times [2022-01-18 12:27:02,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:27:02,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839577871] [2022-01-18 12:27:02,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:27:02,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:27:02,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:27:02,386 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 12:27:02,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:27:02,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839577871] [2022-01-18 12:27:02,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839577871] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:27:02,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411679666] [2022-01-18 12:27:02,386 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 12:27:02,387 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:27:02,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:27:02,392 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) [2022-01-18 12:27:02,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-01-18 12:27:02,570 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 12:27:02,570 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:27:02,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 11 conjunts are in the unsatisfiable core [2022-01-18 12:27:02,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:27:03,464 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 12:27:03,465 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 12:27:03,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411679666] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:27:03,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 12:27:03,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2022-01-18 12:27:03,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416726594] [2022-01-18 12:27:03,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:27:03,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 12:27:03,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:27:03,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 12:27:03,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-01-18 12:27:03,466 INFO L87 Difference]: Start difference. First operand 58234 states and 270299 transitions. Second operand has 8 states, 8 states have (on average 24.125) internal successors, (193), 8 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:27:04,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:27:04,918 INFO L93 Difference]: Finished difference Result 90580 states and 418933 transitions. [2022-01-18 12:27:04,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 12:27:04,919 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 24.125) internal successors, (193), 8 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-01-18 12:27:04,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:27:05,489 INFO L225 Difference]: With dead ends: 90580 [2022-01-18 12:27:05,489 INFO L226 Difference]: Without dead ends: 90580 [2022-01-18 12:27:05,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-01-18 12:27:05,490 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 423 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 12:27:05,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [423 Valid, 1142 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 12:27:05,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90580 states. [2022-01-18 12:27:07,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90580 to 57650. [2022-01-18 12:27:07,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57650 states, 57649 states have (on average 4.64217939599993) internal successors, (267617), 57649 states have internal predecessors, (267617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:27:08,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57650 states to 57650 states and 267617 transitions. [2022-01-18 12:27:08,226 INFO L78 Accepts]: Start accepts. Automaton has 57650 states and 267617 transitions. Word has length 193 [2022-01-18 12:27:08,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:27:08,227 INFO L470 AbstractCegarLoop]: Abstraction has 57650 states and 267617 transitions. [2022-01-18 12:27:08,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.125) internal successors, (193), 8 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:27:08,227 INFO L276 IsEmpty]: Start isEmpty. Operand 57650 states and 267617 transitions. [2022-01-18 12:27:08,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-18 12:27:08,380 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:27:08,380 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:27:08,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-01-18 12:27:08,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:27:08,581 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:27:08,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:27:08,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1016492606, now seen corresponding path program 11 times [2022-01-18 12:27:08,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:27:08,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020629019] [2022-01-18 12:27:08,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:27:08,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:27:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:27:08,693 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 12:27:08,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:27:08,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020629019] [2022-01-18 12:27:08,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020629019] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:27:08,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420658501] [2022-01-18 12:27:08,694 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 12:27:08,694 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:27:08,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:27:08,696 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) [2022-01-18 12:27:08,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-01-18 12:27:08,870 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-01-18 12:27:08,870 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:27:08,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 14 conjunts are in the unsatisfiable core [2022-01-18 12:27:08,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:27:09,784 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 12:27:09,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:27:10,240 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 12:27:10,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420658501] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:27:10,240 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:27:10,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 10, 9] total 20 [2022-01-18 12:27:10,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964040897] [2022-01-18 12:27:10,240 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:27:10,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 12:27:10,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:27:10,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 12:27:10,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2022-01-18 12:27:10,241 INFO L87 Difference]: Start difference. First operand 57650 states and 267617 transitions. Second operand has 20 states, 20 states have (on average 24.35) internal successors, (487), 20 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:27:17,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:27:17,280 INFO L93 Difference]: Finished difference Result 243778 states and 1115945 transitions. [2022-01-18 12:27:17,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-01-18 12:27:17,280 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 24.35) internal successors, (487), 20 states have internal predecessors, (487), 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) Word