/usr/bin/java -Xmx8000000000 -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-MCRwithDepranks-Lazy-NoForkJoinOpt.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/test-hard1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 09:50:41,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 09:50:41,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 09:50:41,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 09:50:41,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 09:50:41,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 09:50:41,345 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 09:50:41,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 09:50:41,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 09:50:41,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 09:50:41,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 09:50:41,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 09:50:41,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 09:50:41,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 09:50:41,352 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 09:50:41,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 09:50:41,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 09:50:41,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 09:50:41,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 09:50:41,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 09:50:41,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 09:50:41,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 09:50:41,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 09:50:41,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 09:50:41,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 09:50:41,377 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-16 09:50:41,377 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-16 09:50:41,378 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-16 09:50:41,378 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-16 09:50:41,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-16 09:50:41,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-16 09:50:41,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-16 09:50:41,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-16 09:50:41,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 09:50:41,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 09:50:41,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 09:50:41,400 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-MCRwithDepranks-Lazy-NoForkJoinOpt.epf [2022-03-16 09:50:41,428 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 09:50:41,428 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 09:50:41,428 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 09:50:41,428 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 09:50:41,429 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 09:50:41,429 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 09:50:41,429 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 09:50:41,429 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 09:50:41,430 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 09:50:41,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 09:50:41,430 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 09:50:41,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 09:50:41,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 09:50:41,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 09:50:41,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 09:50:41,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 09:50:41,430 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 09:50:41,430 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 09:50:41,430 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 09:50:41,431 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 09:50:41,431 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 09:50:41,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 09:50:41,431 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 09:50:41,431 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 09:50:41,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 09:50:41,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 09:50:41,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 09:50:41,431 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 09:50:41,431 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 09:50:41,431 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 09:50:41,431 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 09:50:41,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 09:50:41,432 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 09:50:41,432 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 09:50:41,432 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 09:50:41,432 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-16 09:50:41,432 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-16 09:50:41,432 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 09:50:41,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 09:50:41,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 09:50:41,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 09:50:41,703 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-16 09:50:41,715 INFO L275 PluginConnector]: CDTParser initialized [2022-03-16 09:50:41,716 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-hard1.wvr.c [2022-03-16 09:50:41,777 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df4e52efc/e7c813e5a3ae41c3a8b145abf8ff4b66/FLAG9279db6ba [2022-03-16 09:50:42,290 INFO L306 CDTParser]: Found 1 translation units. [2022-03-16 09:50:42,290 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-hard1.wvr.c [2022-03-16 09:50:42,316 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df4e52efc/e7c813e5a3ae41c3a8b145abf8ff4b66/FLAG9279db6ba [2022-03-16 09:50:42,758 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df4e52efc/e7c813e5a3ae41c3a8b145abf8ff4b66 [2022-03-16 09:50:42,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 09:50:42,761 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-16 09:50:42,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-16 09:50:42,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-16 09:50:42,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-16 09:50:42,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 09:50:42" (1/1) ... [2022-03-16 09:50:42,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4332ea17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:50:42, skipping insertion in model container [2022-03-16 09:50:42,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 09:50:42" (1/1) ... [2022-03-16 09:50:42,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-16 09:50:42,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-16 09:50:43,066 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/test-hard1.wvr.c[3373,3386] [2022-03-16 09:50:43,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-16 09:50:43,085 INFO L203 MainTranslator]: Completed pre-run [2022-03-16 09:50:43,133 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/test-hard1.wvr.c[3373,3386] [2022-03-16 09:50:43,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-16 09:50:43,142 INFO L208 MainTranslator]: Completed translation [2022-03-16 09:50:43,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:50:43 WrapperNode [2022-03-16 09:50:43,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-16 09:50:43,143 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 09:50:43,153 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 09:50:43,154 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 09:50:43,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:50:43" (1/1) ... [2022-03-16 09:50:43,182 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:50:43" (1/1) ... [2022-03-16 09:50:43,216 INFO L137 Inliner]: procedures = 24, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 93 [2022-03-16 09:50:43,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 09:50:43,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 09:50:43,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 09:50:43,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 09:50:43,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:50:43" (1/1) ... [2022-03-16 09:50:43,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:50:43" (1/1) ... [2022-03-16 09:50:43,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:50:43" (1/1) ... [2022-03-16 09:50:43,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:50:43" (1/1) ... [2022-03-16 09:50:43,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:50:43" (1/1) ... [2022-03-16 09:50:43,244 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:50:43" (1/1) ... [2022-03-16 09:50:43,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:50:43" (1/1) ... [2022-03-16 09:50:43,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 09:50:43,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 09:50:43,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 09:50:43,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 09:50:43,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:50:43" (1/1) ... [2022-03-16 09:50:43,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 09:50:43,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:50:43,278 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) [2022-03-16 09:50:43,297 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 [2022-03-16 09:50:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-16 09:50:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 09:50:43,311 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 09:50:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 09:50:43,311 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 09:50:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-16 09:50:43,311 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-16 09:50:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-16 09:50:43,311 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-16 09:50:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-16 09:50:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-16 09:50:43,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-16 09:50:43,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-16 09:50:43,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-16 09:50:43,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 09:50:43,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 09:50:43,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-16 09:50:43,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-16 09:50:43,313 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-16 09:50:43,383 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 09:50:43,384 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 09:50:43,642 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 09:50:43,675 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 09:50:43,676 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-03-16 09:50:43,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 09:50:43 BoogieIcfgContainer [2022-03-16 09:50:43,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 09:50:43,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 09:50:43,678 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 09:50:43,680 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 09:50:43,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 09:50:42" (1/3) ... [2022-03-16 09:50:43,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46218e8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 09:50:43, skipping insertion in model container [2022-03-16 09:50:43,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 09:50:43" (2/3) ... [2022-03-16 09:50:43,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46218e8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 09:50:43, skipping insertion in model container [2022-03-16 09:50:43,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 09:50:43" (3/3) ... [2022-03-16 09:50:43,682 INFO L111 eAbstractionObserver]: Analyzing ICFG test-hard1.wvr.c [2022-03-16 09:50:43,685 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 09:50:43,685 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 09:50:43,685 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 09:50:43,685 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 09:50:43,711 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,711 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,711 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,711 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,712 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,712 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,719 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,719 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,719 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,719 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,719 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,719 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,720 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,720 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,720 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,720 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,721 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,721 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,721 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,721 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,721 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,722 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,722 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,722 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,722 