has length 193 [2022-01-18 12:27:17,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:27:19,508 INFO L225 Difference]: With dead ends: 243778 [2022-01-18 12:27:19,508 INFO L226 Difference]: Without dead ends: 240580 [2022-01-18 12:27:19,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 555 GetRequests, 453 SyntacticMatches, 1 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3401 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1907, Invalid=8599, Unknown=0, NotChecked=0, Total=10506 [2022-01-18 12:27:19,509 INFO L933 BasicCegarLoop]: 579 mSDtfsCounter, 1814 mSDsluCounter, 5944 mSDsCounter, 0 mSdLazyCounter, 3408 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1814 SdHoareTripleChecker+Valid, 5353 SdHoareTripleChecker+Invalid, 3590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 3408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-18 12:27:19,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1814 Valid, 5353 Invalid, 3590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 3408 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-18 12:27:19,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240580 states. [2022-01-18 12:27:24,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240580 to 83988. [2022-01-18 12:27:24,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83988 states, 83987 states have (on average 4.769892959624704) internal successors, (400609), 83987 states have internal predecessors, (400609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:27:25,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83988 states to 83988 states and 400609 transitions. [2022-01-18 12:27:25,438 INFO L78 Accepts]: Start accepts. Automaton has 83988 states and 400609 transitions. Word has length 193 [2022-01-18 12:27:25,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:27:25,439 INFO L470 AbstractCegarLoop]: Abstraction has 83988 states and 400609 transitions. [2022-01-18 12:27:25,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 24.35) internal successors, (487), 20 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:27:25,439 INFO L276 IsEmpty]: Start isEmpty. Operand 83988 states and 400609 transitions. [2022-01-18 12:27:25,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-18 12:27:25,669 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:27:25,669 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:27:25,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-01-18 12:27:25,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:27:25,870 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:27:25,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:27:25,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1606687542, now seen corresponding path program 9 times [2022-01-18 12:27:25,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:27:25,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811196909] [2022-01-18 12:27:25,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:27:25,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:27:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:27:25,983 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 12:27:25,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:27:25,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811196909] [2022-01-18 12:27:25,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811196909] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:27:25,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:27:25,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:27:25,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469414712] [2022-01-18 12:27:25,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:27:25,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:27:25,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:27:25,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:27:25,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:27:25,984 INFO L87 Difference]: Start difference. First operand 83988 states and 400609 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:27:27,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:27:27,597 INFO L93 Difference]: Finished difference Result 127701 states and 606231 transitions. [2022-01-18 12:27:27,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 12:27:27,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-01-18 12:27:27,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:27:28,228 INFO L225 Difference]: With dead ends: 127701 [2022-01-18 12:27:28,228 INFO L226 Difference]: Without dead ends: 126027 [2022-01-18 12:27:28,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:27:28,228 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 184 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:27:28,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 512 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:27:28,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126027 states. [2022-01-18 12:27:31,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126027 to 95940. [2022-01-18 12:27:31,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95940 states, 95939 states have (on average 4.7917530931112475) internal successors, (459716), 95939 states have internal predecessors, (459716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:27:32,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95940 states to 95940 states and 459716 transitions. [2022-01-18 12:27:32,544 INFO L78 Accepts]: Start accepts. Automaton has 95940 states and 459716 transitions. Word has length 193 [2022-01-18 12:27:32,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:27:32,545 INFO L470 AbstractCegarLoop]: Abstraction has 95940 states and 459716 transitions. [2022-01-18 12:27:32,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:27:32,545 INFO L276 IsEmpty]: Start isEmpty. Operand 95940 states and 459716 transitions. [2022-01-18 12:27:32,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-18 12:27:32,842 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:27:32,842 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:27:32,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-18 12:27:32,843 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:27:32,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:27:32,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1526553572, now seen corresponding path program 12 times [2022-01-18 12:27:32,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:27:32,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054921391] [2022-01-18 12:27:32,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:27:32,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:27:32,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:27:32,990 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 12:27:32,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:27:32,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054921391] [2022-01-18 12:27:32,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054921391] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:27:32,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:27:32,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 12:27:32,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136825643] [2022-01-18 12:27:32,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:27:32,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 12:27:32,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:27:32,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 12:27:32,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-18 12:27:32,992 INFO L87 Difference]: Start difference. First operand 95940 states and 459716 transitions. Second operand has 8 states, 8 states have (on average 24.125) internal successors, (193), 8 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:27:34,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:27:34,661 INFO L93 Difference]: Finished difference Result 94922 states and 454124 transitions. [2022-01-18 12:27:34,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 12:27:34,662 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 24.125) internal successors, (193), 8 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-01-18 12:27:34,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:27:35,150 INFO L225 Difference]: With dead ends: 94922 [2022-01-18 12:27:35,151 INFO L226 Difference]: Without dead ends: 94160 [2022-01-18 12:27:35,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-01-18 12:27:35,151 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 438 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:27:35,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 899 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:27:35,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94160 states. [2022-01-18 12:27:37,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94160 to 93660. [2022-01-18 12:27:38,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93660 states, 93659 states have (on average 4.800115311929447) internal successors, (449574), 93659 states have internal predecessors, (449574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:27:38,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93660 states to 93660 states and 449574 transitions. [2022-01-18 12:27:38,561 INFO L78 Accepts]: Start accepts. Automaton has 93660 states and 449574 transitions. Word has length 193 [2022-01-18 12:27:38,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:27:38,561 INFO L470 AbstractCegarLoop]: Abstraction has 93660 states and 449574 transitions. [2022-01-18 12:27:38,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.125) internal successors, (193), 8 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:27:38,561 INFO L276 IsEmpty]: Start isEmpty. Operand 93660 states and 449574 transitions. [2022-01-18 12:27:38,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-18 12:27:38,852 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:27:38,852 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:27:38,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-18 12:27:38,852 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:27:38,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:27:38,853 INFO L85 PathProgramCache]: Analyzing trace with hash -2046069404, now seen corresponding path program 13 times [2022-01-18 12:27:38,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:27:38,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454011673] [2022-01-18 12:27:38,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:27:38,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:27:38,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:27:38,981 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 12:27:38,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:27:38,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454011673] [2022-01-18 12:27:38,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454011673] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:27:38,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:27:38,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:27:38,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035666179] [2022-01-18 12:27:38,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:27:38,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:27:38,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:27:38,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:27:38,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:27:38,983 INFO L87 Difference]: Start difference. First operand 93660 states and 449574 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:27:40,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:27:40,642 INFO L93 Difference]: Finished difference Result 128558 states and 604461 transitions. [2022-01-18 12:27:40,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 12:27:40,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-01-18 12:27:40,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:27:41,885 INFO L225 Difference]: With dead ends: 128558 [2022-01-18 12:27:41,885 INFO L226 Difference]: Without dead ends: 128492 [2022-01-18 12:27:41,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:27:41,885 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 162 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:27:41,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 639 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:27:42,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128492 states. [2022-01-18 12:27:44,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128492 to 87600. [2022-01-18 12:27:44,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87600 states, 87599 states have (on average 4.803639310951039) internal successors, (420794), 87599 states have internal predecessors, (420794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:27:45,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87600 states to 87600 states and 420794 transitions. [2022-01-18 12:27:45,445 INFO L78 Accepts]: Start accepts. Automaton has 87600 states and 420794 transitions. Word has length 193 [2022-01-18 12:27:45,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:27:45,445 INFO L470 AbstractCegarLoop]: Abstraction has 87600 states and 420794 transitions. [2022-01-18 12:27:45,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:27:45,445 INFO L276 IsEmpty]: Start isEmpty. Operand 87600 states and 420794 transitions. [2022-01-18 12:27:45,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-18 12:27:45,755 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:27:45,755 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:27:45,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-18 12:27:45,755 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:27:45,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:27:45,756 INFO L85 PathProgramCache]: Analyzing trace with hash -827636934, now seen corresponding path program 10 times [2022-01-18 12:27:45,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:27:45,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141866316] [2022-01-18 12:27:45,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:27:45,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:27:45,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:27:45,853 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 12:27:45,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:27:45,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141866316] [2022-01-18 12:27:45,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141866316] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:27:45,854 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:27:45,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:27:45,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91611202] [2022-01-18 12:27:45,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:27:45,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:27:45,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:27:45,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:27:45,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:27:45,855 INFO L87 Difference]: Start difference. First operand 87600 states and 420794 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:27:47,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:27:47,916 INFO L93 Difference]: Finished difference Result 153083 states and 731277 transitions. [2022-01-18 12:27:47,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 12:27:47,916 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-01-18 12:27:47,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:27:49,432 INFO L225 Difference]: With dead ends: 153083 [2022-01-18 12:27:49,432 INFO L226 Difference]: Without dead ends: 153083 [2022-01-18 12:27:49,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:27:49,433 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 177 