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,722 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,723 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,723 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,723 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,723 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,723 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,724 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,724 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,724 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,724 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,724 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,724 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,725 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,725 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,725 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,725 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,725 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,726 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,726 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,726 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,726 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,726 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,727 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,727 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,727 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,727 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,727 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,727 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,727 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,728 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,728 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,733 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,733 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,734 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,734 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,735 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,735 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,735 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,735 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,736 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,736 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,736 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,736 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,737 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,737 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 09:50:43,741 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-16 09:50:43,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 09:50:43,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:50:43,790 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-16 09:50:43,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-16 09:50:43,816 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 09:50:43,820 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=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, 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, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=true [2022-03-16 09:50:43,821 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-16 09:50:43,885 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 194 transitions and produced 195 states. [2022-03-16 09:50:43,887 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)] === [2022-03-16 09:50:43,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:50:43,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1063615113, now seen corresponding path program 1 times [2022-03-16 09:50:43,903 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:50:43,907 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680789257] [2022-03-16 09:50:43,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:50:43,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:50:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:50:44,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:50:44,109 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:50:44,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680789257] [2022-03-16 09:50:44,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680789257] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 09:50:44,110 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 09:50:44,110 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-16 09:50:44,113 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475723619] [2022-03-16 09:50:44,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 09:50:44,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-16 09:50:44,128 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:50:44,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-16 09:50:44,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-16 09:50:44,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:44,150 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:50:44,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 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) [2022-03-16 09:50:44,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:44,175 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 194 transitions and produced 195 states. [2022-03-16 09:50:44,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:44,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-16 09:50:44,176 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)] === [2022-03-16 09:50:44,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:50:44,177 INFO L85 PathProgramCache]: Analyzing trace with hash 282936737, now seen corresponding path program 1 times [2022-03-16 09:50:44,177 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:50:44,177 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000829763] [2022-03-16 09:50:44,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:50:44,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:50:44,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:50:44,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:50:44,531 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:50:44,532 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000829763] [2022-03-16 09:50:44,532 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000829763] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 09:50:44,532 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 09:50:44,532 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-16 09:50:44,532 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563092536] [2022-03-16 09:50:44,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 09:50:44,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-16 09:50:44,533 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:50:44,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-16 09:50:44,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-03-16 09:50:44,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:44,535 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:50:44,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 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) [2022-03-16 09:50:44,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:44,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:44,658 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 258 transitions and produced 241 states. [2022-03-16 09:50:44,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:44,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:50:44,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-16 09:50:44,659 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)] === [2022-03-16 09:50:44,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:50:44,660 INFO L85 PathProgramCache]: Analyzing trace with hash 947391498, now seen corresponding path program 1 times [2022-03-16 09:50:44,660 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:50:44,660 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545919373] [2022-03-16 09:50:44,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:50:44,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:50:44,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:50:44,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:50:44,792 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:50:44,792 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545919373] [2022-03-16 09:50:44,792 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545919373] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 09:50:44,793 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 09:50:44,793 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-16 09:50:44,793 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673141960] [2022-03-16 09:50:44,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 09:50:44,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-16 09:50:44,793 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:50:44,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-16 09:50:44,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-16 09:50:44,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:44,794 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:50:44,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 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) [2022-03-16 09:50:44,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:44,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:50:44,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:44,890 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 532 transitions and produced 339 states. [2022-03-16 09:50:44,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:44,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:50:44,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:50:44,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-16 09:50:44,891 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)] === [2022-03-16 09:50:44,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:50:44,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1304201718, now seen corresponding path program 1 times [2022-03-16 09:50:44,891 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:50:44,891 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893195394] [2022-03-16 09:50:44,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:50:44,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:50:44,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:50:45,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:50:45,044 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:50:45,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893195394] [2022-03-16 09:50:45,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893195394] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 09:50:45,044 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 09:50:45,044 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-16 09:50:45,044 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188783424] [2022-03-16 09:50:45,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 09:50:45,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-16 09:50:45,045 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:50:45,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-16 09:50:45,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-03-16 09:50:45,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:45,046 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:50:45,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 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) [2022-03-16 09:50:45,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:45,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:50:45,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:50:45,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:45,220 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1464 transitions and produced 539 states. [2022-03-16 09:50:45,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:45,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:50:45,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:50:45,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:50:45,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-16 09:50:45,221 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)] === [2022-03-16 09:50:45,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:50:45,223 INFO L85 PathProgramCache]: Analyzing trace with hash -292933742, now seen corresponding path program 2 times [2022-03-16 09:50:45,223 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:50:45,223 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166759379] [2022-03-16 09:50:45,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:50:45,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:50:45,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:50:45,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:50:45,488 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:50:45,489 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166759379] [2022-03-16 09:50:45,489 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166759379] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 09:50:45,489 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 09:50:45,489 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-16 09:50:45,489 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977424290] [2022-03-16 09:50:45,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 09:50:45,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-16 09:50:45,489 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:50:45,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-16 09:50:45,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-03-16 09:50:45,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:45,490 