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:27:49,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 815 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:27:49,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153083 states. [2022-01-18 12:27:52,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153083 to 84335. [2022-01-18 12:27:52,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84335 states, 84334 states have (on average 4.768574951976664) internal successors, (402153), 84334 states have internal predecessors, (402153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:27:53,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84335 states to 84335 states and 402153 transitions. [2022-01-18 12:27:53,565 INFO L78 Accepts]: Start accepts. Automaton has 84335 states and 402153 transitions. Word has length 193 [2022-01-18 12:27:53,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:27:53,565 INFO L470 AbstractCegarLoop]: Abstraction has 84335 states and 402153 transitions. [2022-01-18 12:27:53,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:27:53,565 INFO L276 IsEmpty]: Start isEmpty. Operand 84335 states and 402153 transitions. [2022-01-18 12:27:53,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-18 12:27:53,818 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:27:53,818 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:27:53,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-18 12:27:53,818 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:27:53,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:27:53,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1240520026, now seen corresponding path program 11 times [2022-01-18 12:27:53,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:27:53,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289173737] [2022-01-18 12:27:53,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:27:53,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:27:53,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:27:53,917 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 12:27:53,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:27:53,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289173737] [2022-01-18 12:27:53,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289173737] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:27:53,917 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:27:53,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:27:53,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751118976] [2022-01-18 12:27:53,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:27:53,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:27:53,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:27:53,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:27:53,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:27:53,918 INFO L87 Difference]: Start difference. First operand 84335 states and 402153 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:27:55,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:27:55,626 INFO L93 Difference]: Finished difference Result 122883 states and 574583 transitions. [2022-01-18 12:27:55,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 12:27:55,626 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-01-18 12:27:55,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:27:56,291 INFO L225 Difference]: With dead ends: 122883 [2022-01-18 12:27:56,291 INFO L226 Difference]: Without dead ends: 121209 [2022-01-18 12:27:56,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:27:56,292 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 136 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:27:56,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 618 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:27:56,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121209 states. [2022-01-18 12:27:59,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121209 to 71631. [2022-01-18 12:27:59,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71631 states, 71630 states have (on average 4.654111405835544) internal successors, (333374), 71630 states have internal predecessors, (333374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:27:59,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71631 states to 71631 states and 333374 transitions. [2022-01-18 12:27:59,548 INFO L78 Accepts]: Start accepts. Automaton has 71631 states and 333374 transitions. Word has length 193 [2022-01-18 12:27:59,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:27:59,549 INFO L470 AbstractCegarLoop]: Abstraction has 71631 states and 333374 transitions. [2022-01-18 12:27:59,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:27:59,549 INFO L276 IsEmpty]: Start isEmpty. Operand 71631 states and 333374 transitions. [2022-01-18 12:27:59,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-18 12:27:59,742 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:27:59,742 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:27:59,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-18 12:27:59,743 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:27:59,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:27:59,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1813911404, now seen corresponding path program 12 times [2022-01-18 12:27:59,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:27:59,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786769165] [2022-01-18 12:27:59,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:27:59,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:27:59,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:27:59,816 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 12:27:59,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:27:59,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786769165] [2022-01-18 12:27:59,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786769165] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:27:59,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:27:59,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:27:59,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211607788] [2022-01-18 12:27:59,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:27:59,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:27:59,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:27:59,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:27:59,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:27:59,818 INFO L87 Difference]: Start difference. First operand 71631 states and 333374 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:28:01,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:28:01,056 INFO L93 Difference]: Finished difference Result 71412 states and 326670 transitions. [2022-01-18 12:28:01,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 12:28:01,057 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-01-18 12:28:01,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:28:01,343 INFO L225 Difference]: With dead ends: 71412 [2022-01-18 12:28:01,344 INFO L226 Difference]: Without dead ends: 68553 [2022-01-18 12:28:01,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-18 12:28:01,344 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 133 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:28:01,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 615 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:28:01,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68553 states. [2022-01-18 12:28:03,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68553 to 59383. [2022-01-18 12:28:03,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59383 states, 59382 states have (on average 4.6564952342460675) internal successors, (276512), 59382 states have internal predecessors, (276512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:28:03,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59383 states to 59383 states