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:50:45,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 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) [2022-03-16 09:50:45,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:45,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:50:45,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:50:45,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:50:45,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:45,730 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1650 transitions and produced 643 states. [2022-03-16 09:50:45,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:45,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:50:45,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:50:45,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:50:45,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 09:50:45,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-16 09:50:45,731 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)] === [2022-03-16 09:50:45,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:50:45,731 INFO L85 PathProgramCache]: Analyzing trace with hash 608821258, now seen corresponding path program 1 times [2022-03-16 09:50:45,731 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:50:45,731 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649846603] [2022-03-16 09:50:45,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:50:45,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:50:45,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:50:45,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:50:45,795 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:50:45,795 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649846603] [2022-03-16 09:50:45,795 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649846603] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 09:50:45,796 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 09:50:45,796 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-16 09:50:45,796 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973530309] [2022-03-16 09:50:45,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 09:50:45,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-16 09:50:45,796 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:50:45,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-16 09:50:45,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-16 09:50:45,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:45,797 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:50:45,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 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) [2022-03-16 09:50:45,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:45,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:50:45,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:50:45,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:50:45,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 09:50:45,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:46,036 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3840 transitions and produced 1253 states. [2022-03-16 09:50:46,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:46,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:50:46,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:50:46,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 09:50:46,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:50:46,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:50:46,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-16 09:50:46,037 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)] === [2022-03-16 09:50:46,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:50:46,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1252610815, now seen corresponding path program 1 times [2022-03-16 09:50:46,037 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:50:46,038 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297319147] [2022-03-16 09:50:46,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:50:46,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:50:46,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:50:46,334 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:50:46,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:50:46,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297319147] [2022-03-16 09:50:46,334 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297319147] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:50:46,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528699824] [2022-03-16 09:50:46,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:50:46,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:50:46,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:50:46,348 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) [2022-03-16 09:50:46,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-16 09:50:46,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:50:46,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 12 conjunts are in the unsatisfiable core [2022-03-16 09:50:46,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:50:48,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:50:48,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:50:49,573 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:50:49,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528699824] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:50:49,574 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:50:49,574 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 19 [2022-03-16 09:50:49,574 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056762297] [2022-03-16 09:50:49,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:50:49,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-16 09:50:49,575 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:50:49,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-16 09:50:49,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2022-03-16 09:50:49,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:49,577 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:50:49,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.526315789473685) internal successors, (181), 19 states have internal predecessors, (181), 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) [2022-03-16 09:50:49,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:49,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:50:49,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:50:49,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 09:50:49,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:50:49,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:50:49,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:50,454 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4180 transitions and produced 1399 states. [2022-03-16 09:50:50,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:50,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:50:50,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:50:50,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 09:50:50,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:50:50,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:50:50,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-16 09:50:50,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-16 09:50:50,671 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,SelfDestructingSolverStorable6 [2022-03-16 09:50:50,672 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)] === [2022-03-16 09:50:50,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:50:50,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1104653654, now seen corresponding path program 2 times [2022-03-16 09:50:50,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:50:50,673 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795136265] [2022-03-16 09:50:50,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:50:50,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:50:50,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:50:50,861 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:50:50,861 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:50:50,861 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795136265] [2022-03-16 09:50:50,861 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795136265] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:50:50,862 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608901384] [2022-03-16 09:50:50,862 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 09:50:50,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:50:50,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:50:50,876 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) [2022-03-16 09:50:50,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-16 09:50:50,970 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 09:50:50,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 09:50:50,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 17 conjunts are in the unsatisfiable core [2022-03-16 09:50:50,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:50:51,386 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:50:51,387 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:50:51,968 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:50:51,968 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608901384] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:50:51,968 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:50:51,968 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 13] total 31 [2022-03-16 09:50:51,969 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413181823] [2022-03-16 09:50:51,969 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:50:51,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-03-16 09:50:51,970 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:50:51,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-03-16 09:50:51,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=768, Unknown=0, NotChecked=0, Total=930 [2022-03-16 09:50:51,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:51,971 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:50:51,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 6.483870967741935) internal successors, (201), 31 states have internal predecessors, (201), 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) [2022-03-16 09:50:51,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:51,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:50:51,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:50:51,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 09:50:51,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:50:51,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:50:51,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-03-16 09:50:51,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:53,145 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5111 transitions and produced 1598 states. [2022-03-16 09:50:53,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:53,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:50:53,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:50:53,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 09:50:53,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:50:53,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:50:53,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-16 09:50:53,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:50:53,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-16 09:50:53,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:50:53,346 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)] === [2022-03-16 09:50:53,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:50:53,347 INFO L85 PathProgramCache]: Analyzing trace with hash -432991612, now seen corresponding path program 1 times [2022-03-16 09:50:53,347 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:50:53,347 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312578308] [2022-03-16 09:50:53,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:50:53,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:50:53,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:50:53,600 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:50:53,601 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:50:53,601 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312578308] [2022-03-16 09:50:53,601 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312578308] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:50:53,601 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188722563] [2022-03-16 09:50:53,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:50:53,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:50:53,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:50:53,609 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) [2022-03-16 09:50:53,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-16 09:50:53,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:50:53,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 24 conjunts are in the unsatisfiable core [2022-03-16 09:50:53,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:50:56,298 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:50:56,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:50:56,947 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:50:56,947 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188722563] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:50:56,947 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:50:56,947 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12, 14] total 35 [2022-03-16 09:50:56,947 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943326237] [2022-03-16 09:50:56,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:50:56,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-03-16 09:50:56,948 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:50:56,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-03-16 09:50:56,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=983, Unknown=0, NotChecked=0, Total=1190 [2022-03-16 09:50:56,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:56,949 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:50:56,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 5.857142857142857) internal successors, (205), 35 states have internal predecessors, (205), 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) [2022-03-16 09:50:56,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:50:56,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:50:56,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:50:56,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 09:50:56,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:50:56,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:50:56,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-03-16 09:50:56,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:50:56,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:51:01,507 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4472 transitions and produced 1483 states. [2022-03-16 09:51:01,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:51:01,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:51:01,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:51:01,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 09:51:01,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:51:01,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:51:01,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-16 09:51:01,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:51:01,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-16 09:51:01,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-16 09:51:01,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:51:01,708 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)] === [2022-03-16 09:51:01,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:51:01,708 INFO L85 PathProgramCache]: Analyzing trace with hash 690152862, now seen corresponding path program 2 times [2022-03-16 09:51:01,709 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:51:01,709 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798153176] [2022-03-16 09:51:01,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:51:01,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:51:01,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:51:02,085 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:51:02,085 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:51:02,085 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798153176] [2022-03-16 09:51:02,085 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798153176] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:51:02,086 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466330567] [2022-03-16 09:51:02,086 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 09:51:02,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:51:02,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:51:02,096 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) [2022-03-16 09:51:02,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-16 09:51:02,512 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 09:51:02,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 09:51:02,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 19 conjunts are in the unsatisfiable core [2022-03-16 09:51:02,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:51:05,444 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:51:05,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:51:06,743 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:51:06,743 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466330567] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:51:06,743 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:51:06,743 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 31 [2022-03-16 09:51:06,743 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891600583] [2022-03-16 09:51:06,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:51:06,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-03-16 09:51:06,744 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:51:06,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-03-16 09:51:06,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=771, Unknown=0, NotChecked=0, Total=930 [2022-03-16 09:51:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:51:06,745 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:51:06,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 6.709677419354839) internal successors, (208), 31 states have internal predecessors, (208), 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) [2022-03-16 09:51:06,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:51:06,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:51:06,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:51:06,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 09:51:06,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:51:06,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:51:06,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-03-16 09:51:06,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:51:06,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-03-16 09:51:06,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:51:10,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:51:10,606 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5219 transitions and produced 1719 states. [2022-03-16 09:51:10,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:51:10,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:51:10,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:51:10,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 09:51:10,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:51:10,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:51:10,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-16 09:51:10,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:51:10,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-16 09:51:10,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:51:10,626 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-16 09:51:10,807 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,SelfDestructingSolverStorable9 [2022-03-16 09:51:10,807 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)] === [2022-03-16 09:51:10,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:51:10,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1816618974, now seen corresponding path program 3 times [2022-03-16 09:51:10,808 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:51:10,808 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55745816] [2022-03-16 09:51:10,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:51:10,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:51:10,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:51:11,261 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:51:11,261 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:51:11,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55745816] [2022-03-16 09:51:11,262 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55745816] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:51:11,262 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041479791] [2022-03-16 09:51:11,262 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 09:51:11,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:51:11,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:51:11,263 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) [2022-03-16 09:51:11,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-16 09:51:11,635 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-03-16 09:51:11,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 09:51:11,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-16 09:51:11,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:51:12,784 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:51:12,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:51:16,588 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:51:16,589 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041479791] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:51:16,589 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:51:16,589 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 14] total 36 [2022-03-16 09:51:16,608 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872068966] [2022-03-16 09:51:16,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:51:16,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-03-16 09:51:16,609 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:51:16,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-03-16 09:51:16,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1068, Unknown=0, NotChecked=0, Total=1260 [2022-03-16 09:51:16,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:51:16,609 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:51:16,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 5.583333333333333) internal successors, (201), 36 states have internal predecessors, (201), 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) [2022-03-16 09:51:16,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:51:16,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:51:16,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:51:16,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 09:51:16,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:51:16,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:51:16,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-03-16 09:51:16,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:51:16,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-03-16 09:51:16,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-16 09:51:16,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:51:30,075 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 84579 transitions and produced 23669 states. [2022-03-16 09:51:30,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:51:30,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:51:30,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:51:30,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 09:51:30,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:51:30,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:51:30,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-16 09:51:30,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-16 09:51:30,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-16 09:51:30,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-16 09:51:30,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-16 09:51:30,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-16 09:51:30,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:51:30,285 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)] === [2022-03-16 09:51:30,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:51:30,285 INFO L85 PathProgramCache]: Analyzing trace with hash -2120338335, now seen corresponding path program 3 times [2022-03-16 09:51:30,285 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:51:30,286 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708054398] [2022-03-16 09:51:30,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:51:30,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:51:30,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:51:30,822 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:51:30,822 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:51:30,823 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708054398] [2022-03-16 09:51:30,823 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708054398] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:51:30,823 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418663437] [2022-03-16 09:51:30,823 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 09:51:30,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:51:30,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:51:30,830 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) [2022-03-16 09:51:30,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-16 09:51:31,052 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-03-16 09:51:31,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 09:51:31,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 28 conjunts are in the unsatisfiable core [2022-03-16 09:51:31,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:51:32,198 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:51:32,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:51:37,363 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:51:37,364 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418663437] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:51:37,364 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:51:37,364 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 18] total 44 [2022-03-16 09:51:37,364 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526809541] [2022-03-16 09:51:37,364 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:51:37,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-03-16 09:51:37,365 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:51:37,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-03-16 09:51:37,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=292, Invalid=1600, Unknown=0, NotChecked=0, Total=1892 [2022-03-16 09:51:37,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:51:37,366 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:51:37,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 4.7727272727272725) internal