and 276512 transitions. [2022-01-18 12:28:03,381 INFO L78 Accepts]: Start accepts. Automaton has 59383 states and 276512 transitions. Word has length 193 [2022-01-18 12:28:03,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:28:03,381 INFO L470 AbstractCegarLoop]: Abstraction has 59383 states and 276512 transitions. [2022-01-18 12:28:03,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:28:03,382 INFO L276 IsEmpty]: Start isEmpty. Operand 59383 states and 276512 transitions. [2022-01-18 12:28:04,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-18 12:28:04,094 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:28:04,094 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:28:04,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-18 12:28:04,094 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:28:04,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:28:04,095 INFO L85 PathProgramCache]: Analyzing trace with hash -703371514, now seen corresponding path program 14 times [2022-01-18 12:28:04,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:28:04,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861405048] [2022-01-18 12:28:04,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:28:04,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:28:04,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:28:04,170 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 12:28:04,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:28:04,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861405048] [2022-01-18 12:28:04,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861405048] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:28:04,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:28:04,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:28:04,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690263354] [2022-01-18 12:28:04,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:28:04,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:28:04,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:28:04,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:28:04,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:28:04,172 INFO L87 Difference]: Start difference. First operand 59383 states and 276512 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:28:04,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:28:04,697 INFO L93 Difference]: Finished difference Result 62158 states and 285787 transitions. [2022-01-18 12:28:04,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 12:28:04,698 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2022-01-18 12:28:04,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:28:04,948 INFO L225 Difference]: With dead ends: 62158 [2022-01-18 12:28:04,949 INFO L226 Difference]: Without dead ends: 62026 [2022-01-18 12:28:04,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:28:04,949 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 144 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:28:04,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 474 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:28:05,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62026 states. [2022-01-18 12:28:06,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62026 to 46898. [2022-01-18 12:28:06,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46898 states, 46897 states have (on average 4.651086423438599) internal successors, (218122), 46897 states have internal predecessors, (218122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:28:06,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46898 states to 46898 states and 218122 transitions. [2022-01-18 12:28:06,603 INFO L78 Accepts]: Start accepts. Automaton has 46898 states and 218122 transitions. Word has length 193 [2022-01-18 12:28:06,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:28:06,604 INFO L470 AbstractCegarLoop]: Abstraction has 46898 states and 218122 transitions. [2022-01-18 12:28:06,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:28:06,604 INFO L276 IsEmpty]: Start isEmpty. Operand 46898 states and 218122 transitions. [2022-01-18 12:28:06,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-18 12:28:06,724 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:28:06,724 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:28:06,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-18 12:28:06,725 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 12:28:06,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:28:06,725 INFO L85 PathProgramCache]: Analyzing trace with hash 2026728165, now seen corresponding path program 1 times [2022-01-18 12:28:06,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:28:06,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125298134] [2022-01-18 12:28:06,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:28:06,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:28:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:28:09,420 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:28:09,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:28:09,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125298134] [2022-01-18 12:28:09,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125298134] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:28:09,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052025517] [2022-01-18 12:28:09,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:28:09,420 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:28:09,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:28:09,426 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 12:28:09,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-01-18 12:28:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:28:09,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 119 conjunts are in the unsatisfiable core [2022-01-18 12:28:09,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:28:09,680 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 12:28:09,734 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-01-18 12:28:09,735 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-01-18 12:28:09,808 INFO L353 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-01-18 12:28:09,808 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 17 treesize of output 22 [2022-01-18 12:28:10,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 12:28:10,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 12:28:10,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 12:28:10,958 INFO L353 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-01-18 12:28:10,958 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 33 [2022-01-18 12:28:11,438 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-01-18 12:28:13,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 12:28:13,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 12:28:13,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 12:28:13,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 12:28:13,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 12:28:13,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 12:28:13,478 INFO L353 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2022-01-18 12:28:13,478 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 20 [2022-01-18 12:28:13,903 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-01-18 12:28:15,084 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 12:28:15,434 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 12:28:16,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 12:28:16,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 12:28:16,237 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 33 [2022-01-18 12:28:16,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 12:28:16,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 12:28:16,697 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 33 [2022-01-18 12:28:17,823 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 13 [2022-01-18 12:28:17,856 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:28:17,856 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:28:27,853 INFO L353 Elim1Store]: treesize reduction 27, result has 61.4 percent of original size [2022-01-18 12:28:27,853 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 225 treesize of output 123 [2022-01-18 12:28:28,009 INFO L353 Elim1Store]: treesize reduction 81, result has 54.7 percent of original size [2022-01-18 12:28:28,010 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 231898 treesize of output 223731 [2022-01-18 12:28:28,949 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 12:28:28,950 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 223222 treesize of output 198662 [2022-01-18 12:28:29,486 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 12:28:29,487 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 198646 treesize of output 149510 [2022-01-18 12:28:29,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 12:28:29,973 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 12:28:29,974 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 149884 treesize of output 143740 [2022-01-18 12:28:30,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 12:28:30,497 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 12:28:30,498 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 143692 treesize of output 131356 Received shutdown request... [2022-01-18 12:36:41,793 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 12:36:41,793 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 [2022-01-18 12:36:41,823 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-01-18 12:36:41,824 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-01-18 12:36:41,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-01-18 12:36:42,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2022-01-18 12:36:42,025 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 197 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1 for 76ms.. [2022-01-18 12:36:42,027 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-01-18 12:36:42,027 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-01-18 12:36:42,027 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-01-18 12:36:42,027 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-01-18 12:36:42,029 INFO L732 BasicCegarLoop]: Path program histogram: [14, 12, 6, 5, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:36:42,031 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 12:36:42,031 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 12:36:42,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 12:36:42 BasicIcfg [2022-01-18 12:36:42,033 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 12:36:42,033 INFO L158 Benchmark]: Toolchain (without parser) took 755531.14ms. Allocated memory was 358.6MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 304.6MB in the beginning and 5.5GB in the end (delta: -5.2GB). Peak memory consumption was 12.7GB. Max. memory is 16.0GB. [2022-01-18 12:36:42,033 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 358.6MB. Free memory is still 321.2MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 12:36:42,033 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.37ms. Allocated memory is still 358.6MB. Free memory was 304.4MB in the beginning and 328.7MB in the end (delta: -24.3MB). Peak memory consumption was 17.4MB. Max. memory is 16.0GB. [2022-01-18 12:36:42,034 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.60ms. Allocated memory is still 358.6MB. Free memory was 328.7MB in the beginning and 325.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 12:36:42,034 INFO L158 Benchmark]: Boogie Preprocessor took 26.62ms. Allocated memory is still 358.6MB. Free memory was 325.6MB in the beginning and 324.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 12:36:42,034 INFO L158 Benchmark]: RCFGBuilder took 693.90ms. Allocated memory is still 358.6MB. Free memory was 324.3MB in the beginning and 285.7MB in the end (delta: 38.6MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. [2022-01-18 12:36:42,036 INFO L158 Benchmark]: TraceAbstraction took 754513.94ms. Allocated memory was 358.6MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 285.7MB in the beginning and 5.5GB in the end (delta: -5.2GB). Peak memory consumption was 12.7GB. Max. memory is 16.0GB. [2022-01-18 12:36:42,038 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 358.6MB. Free memory is still 321.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 254.37ms. Allocated memory is still 358.6MB. Free memory was 304.4MB in the beginning and 328.7MB in the end (delta: -24.3MB). Peak memory consumption was 17.4MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 37.60ms. Allocated memory is still 358.6MB. Free memory was 328.7MB in the beginning and 325.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.62ms. Allocated memory is still 358.6MB. Free memory was 325.6MB in the beginning and 324.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 693.90ms. Allocated memory is still 358.6MB. Free memory was 324.3MB in the beginning and 285.7MB in the end (delta: 38.6MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. * TraceAbstraction took 754513.94ms. Allocated memory was 358.6MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 285.7MB in the beginning and 5.5GB in the end (delta: -5.2GB). Peak memory consumption was 12.7GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 152]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 197 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1 for 76ms.. - TimeoutResultAtElement [Line: 145]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 197 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1 for 76ms.. - TimeoutResultAtElement [Line: 143]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 197 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1 for 76ms.. - TimeoutResultAtElement [Line: 142]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 197 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1 for 76ms.. - TimeoutResultAtElement [Line: 144]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 197 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1 for 76ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 248 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 754.4s, OverallIterations: 44, TraceHistogramMax: 1, PathProgramHistogramMax: 14, EmptinessCheckTime: 8.4s, AutomataDifference: 96.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.9s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28812 SdHoareTripleChecker+Valid, 12.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28812 mSDsluCounter, 57887 SdHoareTripleChecker+Invalid, 10.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 53132 mSDsCounter, 1650 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21000 IncrementalHoareTripleChecker+Invalid, 22650 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1650 mSolverCounterUnsat, 11219 mSDtfsCounter, 21000 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6157 GetRequests, 5176 SyntacticMatches, 7 SemanticMatches, 974 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26937 ImplicationChecksByTransitivity, 21.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95940occurred in iteration=37, InterpolantAutomatonStates: 859, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 103.1s AutomataMinimizationTime, 43 MinimizatonAttempts, 1621867 StatesRemovedByMinimization, 42 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 22.5s InterpolantComputationTime, 10899 NumberOfCodeBlocks, 10899 NumberOfCodeBlocksAsserted, 71 NumberOfCheckSat, 13101 ConstructedInterpolants, 0 QuantifiedInterpolants, 70841 SizeOfPredicates, 151 NumberOfNonLiveVariables, 7261 ConjunctsInSsa, 176 ConjunctsInUnsatCore, 70 InterpolantComputations, 37 PerfectInterpolantSequences, 251/288 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