successors, (210), 44 states have internal predecessors, (210), 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) [2022-03-16 09:51:37,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:51:37,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:51:37,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:51:37,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 09:51:37,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:51:37,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:51:37,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-03-16 09:51:37,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-16 09:51:37,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2022-03-16 09:51:37,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-03-16 09:51:37,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-16 09:51:37,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:51:59,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:52:01,683 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:52:12,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:52:14,768 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:52:16,018 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 85155 transitions and produced 23931 states. [2022-03-16 09:52:16,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:52:16,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:52:16,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:52:16,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 09:52:16,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:52:16,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:52:16,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-16 09:52:16,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-16 09:52:16,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-16 09:52:16,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-16 09:52:16,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-16 09:52:16,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:52:16,053 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-03-16 09:52:16,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:52:16,243 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)] === [2022-03-16 09:52:16,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:52:16,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1293412292, now seen corresponding path program 4 times [2022-03-16 09:52:16,244 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:52:16,244 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118358291] [2022-03-16 09:52:16,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:52:16,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:52:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:52:16,584 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 8 proven. 17 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-16 09:52:16,584 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:52:16,584 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118358291] [2022-03-16 09:52:16,584 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118358291] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:52:16,584 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762654992] [2022-03-16 09:52:16,585 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 09:52:16,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:52:16,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:52:16,588 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) [2022-03-16 09:52:16,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-16 09:52:16,670 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 09:52:16,670 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 09:52:16,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-16 09:52:16,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:52:19,560 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-16 09:52:19,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:52:20,799 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:52:20,799 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762654992] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:52:20,799 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:52:20,800 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 12, 17] total 41 [2022-03-16 09:52:20,800 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854192864] [2022-03-16 09:52:20,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:52:20,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-03-16 09:52:20,800 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:52:20,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-03-16 09:52:20,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=1416, Unknown=0, NotChecked=0, Total=1640 [2022-03-16 09:52:20,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:52:20,801 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:52:20,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 5.7560975609756095) internal successors, (236), 41 states have internal predecessors, (236), 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) [2022-03-16 09:52:20,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:52:20,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:52:20,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:52:20,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 09:52:20,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:52:20,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:52:20,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-03-16 09:52:20,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-03-16 09:52:20,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-03-16 09:52:20,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-03-16 09:52:20,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-16 09:52:20,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:52:20,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:52:36,215 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:52:36,349 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 85683 transitions and produced 23957 states. [2022-03-16 09:52:36,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:52:36,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:52:36,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:52:36,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 09:52:36,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:52:36,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:52:36,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-16 09:52:36,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-16 09:52:36,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-16 09:52:36,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-16 09:52:36,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-16 09:52:36,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:52:36,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-16 09:52:36,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-16 09:52:36,571 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,SelfDestructingSolverStorable12 [2022-03-16 09:52:36,574 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)] === [2022-03-16 09:52:36,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:52:36,575 INFO L85 PathProgramCache]: Analyzing trace with hash 504614692, now seen corresponding path program 5 times [2022-03-16 09:52:36,575 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:52:36,575 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566693939] [2022-03-16 09:52:36,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:52:36,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:52:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:52:36,877 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:52:36,877 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:52:36,877 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566693939] [2022-03-16 09:52:36,877 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566693939] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:52:36,877 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285223368] [2022-03-16 09:52:36,878 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 09:52:36,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:52:36,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:52:36,882 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) [2022-03-16 09:52:36,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-16 09:52:36,958 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-03-16 09:52:36,959 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 09:52:36,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 24 conjunts are in the unsatisfiable core [2022-03-16 09:52:36,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:52:37,605 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:52:37,605 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:52:38,153 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:52:38,154 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [285223368] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:52:38,154 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:52:38,154 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17, 16] total 46 [2022-03-16 09:52:38,154 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792392141] [2022-03-16 09:52:38,155 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:52:38,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-03-16 09:52:38,155 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:52:38,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-03-16 09:52:38,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=369, Invalid=1701, Unknown=0, NotChecked=0, Total=2070 [2022-03-16 09:52:38,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:52:38,157 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:52:38,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 4.6521739130434785) internal successors, (214), 46 states have internal predecessors, (214), 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) [2022-03-16 09:52:38,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:52:38,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:52:38,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:52:38,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 09:52:38,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:52:38,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:52:38,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-03-16 09:52:38,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-03-16 09:52:38,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-03-16 09:52:38,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-03-16 09:52:38,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-16 09:52:38,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:52:38,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-03-16 09:52:38,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:52:41,449 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 85044 transitions and produced 23842 states. [2022-03-16 09:52:41,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:52:41,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:52:41,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:52:41,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 09:52:41,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:52:41,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:52:41,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-16 09:52:41,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-16 09:52:41,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-03-16 09:52:41,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-16 09:52:41,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-16 09:52:41,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:52:41,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-16 09:52:41,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-16 09:52:41,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-16 09:52:41,666 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,SelfDestructingSolverStorable13 [2022-03-16 09:52:41,667 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)] === [2022-03-16 09:52:41,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:52:41,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1627759166, now seen corresponding path program 6 times [2022-03-16 09:52:41,667 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:52:41,667 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585577307] [2022-03-16 09:52:41,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:52:41,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:52:41,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:52:42,382 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:52:42,382 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:52:42,382 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585577307] [2022-03-16 09:52:42,383 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585577307] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:52:42,383 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443376773] [2022-03-16 09:52:42,383 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 09:52:42,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:52:42,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:52:42,384 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) [2022-03-16 09:52:42,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-16 09:52:42,792 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-03-16 09:52:42,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 09:52:42,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 21 conjunts are in the unsatisfiable core [2022-03-16 09:52:42,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:52:44,431 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:52:44,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:53:07,037 WARN L228 SmtUtils]: Spent 15.14s on a formula simplification. DAG size of input: 96 DAG size of output: 37 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-16 09:53:07,930 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:53:07,931 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443376773] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:53:07,931 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:53:07,931 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 37 [2022-03-16 09:53:07,931 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442507897] [2022-03-16 09:53:07,932 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:53:07,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-03-16 09:53:07,932 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:53:07,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-03-16 09:53:07,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=1169, Unknown=0, NotChecked=0, Total=1332 [2022-03-16 09:53:07,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:53:07,933 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:53:07,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 6.108108108108108) internal successors, (226), 37 states have internal predecessors, (226), 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) [2022-03-16 09:53:07,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:53:07,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:53:07,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:53:07,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 09:53:07,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:53:07,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:53:07,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-03-16 09:53:07,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-03-16 09:53:07,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-03-16 09:53:07,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-03-16 09:53:07,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-16 09:53:07,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-03-16 09:53:07,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-03-16 09:53:07,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-03-16 09:53:07,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:53:20,169 WARN L228 SmtUtils]: Spent 7.12s on a formula simplification. DAG size of input: 105 DAG size of output: 76 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-16 09:53:28,298 WARN L228 SmtUtils]: Spent 7.05s on a formula simplification. DAG size of input: 88 DAG size of output: 49 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-16 09:54:02,798 WARN L228 SmtUtils]: Spent 32.05s on a formula simplification. DAG size of input: 96 DAG size of output: 66 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-16 09:54:16,741 WARN L228 SmtUtils]: Spent 7.16s on a formula simplification. DAG size of input: 96 DAG size of output: 40 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-16 09:54:31,658 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 223632 transitions and produced 61761 states. [2022-03-16 09:54:31,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:54:31,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:54:31,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:54:31,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 09:54:31,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:54:31,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:54:31,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-16 09:54:31,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-16 09:54:31,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-03-16 09:54:31,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-16 09:54:31,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-16 09:54:31,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-16 09:54:31,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-16 09:54:31,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-16 09:54:31,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-16 09:54:31,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-03-16 09:54:31,864 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,SelfDestructingSolverStorable14 [2022-03-16 09:54:31,865 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)] === [2022-03-16 09:54:31,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:54:31,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1956897610, now seen corresponding path program 4 times [2022-03-16 09:54:31,865 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:54:31,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221118568] [2022-03-16 09:54:31,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:54:31,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:54:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:54:32,225 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:54:32,225 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:54:32,226 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221118568] [2022-03-16 09:54:32,226 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221118568] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:54:32,226 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420275042] [2022-03-16 09:54:32,226 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 09:54:32,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:54:32,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:54:32,252 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) [2022-03-16 09:54:32,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-16 09:54:32,355 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 09:54:32,355 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 09:54:32,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 29 conjunts are in the unsatisfiable core [2022-03-16 09:54:32,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:54:32,962 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:54:32,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:54:33,878 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:54:33,878 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420275042] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:54:33,879 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:54:33,879 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 48 [2022-03-16 09:54:33,879 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51205811] [2022-03-16 09:54:33,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:54:33,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-03-16 09:54:33,879 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:54:33,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-03-16 09:54:33,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=1850, Unknown=0, NotChecked=0, Total=2256 [2022-03-16 09:54:33,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:54:33,880 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:54:33,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 4.791666666666667) internal successors, (230), 48 states have internal predecessors, (230), 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) [2022-03-16 09:54:33,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:54:33,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:54:33,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:54:33,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 09:54:33,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:54:33,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:54:33,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-03-16 09:54:33,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-03-16 09:54:33,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-03-16 09:54:33,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-03-16 09:54:33,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-16 09:54:33,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-16 09:54:33,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-03-16 09:54:33,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2022-03-16 09:54:33,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-03-16 09:54:33,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:54:42,581 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 226416 transitions and produced 62398 states. [2022-03-16 09:54:42,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:54:42,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:54:42,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:54:42,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 09:54:42,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:54:42,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:54:42,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-16 09:54:42,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-16 09:54:42,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-03-16 09:54:42,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-16 09:54:42,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-16 09:54:42,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-16 09:54:42,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-16 09:54:42,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-16 09:54:42,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-16 09:54:42,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2022-03-16 09:54:42,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-16 09:54:42,786 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,SelfDestructingSolverStorable15 [2022-03-16 09:54:42,786 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)] === [2022-03-16 09:54:42,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 09:54:42,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1201108031, now seen corresponding path program 5 times [2022-03-16 09:54:42,787 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 09:54:42,787 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871600255] [2022-03-16 09:54:42,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 09:54:42,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 09:54:42,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 09:54:43,507 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:54:43,507 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 09:54:43,507 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871600255] [2022-03-16 09:54:43,507 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871600255] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 09:54:43,507 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112515823] [2022-03-16 09:54:43,507 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 09:54:43,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 09:54:43,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 09:54:43,508 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) [2022-03-16 09:54:43,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-16 09:54:43,877 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-03-16 09:54:43,877 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 09:54:43,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-16 09:54:43,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 09:54:44,970 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:54:44,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 09:55:00,663 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 09:55:00,663 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112515823] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 09:55:00,663 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 09:55:00,664 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 18, 18] total 47 [2022-03-16 09:55:00,664 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589917505] [2022-03-16 09:55:00,664 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 09:55:00,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-03-16 09:55:00,664 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 09:55:00,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-03-16 09:55:00,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=1923, Unknown=0, NotChecked=0, Total=2162 [2022-03-16 09:55:00,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:55:00,665 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 09:55:00,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 4.829787234042553) internal successors, (227), 47 states have internal predecessors, (227), 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) [2022-03-16 09:55:00,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:55:00,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 09:55:00,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:55:00,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 09:55:00,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 09:55:00,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 09:55:00,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-03-16 09:55:00,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-03-16 09:55:00,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-03-16 09:55:00,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-03-16 09:55:00,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-16 09:55:00,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-16 09:55:00,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-03-16 09:55:00,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2022-03-16 09:55:00,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-03-16 09:55:00,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 110 states. [2022-03-16 09:55:00,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 09:55:45,912 WARN L228 SmtUtils]: Spent 24.45s on a formula simplification. DAG size of input: 124 DAG size of output: 71 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-16 09:55:55,966 WARN L228 SmtUtils]: Spent 5.76s on a formula simplification. DAG size of input: 122 DAG size of output: 46 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-16 09:55:58,049 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:56:20,619 WARN L228 SmtUtils]: Spent 6.35s on a formula simplification. DAG size of input: 78 DAG size of output: 39 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-16 09:56:23,090 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:57:23,606 WARN L228 SmtUtils]: Spent 15.68s on a formula simplification. DAG size of input: 100 DAG size of output: 41 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-16 09:57:25,685 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:57:27,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:57:29,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:57:32,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:57:34,676 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:57:36,702 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:57:39,048 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:57:40,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:57:42,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:57:44,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:57:46,867 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:57:48,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:57:56,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:57:59,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:58:01,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:58:03,525 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:58:06,257 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:58:08,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-16 09:58:15,095 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:58:17,323 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:58:19,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:58:21,938 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:58:23,946 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:58:25,956 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:58:27,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:58:46,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:58:48,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:58:50,519 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:58:58,170 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:59:07,867 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:59:13,816 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:59:15,073 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:59:32,513 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:59:34,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:59:37,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 09:59:51,065 WARN L228 SmtUtils]: Spent 6.12s on a formula simplification. DAG size of input: 55 DAG size of output: 44 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-16 09:59:53,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 10:00:42,663 WARN L228 SmtUtils]: Spent 41.36s on a formula simplification. DAG size of input: 77 DAG size of output: 75 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-16 10:00:58,889 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 10:01:11,147 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 10:01:13,955 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 10:01:16,234 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 10:01:18,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 10:01:28,370 WARN L228 SmtUtils]: Spent 6.14s on a formula simplification. DAG size of input: 84 DAG size of output: 37 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-16 10:01:53,269 WARN L228 SmtUtils]: Spent 11.29s on a formula simplification. DAG size of input: 80 DAG size of output: 39 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-16 10:01:59,969 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 10:02:04,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 10:02:10,612 WARN L228 SmtUtils]: Spent 6.17s on a formula simplification. DAG size of input: 82 DAG size of output: 49 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-16 10:02:26,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 10:02:26,550 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 168103 transitions and produced 47187 states. [2022-03-16 10:02:26,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 10:02:26,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 10:02:26,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 10:02:26,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 10:02:26,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 10:02:26,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 10:02:26,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-16 10:02:26,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-16 10:02:26,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-03-16 10:02:26,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-16 10:02:26,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-16 10:02:26,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-16 10:02:26,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-16 10:02:26,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-16 10:02:26,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-16 10:02:26,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-03-16 10:02:26,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-03-16 10:02:26,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-03-16 10:02:26,751 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,SelfDestructingSolverStorable16 [2022-03-16 10:02:26,752 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)] === [2022-03-16 10:02:26,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 10:02:26,752 INFO L85 PathProgramCache]: Analyzing trace with hash -2105467766, now seen corresponding path program 6 times [2022-03-16 10:02:26,752 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 10:02:26,752 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002583510] [2022-03-16 10:02:26,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 10:02:26,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 10:02:26,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 10:02:27,255 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 46 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-16 10:02:27,255 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 10:02:27,255 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002583510] [2022-03-16 10:02:27,255 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002583510] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 10:02:27,255 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035383475] [2022-03-16 10:02:27,255 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 10:02:27,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 10:02:27,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 10:02:27,257 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) [2022-03-16 10:02:27,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-03-16 10:02:27,372 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2022-03-16 10:02:27,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 10:02:27,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 34 conjunts are in the unsatisfiable core [2022-03-16 10:02:27,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 10:02:30,314 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 38 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-16 10:02:30,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 10:02:31,247 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 10:02:31,247 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035383475] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 10:02:31,247 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 10:02:31,247 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 20, 23] total 66 [2022-03-16 10:02:31,247 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46749715] [2022-03-16 10:02:31,247 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 10:02:31,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-03-16 10:02:31,248 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 10:02:31,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-03-16 10:02:31,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=711, Invalid=3579, Unknown=0, NotChecked=0, Total=4290 [2022-03-16 10:02:31,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 10:02:31,250 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 10:02:31,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 3.787878787878788) internal successors, (250), 66 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 10:02:31,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 10:02:31,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 10:02:31,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 10:02:31,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 10:02:31,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 10:02:31,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 10:02:31,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-03-16 10:02:31,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-03-16 10:02:31,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-03-16 10:02:31,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-03-16 10:02:31,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-16 10:02:31,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-16 10:02:31,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-03-16 10:02:31,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2022-03-16 10:02:31,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-03-16 10:02:31,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2022-03-16 10:02:31,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2022-03-16 10:02:31,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 10:02:41,134 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 264712 transitions and produced 71104 states. [2022-03-16 10:02:41,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 10:02:41,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 10:02:41,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 10:02:41,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 10:02:41,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 10:02:41,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 10:02:41,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-16 10:02:41,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-16 10:02:41,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-03-16 10:02:41,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-16 10:02:41,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-16 10:02:41,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-16 10:02:41,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-16 10:02:41,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-16 10:02:41,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-16 10:02:41,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-03-16 10:02:41,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-03-16 10:02:41,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-16 10:02:41,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-03-16 10:02:41,351 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,SelfDestructingSolverStorable17 [2022-03-16 10:02:41,352 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)] === [2022-03-16 10:02:41,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 10:02:41,352 INFO L85 PathProgramCache]: Analyzing trace with hash 583121860, now seen corresponding path program 7 times [2022-03-16 10:02:41,352 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 10:02:41,352 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138305861] [2022-03-16 10:02:41,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 10:02:41,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 10:02:41,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 10:02:41,733 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 8 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 10:02:41,733 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 10:02:41,733 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138305861] [2022-03-16 10:02:41,733 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138305861] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 10:02:41,734 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480813943] [2022-03-16 10:02:41,734 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-16 10:02:41,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 10:02:41,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 10:02:41,735 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) [2022-03-16 10:02:41,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-03-16 10:02:41,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 10:02:41,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 28 conjunts are in the unsatisfiable core [2022-03-16 10:02:41,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 10:02:42,760 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 10:02:42,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 10:02:43,573 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 10:02:43,573 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480813943] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 10:02:43,574 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 10:02:43,574 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 16, 18] total 53 [2022-03-16 10:02:43,574 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095481164] [2022-03-16 10:02:43,574 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 10:02:43,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-03-16 10:02:43,613 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 10:02:43,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-03-16 10:02:43,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=456, Invalid=2300, Unknown=0, NotChecked=0, Total=2756 [2022-03-16 10:02:43,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 10:02:43,614 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 10:02:43,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 4.547169811320755) internal successors, (241), 53 states have internal predecessors, (241), 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) [2022-03-16 10:02:43,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 10:02:43,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 10:02:43,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 10:02:43,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 10:02:43,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 10:02:43,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 10:02:43,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-03-16 10:02:43,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-03-16 10:02:43,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-03-16 10:02:43,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-03-16 10:02:43,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-16 10:02:43,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-16 10:02:43,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2022-03-16 10:02:43,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-16 10:02:43,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-03-16 10:02:43,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. [2022-03-16 10:02:43,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2022-03-16 10:02:43,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-03-16 10:02:43,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 10:03:00,036 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 264073 transitions and produced 70989 states. [2022-03-16 10:03:00,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 10:03:00,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-16 10:03:00,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 10:03:00,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 10:03:00,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-16 10:03:00,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 10:03:00,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-16 10:03:00,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-16 10:03:00,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-03-16 10:03:00,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-16 10:03:00,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-16 10:03:00,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-16 10:03:00,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-03-16 10:03:00,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-16 10:03:00,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-16 10:03:00,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-03-16 10:03:00,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-03-16 10:03:00,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-16 10:03:00,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2022-03-16 10:03:00,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-03-16 10:03:00,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 10:03:00,238 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)] === [2022-03-16 10:03:00,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 10:03:00,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1706266334, now seen corresponding path program 8 times [2022-03-16 10:03:00,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 10:03:00,239 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491691066] [2022-03-16 10:03:00,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 10:03:00,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 10:03:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 10:03:01,200 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 10:03:01,200 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 10:03:01,200 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491691066] [2022-03-16 10:03:01,200 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491691066] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 10:03:01,200 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417480431] [2022-03-16 10:03:01,200 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 10:03:01,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 10:03:01,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 10:03:01,202 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) [2022-03-16 10:03:01,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-03-16 10:03:01,519 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 10:03:01,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 10:03:01,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 31 conjunts are in the unsatisfiable core [2022-03-16 10:03:01,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 10:03:03,233 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 10:03:03,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 10:03:20,561 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 10:03:20,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417480431] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 10:03:20,561 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 10:03:20,561 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 21, 21] total 60 [2022-03-16 10:03:20,562 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010188066] [2022-03-16 10:03:20,562 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 10:03:20,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-03-16 10:03:20,562 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 10:03:20,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-03-16 10:03:20,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=425, Invalid=3115, Unknown=0, NotChecked=0, Total=3540 [2022-03-16 10:03:20,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 10:03:20,564 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 10:03:20,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 4.083333333333333) internal successors, (245), 60 states have internal predecessors, (245), 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) [2022-03-16 10:03:20,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 10:03:20,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-16 10:03:20,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 10:03:20,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 10:03:20,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-03-16 10:03:20,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 10:03:20,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-03-16 10:03:20,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-03-16 10:03:20,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2022-03-16 10:03:20,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-03-16 10:03:20,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-16 10:03:20,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-16 10:03:20,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2022-03-16 10:03:20,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-16 10:03:20,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-03-16 10:03:20,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-03-16 10:03:20,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2022-03-16 10:03:20,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-03-16 10:03:20,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 124 states. [2022-03-16 10:03:20,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 10:03:40,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 10:03:43,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-16 10:03:45,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Received shutdown request... [2022-03-16 10:04:30,010 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 [2022-03-16 10:04:30,024 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-16 10:04:30,025 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-16 10:04:31,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-03-16 10:04:31,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-03-16 10:04:31,211 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-03-16 10:04:31,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-16 10:04:31,219 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Not enough levels on assertion stack at de.uni_freiburg.informatik.ultimate.logic.NoopScript.pop(NoopScript.java:272) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:138) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.pop(UndoableWrapperScript.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.restore(UndoableWrapperScript.java:87) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:242) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:160) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:360) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.MaximalCausalityReduction.internalSuccessors(MaximalCausalityReduction.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.MaximalCausalityReduction.internalSuccessors(MaximalCausalityReduction.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.INwaOutgoingLetterAndTransitionProvider.lambda$0(INwaOutgoingLetterAndTransitionProvider.java:123) at de.uni_freiburg.informatik.ultimate.util.datastructures.relation.NestedIterator.nextLetter(NestedIterator.java:69) at de.uni_freiburg.informatik.ultimate.util.datastructures.relation.NestedIterator.(NestedIterator.java:62) at de.uni_freiburg.informatik.ultimate.util.datastructures.relation.NestedIteratorNoopConstruction.(NestedIteratorNoopConstruction.java:48) at de.uni_freiburg.informatik.ultimate.automata.nestedword.INwaOutgoingLetterAndTransitionProvider.lambda$1(INwaOutgoingLetterAndTransitionProvider.java:124) at java.base/java.lang.Iterable.spliterator(Iterable.java:101) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.visitState(DepthFirstTraversal.java:197) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.traverse(DepthFirstTraversal.java:127) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.(DepthFirstTraversal.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderReductionFacade.apply(PartialOrderReductionFacade.java:246) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isAbstractionEmpty(PartialOrderCegarLoop.java:161) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:440) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-03-16 10:04:31,225 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 [2022-03-16 10:04:31,233 INFO L158 Benchmark]: Toolchain (without parser) took 828472.14ms. Allocated memory was 183.5MB in the beginning and 2.4GB in the end (delta: 2.2GB). Free memory was 132.7MB in the beginning and 331.1MB in the end (delta: -198.4MB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2022-03-16 10:04:31,241 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 183.5MB. Free memory was 149.3MB in the beginning and 149.2MB in the end (delta: 69.5kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 10:04:31,241 INFO L158 Benchmark]: CACSL2BoogieTranslator took 375.81ms. Allocated memory was 183.5MB in the beginning and 221.2MB in the end (delta: 37.7MB). Free memory was 132.4MB in the beginning and 196.5MB in the end (delta: -64.1MB). Peak memory consumption was 9.8MB. Max. memory is 8.0GB. [2022-03-16 10:04:31,241 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.54ms. Allocated memory is still 221.2MB. Free memory was 196.5MB in the beginning and 194.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-16 10:04:31,241 INFO L158 Benchmark]: Boogie Preprocessor took 29.70ms. Allocated memory is still 221.2MB. Free memory was 194.5MB in the beginning and 193.4MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 10:04:31,242 INFO L158 Benchmark]: RCFGBuilder took 430.14ms. Allocated memory is still 221.2MB. Free memory was 192.9MB in the beginning and 176.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-03-16 10:04:31,242 INFO L158 Benchmark]: TraceAbstraction took 827554.15ms. Allocated memory was 221.2MB in the beginning and 2.4GB in the end (delta: 2.2GB). Free memory was 175.6MB in the beginning and 331.1MB in the end (delta: -155.6MB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2022-03-16 10:04:31,243 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 183.5MB. Free memory was 149.3MB in the beginning and 149.2MB in the end (delta: 69.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 375.81ms. Allocated memory was 183.5MB in the beginning and 221.2MB in the end (delta: 37.7MB). Free memory was 132.4MB in the beginning and 196.5MB in the end (delta: -64.1MB). Peak memory consumption was 9.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 73.54ms. Allocated memory is still 221.2MB. Free memory was 196.5MB in the beginning and 194.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.70ms. Allocated memory is still 221.2MB. Free memory was 194.5MB in the beginning and 193.4MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 430.14ms. Allocated memory is still 221.2MB. Free memory was 192.9MB in the beginning and 176.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 827554.15ms. Allocated memory was 221.2MB in the beginning and 2.4GB in the end (delta: 2.2GB). Free memory was 175.6MB in the beginning and 331.1MB in the end (delta: -155.6MB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Not enough levels on assertion stack de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Not enough levels on assertion stack: de.uni_freiburg.informatik.ultimate.logic.NoopScript.pop(NoopScript.java:272) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown