/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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-bakery-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-03 17:07:02,066 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-03 17:07:02,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-03 17:07:02,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-03 17:07:02,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-03 17:07:02,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-03 17:07:02,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-03 17:07:02,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-03 17:07:02,155 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-03 17:07:02,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-03 17:07:02,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-03 17:07:02,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-03 17:07:02,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-03 17:07:02,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-03 17:07:02,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-03 17:07:02,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-03 17:07:02,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-03 17:07:02,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-03 17:07:02,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-03 17:07:02,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-03 17:07:02,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-03 17:07:02,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-03 17:07:02,173 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-03 17:07:02,175 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-03 17:07:02,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-03 17:07:02,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-03 17:07:02,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-03 17:07:02,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-03 17:07:02,196 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-03 17:07:02,223 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-03 17:07:02,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-03 17:07:02,224 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-03 17:07:02,224 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-03 17:07:02,225 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-03 17:07:02,225 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-03 17:07:02,225 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-03 17:07:02,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-03 17:07:02,226 INFO L138 SettingsManager]: * Use SBE=true [2022-03-03 17:07:02,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-03 17:07:02,226 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-03 17:07:02,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-03 17:07:02,227 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-03 17:07:02,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-03 17:07:02,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-03 17:07:02,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-03 17:07:02,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-03 17:07:02,228 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-03 17:07:02,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-03 17:07:02,228 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-03 17:07:02,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-03 17:07:02,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-03 17:07:02,228 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-03 17:07:02,229 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-03 17:07:02,229 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-03 17:07:02,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 17:07:02,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-03 17:07:02,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-03 17:07:02,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-03 17:07:02,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-03 17:07:02,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-03 17:07:02,230 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-03 17:07:02,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-03 17:07:02,230 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-03 17:07:02,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-03 17:07:02,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-03 17:07:02,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-03 17:07:02,458 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-03 17:07:02,458 INFO L275 PluginConnector]: CDTParser initialized [2022-03-03 17:07:02,459 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-bakery-3.wvr.c [2022-03-03 17:07:02,507 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efe0fa497/1b474e4a5b7442a1b897cb24e4c7fc3a/FLAG7a57c3c51 [2022-03-03 17:07:02,857 INFO L306 CDTParser]: Found 1 translation units. [2022-03-03 17:07:02,857 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-3.wvr.c [2022-03-03 17:07:02,867 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efe0fa497/1b474e4a5b7442a1b897cb24e4c7fc3a/FLAG7a57c3c51 [2022-03-03 17:07:03,274 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efe0fa497/1b474e4a5b7442a1b897cb24e4c7fc3a [2022-03-03 17:07:03,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-03 17:07:03,277 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-03 17:07:03,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-03 17:07:03,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-03 17:07:03,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-03 17:07:03,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 05:07:03" (1/1) ... [2022-03-03 17:07:03,282 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@124902c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:07:03, skipping insertion in model container [2022-03-03 17:07:03,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 05:07:03" (1/1) ... [2022-03-03 17:07:03,289 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-03 17:07:03,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-03 17:07:03,464 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/parallel-bakery-3.wvr.c[5426,5439] [2022-03-03 17:07:03,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 17:07:03,473 INFO L203 MainTranslator]: Completed pre-run [2022-03-03 17:07:03,497 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/parallel-bakery-3.wvr.c[5426,5439] [2022-03-03 17:07:03,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 17:07:03,509 INFO L208 MainTranslator]: Completed translation [2022-03-03 17:07:03,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:07:03 WrapperNode [2022-03-03 17:07:03,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-03 17:07:03,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-03 17:07:03,510 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-03 17:07:03,510 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-03 17:07:03,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:07:03" (1/1) ... [2022-03-03 17:07:03,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:07:03" (1/1) ... [2022-03-03 17:07:03,542 INFO L137 Inliner]: procedures = 22, calls = 110, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 279 [2022-03-03 17:07:03,542 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-03 17:07:03,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-03 17:07:03,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-03 17:07:03,543 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-03 17:07:03,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:07:03" (1/1) ... [2022-03-03 17:07:03,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:07:03" (1/1) ... [2022-03-03 17:07:03,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:07:03" (1/1) ... [2022-03-03 17:07:03,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:07:03" (1/1) ... [2022-03-03 17:07:03,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:07:03" (1/1) ... [2022-03-03 17:07:03,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:07:03" (1/1) ... [2022-03-03 17:07:03,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:07:03" (1/1) ... [2022-03-03 17:07:03,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-03 17:07:03,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-03 17:07:03,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-03 17:07:03,564 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-03 17:07:03,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:07:03" (1/1) ... [2022-03-03 17:07:03,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 17:07:03,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:07:03,595 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) [2022-03-03 17:07:03,597 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 [2022-03-03 17:07:03,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-03 17:07:03,626 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-03 17:07:03,626 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-03 17:07:03,626 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-03 17:07:03,626 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-03 17:07:03,626 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-03 17:07:03,627 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-03 17:07:03,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-03 17:07:03,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-03 17:07:03,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-03 17:07:03,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-03 17:07:03,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-03 17:07:03,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-03 17:07:03,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-03 17:07:03,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-03 17:07:03,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-03 17:07:03,629 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-03 17:07:03,700 INFO L234 CfgBuilder]: Building ICFG [2022-03-03 17:07:03,701 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-03 17:07:03,981 INFO L275 CfgBuilder]: Performing block encoding [2022-03-03 17:07:04,116 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-03 17:07:04,116 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-03 17:07:04,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 05:07:04 BoogieIcfgContainer [2022-03-03 17:07:04,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-03 17:07:04,120 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-03 17:07:04,120 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-03 17:07:04,123 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-03 17:07:04,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 05:07:03" (1/3) ... [2022-03-03 17:07:04,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d1d3ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 05:07:04, skipping insertion in model container [2022-03-03 17:07:04,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:07:03" (2/3) ... [2022-03-03 17:07:04,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d1d3ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 05:07:04, skipping insertion in model container [2022-03-03 17:07:04,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 05:07:04" (3/3) ... [2022-03-03 17:07:04,125 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-bakery-3.wvr.c [2022-03-03 17:07:04,129 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-03 17:07:04,129 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-03 17:07:04,129 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-03 17:07:04,130 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-03 17:07:04,191 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,192 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,192 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,192 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,192 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,192 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,193 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,193 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,193 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,193 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,194 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,194 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,194 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,194 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,194 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,195 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,195 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,195 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,195 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,195 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,196 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,196 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,198 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,199 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,199 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,200 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,200 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,200 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,200 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,201 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,201 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,201 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,201 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,202 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,203 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,203 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,204 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,204 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,204 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,204 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,204 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,205 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,205 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,205 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,205 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,206 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,206 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,206 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,206 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,207 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,208 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,208 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,208 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,208 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,210 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,211 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,211 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,212 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,212 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,212 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,212 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,213 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,213 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,213 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,213 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,214 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,215 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,216 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,216 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,216 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,216 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,217 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,217 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,217 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,217 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,226 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,226 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,227 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,227 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,227 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,228 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,228 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,229 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,230 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,230 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,233 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,236 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,236 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,236 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,237 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,237 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,237 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,237 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,237 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,237 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,238 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:07:04,240 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-03 17:07:04,287 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 17:07:04,293 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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=true, mMcrOverapproximateWrwc=true [2022-03-03 17:07:04,293 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-03 17:07:04,306 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 160 places, 152 transitions, 328 flow [2022-03-03 17:07:04,932 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 15733 states, 15732 states have (on average 3.4366895499618613) internal successors, (54066), 15732 states have internal predecessors, (54066), 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) [2022-03-03 17:07:04,967 INFO L276 IsEmpty]: Start isEmpty. Operand has 15733 states, 15732 states have (on average 3.4366895499618613) internal successors, (54066), 15732 states have internal predecessors, (54066), 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) [2022-03-03 17:07:05,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:05,146 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:05,147 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:05,148 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:05,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:05,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1965078490, now seen corresponding path program 1 times [2022-03-03 17:07:05,163 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:05,163 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885652676] [2022-03-03 17:07:05,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:05,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:05,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:05,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:05,588 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:05,588 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885652676] [2022-03-03 17:07:05,589 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885652676] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:05,589 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:05,589 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 17:07:05,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941364125] [2022-03-03 17:07:05,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:05,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 17:07:05,595 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:05,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 17:07:05,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 17:07:05,659 INFO L87 Difference]: Start difference. First operand has 15733 states, 15732 states have (on average 3.4366895499618613) internal successors, (54066), 15732 states have internal predecessors, (54066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:06,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:06,031 INFO L93 Difference]: Finished difference Result 15733 states and 53560 transitions. [2022-03-03 17:07:06,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 17:07:06,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:06,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:06,202 INFO L225 Difference]: With dead ends: 15733 [2022-03-03 17:07:06,203 INFO L226 Difference]: Without dead ends: 15731 [2022-03-03 17:07:06,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 17:07:06,207 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 31 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:06,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 240 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:07:06,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15731 states. [2022-03-03 17:07:06,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15731 to 15731. [2022-03-03 17:07:06,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15731 states, 15730 states have (on average 3.4048315321042595) internal successors, (53558), 15730 states have internal predecessors, (53558), 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) [2022-03-03 17:07:07,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15731 states to 15731 states and 53558 transitions. [2022-03-03 17:07:07,024 INFO L78 Accepts]: Start accepts. Automaton has 15731 states and 53558 transitions. Word has length 134 [2022-03-03 17:07:07,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:07,026 INFO L470 AbstractCegarLoop]: Abstraction has 15731 states and 53558 transitions. [2022-03-03 17:07:07,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:07,028 INFO L276 IsEmpty]: Start isEmpty. Operand 15731 states and 53558 transitions. [2022-03-03 17:07:07,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:07,088 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:07,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:07,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-03 17:07:07,091 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:07,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:07,094 INFO L85 PathProgramCache]: Analyzing trace with hash 710948772, now seen corresponding path program 2 times [2022-03-03 17:07:07,094 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:07,094 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491912978] [2022-03-03 17:07:07,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:07,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:07,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:07,590 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:07,590 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491912978] [2022-03-03 17:07:07,591 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491912978] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:07,591 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:07,591 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-03 17:07:07,591 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218179059] [2022-03-03 17:07:07,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:07,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-03 17:07:07,593 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:07,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-03 17:07:07,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-03-03 17:07:07,596 INFO L87 Difference]: Start difference. First operand 15731 states and 53558 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:08,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:08,430 INFO L93 Difference]: Finished difference Result 22824 states and 75334 transitions. [2022-03-03 17:07:08,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-03 17:07:08,430 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:08,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:08,519 INFO L225 Difference]: With dead ends: 22824 [2022-03-03 17:07:08,519 INFO L226 Difference]: Without dead ends: 21537 [2022-03-03 17:07:08,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:07:08,521 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 641 mSDsluCounter, 2178 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 1811 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:08,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [641 Valid, 1811 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:07:08,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21537 states. [2022-03-03 17:07:09,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21537 to 15945. [2022-03-03 17:07:09,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15945 states, 15944 states have (on average 3.3906171600602106) internal successors, (54060), 15944 states have internal predecessors, (54060), 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) [2022-03-03 17:07:09,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15945 states to 15945 states and 54060 transitions. [2022-03-03 17:07:09,146 INFO L78 Accepts]: Start accepts. Automaton has 15945 states and 54060 transitions. Word has length 134 [2022-03-03 17:07:09,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:09,146 INFO L470 AbstractCegarLoop]: Abstraction has 15945 states and 54060 transitions. [2022-03-03 17:07:09,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:09,147 INFO L276 IsEmpty]: Start isEmpty. Operand 15945 states and 54060 transitions. [2022-03-03 17:07:09,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:09,196 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:09,196 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:09,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-03 17:07:09,197 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:09,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:09,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1264467722, now seen corresponding path program 3 times [2022-03-03 17:07:09,197 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:09,198 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507728509] [2022-03-03 17:07:09,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:09,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:09,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:09,680 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:09,680 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507728509] [2022-03-03 17:07:09,682 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507728509] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:09,682 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:09,682 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:07:09,682 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657341882] [2022-03-03 17:07:09,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:09,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:07:09,684 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:09,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:07:09,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:07:09,688 INFO L87 Difference]: Start difference. First operand 15945 states and 54060 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:10,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:10,147 INFO L93 Difference]: Finished difference Result 17274 states and 58099 transitions. [2022-03-03 17:07:10,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 17:07:10,148 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:10,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:10,221 INFO L225 Difference]: With dead ends: 17274 [2022-03-03 17:07:10,222 INFO L226 Difference]: Without dead ends: 16203 [2022-03-03 17:07:10,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:07:10,228 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 170 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:10,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 875 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:07:10,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16203 states. [2022-03-03 17:07:10,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16203 to 16155. [2022-03-03 17:07:10,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16155 states, 16154 states have (on average 3.3819487433453013) internal successors, (54632), 16154 states have internal predecessors, (54632), 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) [2022-03-03 17:07:10,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16155 states to 16155 states and 54632 transitions. [2022-03-03 17:07:10,716 INFO L78 Accepts]: Start accepts. Automaton has 16155 states and 54632 transitions. Word has length 134 [2022-03-03 17:07:10,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:10,716 INFO L470 AbstractCegarLoop]: Abstraction has 16155 states and 54632 transitions. [2022-03-03 17:07:10,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:10,716 INFO L276 IsEmpty]: Start isEmpty. Operand 16155 states and 54632 transitions. [2022-03-03 17:07:10,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:10,781 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:10,781 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:10,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-03 17:07:10,782 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:10,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:10,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1979146438, now seen corresponding path program 4 times [2022-03-03 17:07:10,783 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:10,783 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813485051] [2022-03-03 17:07:10,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:10,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:10,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:10,968 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:10,968 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813485051] [2022-03-03 17:07:10,968 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813485051] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:10,969 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:10,969 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 17:07:10,969 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902183366] [2022-03-03 17:07:10,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:10,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 17:07:10,970 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:10,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 17:07:10,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2022-03-03 17:07:10,970 INFO L87 Difference]: Start difference. First operand 16155 states and 54632 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:11,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:11,404 INFO L93 Difference]: Finished difference Result 19293 states and 65201 transitions. [2022-03-03 17:07:11,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 17:07:11,404 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:11,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:11,466 INFO L225 Difference]: With dead ends: 19293 [2022-03-03 17:07:11,466 INFO L226 Difference]: Without dead ends: 17928 [2022-03-03 17:07:11,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2022-03-03 17:07:11,467 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 267 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:11,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 385 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:07:11,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17928 states. [2022-03-03 17:07:12,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17928 to 17718. [2022-03-03 17:07:12,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17718 states, 17717 states have (on average 3.390359541683129) internal successors, (60067), 17717 states have internal predecessors, (60067), 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) [2022-03-03 17:07:12,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17718 states to 17718 states and 60067 transitions. [2022-03-03 17:07:12,234 INFO L78 Accepts]: Start accepts. Automaton has 17718 states and 60067 transitions. Word has length 134 [2022-03-03 17:07:12,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:12,235 INFO L470 AbstractCegarLoop]: Abstraction has 17718 states and 60067 transitions. [2022-03-03 17:07:12,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:12,235 INFO L276 IsEmpty]: Start isEmpty. Operand 17718 states and 60067 transitions. [2022-03-03 17:07:12,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:12,273 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:12,274 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:12,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-03 17:07:12,274 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:12,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:12,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1050060838, now seen corresponding path program 5 times [2022-03-03 17:07:12,275 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:12,275 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277556614] [2022-03-03 17:07:12,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:12,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:12,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:12,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:12,435 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:12,435 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277556614] [2022-03-03 17:07:12,435 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277556614] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:12,435 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:12,435 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 17:07:12,435 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130559602] [2022-03-03 17:07:12,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:12,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 17:07:12,436 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:12,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 17:07:12,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-03-03 17:07:12,436 INFO L87 Difference]: Start difference. First operand 17718 states and 60067 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:12,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:12,924 INFO L93 Difference]: Finished difference Result 23441 states and 79019 transitions. [2022-03-03 17:07:12,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-03 17:07:12,925 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:12,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:12,991 INFO L225 Difference]: With dead ends: 23441 [2022-03-03 17:07:12,991 INFO L226 Difference]: Without dead ends: 23441 [2022-03-03 17:07:12,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-03-03 17:07:12,992 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 348 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:12,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [348 Valid, 570 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:07:13,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23441 states. [2022-03-03 17:07:13,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23441 to 19770. [2022-03-03 17:07:13,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19770 states, 19769 states have (on average 3.3602610147200163) internal successors, (66429), 19769 states have internal predecessors, (66429), 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) [2022-03-03 17:07:13,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19770 states to 19770 states and 66429 transitions. [2022-03-03 17:07:13,593 INFO L78 Accepts]: Start accepts. Automaton has 19770 states and 66429 transitions. Word has length 134 [2022-03-03 17:07:13,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:13,593 INFO L470 AbstractCegarLoop]: Abstraction has 19770 states and 66429 transitions. [2022-03-03 17:07:13,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:13,594 INFO L276 IsEmpty]: Start isEmpty. Operand 19770 states and 66429 transitions. [2022-03-03 17:07:13,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:13,789 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:13,789 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:13,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-03 17:07:13,790 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:13,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:13,792 INFO L85 PathProgramCache]: Analyzing trace with hash -932759446, now seen corresponding path program 6 times [2022-03-03 17:07:13,793 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:13,793 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457403390] [2022-03-03 17:07:13,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:13,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:13,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:13,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:13,999 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:13,999 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457403390] [2022-03-03 17:07:13,999 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457403390] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:14,000 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:14,000 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-03 17:07:14,000 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113853562] [2022-03-03 17:07:14,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:14,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-03 17:07:14,001 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:14,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-03 17:07:14,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-03-03 17:07:14,002 INFO L87 Difference]: Start difference. First operand 19770 states and 66429 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:14,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:14,726 INFO L93 Difference]: Finished difference Result 25835 states and 85136 transitions. [2022-03-03 17:07:14,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-03 17:07:14,730 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:14,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:14,806 INFO L225 Difference]: With dead ends: 25835 [2022-03-03 17:07:14,806 INFO L226 Difference]: Without dead ends: 24434 [2022-03-03 17:07:14,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:07:14,807 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 562 mSDsluCounter, 2182 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:14,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [562 Valid, 1792 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:07:15,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24434 states. [2022-03-03 17:07:15,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24434 to 19978. [2022-03-03 17:07:15,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19978 states, 19977 states have (on average 3.3505030785403216) internal successors, (66933), 19977 states have internal predecessors, (66933), 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) [2022-03-03 17:07:15,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19978 states to 19978 states and 66933 transitions. [2022-03-03 17:07:15,495 INFO L78 Accepts]: Start accepts. Automaton has 19978 states and 66933 transitions. Word has length 134 [2022-03-03 17:07:15,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:15,495 INFO L470 AbstractCegarLoop]: Abstraction has 19978 states and 66933 transitions. [2022-03-03 17:07:15,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:15,495 INFO L276 IsEmpty]: Start isEmpty. Operand 19978 states and 66933 transitions. [2022-03-03 17:07:15,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:15,536 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:15,536 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:15,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-03 17:07:15,537 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:15,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:15,537 INFO L85 PathProgramCache]: Analyzing trace with hash 607818392, now seen corresponding path program 7 times [2022-03-03 17:07:15,537 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:15,538 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462155733] [2022-03-03 17:07:15,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:15,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:15,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:15,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:15,662 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:15,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462155733] [2022-03-03 17:07:15,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462155733] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:15,662 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:15,662 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-03 17:07:15,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603989602] [2022-03-03 17:07:15,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:15,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-03 17:07:15,663 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:15,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-03 17:07:15,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-03-03 17:07:15,664 INFO L87 Difference]: Start difference. First operand 19978 states and 66933 transitions. Second operand has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:16,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:16,175 INFO L93 Difference]: Finished difference Result 35734 states and 121578 transitions. [2022-03-03 17:07:16,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 17:07:16,177 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:16,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:16,292 INFO L225 Difference]: With dead ends: 35734 [2022-03-03 17:07:16,292 INFO L226 Difference]: Without dead ends: 35430 [2022-03-03 17:07:16,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-03-03 17:07:16,293 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 159 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:16,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 833 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:07:16,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35430 states. [2022-03-03 17:07:16,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35430 to 20950. [2022-03-03 17:07:16,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20950 states, 20949 states have (on average 3.349849634827438) internal successors, (70176), 20949 states have internal predecessors, (70176), 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) [2022-03-03 17:07:16,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20950 states to 20950 states and 70176 transitions. [2022-03-03 17:07:16,926 INFO L78 Accepts]: Start accepts. Automaton has 20950 states and 70176 transitions. Word has length 134 [2022-03-03 17:07:16,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:16,927 INFO L470 AbstractCegarLoop]: Abstraction has 20950 states and 70176 transitions. [2022-03-03 17:07:16,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:16,927 INFO L276 IsEmpty]: Start isEmpty. Operand 20950 states and 70176 transitions. [2022-03-03 17:07:16,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:16,964 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:16,964 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:16,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-03 17:07:16,964 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:16,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:16,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1954465832, now seen corresponding path program 8 times [2022-03-03 17:07:16,965 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:16,965 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594820594] [2022-03-03 17:07:16,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:16,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:17,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:17,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:17,211 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:17,211 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594820594] [2022-03-03 17:07:17,211 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594820594] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:17,211 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:17,211 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-03 17:07:17,211 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392230628] [2022-03-03 17:07:17,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:17,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-03 17:07:17,212 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:17,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-03 17:07:17,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-03-03 17:07:17,213 INFO L87 Difference]: Start difference. First operand 20950 states and 70176 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:18,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:18,028 INFO L93 Difference]: Finished difference Result 29171 states and 97155 transitions. [2022-03-03 17:07:18,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-03 17:07:18,028 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:18,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:18,114 INFO L225 Difference]: With dead ends: 29171 [2022-03-03 17:07:18,115 INFO L226 Difference]: Without dead ends: 28553 [2022-03-03 17:07:18,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2022-03-03 17:07:18,116 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 384 mSDsluCounter, 1495 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:18,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [384 Valid, 1462 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:07:18,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28553 states. [2022-03-03 17:07:18,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28553 to 20950. [2022-03-03 17:07:18,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20950 states, 20949 states have (on average 3.3478447658599455) internal successors, (70134), 20949 states have internal predecessors, (70134), 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) [2022-03-03 17:07:18,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20950 states to 20950 states and 70134 transitions. [2022-03-03 17:07:18,653 INFO L78 Accepts]: Start accepts. Automaton has 20950 states and 70134 transitions. Word has length 134 [2022-03-03 17:07:18,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:18,653 INFO L470 AbstractCegarLoop]: Abstraction has 20950 states and 70134 transitions. [2022-03-03 17:07:18,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:18,653 INFO L276 IsEmpty]: Start isEmpty. Operand 20950 states and 70134 transitions. [2022-03-03 17:07:18,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:18,687 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:18,687 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:18,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-03 17:07:18,687 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:18,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:18,688 INFO L85 PathProgramCache]: Analyzing trace with hash 314972410, now seen corresponding path program 9 times [2022-03-03 17:07:18,688 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:18,688 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905868084] [2022-03-03 17:07:18,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:18,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:18,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:18,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:18,735 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:18,735 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905868084] [2022-03-03 17:07:18,735 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905868084] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:18,735 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:18,735 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 17:07:18,735 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724348841] [2022-03-03 17:07:18,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:18,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 17:07:18,736 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:18,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 17:07:18,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 17:07:18,736 INFO L87 Difference]: Start difference. First operand 20950 states and 70134 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:19,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:19,016 INFO L93 Difference]: Finished difference Result 20192 states and 66742 transitions. [2022-03-03 17:07:19,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 17:07:19,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:19,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:19,058 INFO L225 Difference]: With dead ends: 20192 [2022-03-03 17:07:19,058 INFO L226 Difference]: Without dead ends: 20192 [2022-03-03 17:07:19,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 17:07:19,060 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 35 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:19,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 230 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 17:07:19,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20192 states. [2022-03-03 17:07:19,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20192 to 20192. [2022-03-03 17:07:19,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20192 states, 20191 states have (on average 3.3055321677975336) internal successors, (66742), 20191 states have internal predecessors, (66742), 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) [2022-03-03 17:07:19,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20192 states to 20192 states and 66742 transitions. [2022-03-03 17:07:19,539 INFO L78 Accepts]: Start accepts. Automaton has 20192 states and 66742 transitions. Word has length 134 [2022-03-03 17:07:19,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:19,540 INFO L470 AbstractCegarLoop]: Abstraction has 20192 states and 66742 transitions. [2022-03-03 17:07:19,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:19,540 INFO L276 IsEmpty]: Start isEmpty. Operand 20192 states and 66742 transitions. [2022-03-03 17:07:19,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:19,574 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:19,574 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:19,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-03 17:07:19,574 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:19,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:19,575 INFO L85 PathProgramCache]: Analyzing trace with hash 595359392, now seen corresponding path program 10 times [2022-03-03 17:07:19,575 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:19,575 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772186950] [2022-03-03 17:07:19,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:19,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:19,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:19,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:19,791 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:19,791 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772186950] [2022-03-03 17:07:19,791 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772186950] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:19,791 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:19,791 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-03 17:07:19,791 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642525318] [2022-03-03 17:07:19,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:19,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-03 17:07:19,792 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:19,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-03 17:07:19,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:07:19,793 INFO L87 Difference]: Start difference. First operand 20192 states and 66742 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:20,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:20,366 INFO L93 Difference]: Finished difference Result 27008 states and 88615 transitions. [2022-03-03 17:07:20,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 17:07:20,367 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:20,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:20,645 INFO L225 Difference]: With dead ends: 27008 [2022-03-03 17:07:20,645 INFO L226 Difference]: Without dead ends: 25258 [2022-03-03 17:07:20,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2022-03-03 17:07:20,646 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 429 mSDsluCounter, 874 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:20,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 941 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:07:20,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25258 states. [2022-03-03 17:07:20,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25258 to 19940. [2022-03-03 17:07:20,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19940 states, 19939 states have (on average 3.303876824314158) internal successors, (65876), 19939 states have internal predecessors, (65876), 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) [2022-03-03 17:07:21,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19940 states to 19940 states and 65876 transitions. [2022-03-03 17:07:21,174 INFO L78 Accepts]: Start accepts. Automaton has 19940 states and 65876 transitions. Word has length 134 [2022-03-03 17:07:21,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:21,175 INFO L470 AbstractCegarLoop]: Abstraction has 19940 states and 65876 transitions. [2022-03-03 17:07:21,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:21,175 INFO L276 IsEmpty]: Start isEmpty. Operand 19940 states and 65876 transitions. [2022-03-03 17:07:21,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:21,205 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:21,206 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:21,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-03 17:07:21,206 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:21,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:21,206 INFO L85 PathProgramCache]: Analyzing trace with hash 939090806, now seen corresponding path program 11 times [2022-03-03 17:07:21,207 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:21,207 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813504219] [2022-03-03 17:07:21,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:21,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:21,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:21,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:21,489 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:21,489 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813504219] [2022-03-03 17:07:21,489 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813504219] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:21,489 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:21,489 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 17:07:21,489 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385033670] [2022-03-03 17:07:21,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:21,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 17:07:21,490 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:21,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 17:07:21,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:07:21,490 INFO L87 Difference]: Start difference. First operand 19940 states and 65876 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:21,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:21,897 INFO L93 Difference]: Finished difference Result 23478 states and 77447 transitions. [2022-03-03 17:07:21,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-03 17:07:21,898 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:21,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:21,948 INFO L225 Difference]: With dead ends: 23478 [2022-03-03 17:07:21,948 INFO L226 Difference]: Without dead ends: 22930 [2022-03-03 17:07:21,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-03-03 17:07:21,949 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 249 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:21,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 993 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:07:21,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22930 states. [2022-03-03 17:07:22,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22930 to 19964. [2022-03-03 17:07:22,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19964 states, 19963 states have (on average 3.301808345439062) internal successors, (65914), 19963 states have internal predecessors, (65914), 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) [2022-03-03 17:07:22,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19964 states to 19964 states and 65914 transitions. [2022-03-03 17:07:22,396 INFO L78 Accepts]: Start accepts. Automaton has 19964 states and 65914 transitions. Word has length 134 [2022-03-03 17:07:22,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:22,397 INFO L470 AbstractCegarLoop]: Abstraction has 19964 states and 65914 transitions. [2022-03-03 17:07:22,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:22,397 INFO L276 IsEmpty]: Start isEmpty. Operand 19964 states and 65914 transitions. [2022-03-03 17:07:22,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:22,428 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:22,429 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:22,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-03 17:07:22,429 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:22,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:22,429 INFO L85 PathProgramCache]: Analyzing trace with hash -630940832, now seen corresponding path program 12 times [2022-03-03 17:07:22,429 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:22,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361181540] [2022-03-03 17:07:22,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:22,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:22,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:22,621 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:22,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361181540] [2022-03-03 17:07:22,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361181540] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:22,621 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:22,621 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 17:07:22,621 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412096345] [2022-03-03 17:07:22,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:22,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 17:07:22,622 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:22,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 17:07:22,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:07:22,622 INFO L87 Difference]: Start difference. First operand 19964 states and 65914 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:23,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:23,246 INFO L93 Difference]: Finished difference Result 38501 states and 128992 transitions. [2022-03-03 17:07:23,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-03 17:07:23,247 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:23,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:23,340 INFO L225 Difference]: With dead ends: 38501 [2022-03-03 17:07:23,341 INFO L226 Difference]: Without dead ends: 37647 [2022-03-03 17:07:23,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=77, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:07:23,341 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 311 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:23,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [311 Valid, 882 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:07:23,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37647 states. [2022-03-03 17:07:23,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37647 to 20646. [2022-03-03 17:07:23,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20646 states, 20645 states have (on average 3.29266166141923) internal successors, (67977), 20645 states have internal predecessors, (67977), 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) [2022-03-03 17:07:23,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20646 states to 20646 states and 67977 transitions. [2022-03-03 17:07:23,883 INFO L78 Accepts]: Start accepts. Automaton has 20646 states and 67977 transitions. Word has length 134 [2022-03-03 17:07:23,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:23,883 INFO L470 AbstractCegarLoop]: Abstraction has 20646 states and 67977 transitions. [2022-03-03 17:07:23,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:23,883 INFO L276 IsEmpty]: Start isEmpty. Operand 20646 states and 67977 transitions. [2022-03-03 17:07:23,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:23,915 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:23,915 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:23,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-03 17:07:23,916 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:23,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:23,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1577188288, now seen corresponding path program 13 times [2022-03-03 17:07:23,916 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:23,916 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998269705] [2022-03-03 17:07:23,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:23,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:24,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:24,116 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:24,116 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998269705] [2022-03-03 17:07:24,116 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998269705] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:24,116 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:24,116 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-03 17:07:24,116 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43295060] [2022-03-03 17:07:24,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:24,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-03 17:07:24,117 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:24,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-03 17:07:24,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:07:24,117 INFO L87 Difference]: Start difference. First operand 20646 states and 67977 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:24,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:24,748 INFO L93 Difference]: Finished difference Result 28292 states and 92856 transitions. [2022-03-03 17:07:24,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-03 17:07:24,748 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:24,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:24,812 INFO L225 Difference]: With dead ends: 28292 [2022-03-03 17:07:24,812 INFO L226 Difference]: Without dead ends: 28292 [2022-03-03 17:07:24,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-03-03 17:07:24,813 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 320 mSDsluCounter, 1373 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:24,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 1360 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:07:24,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28292 states. [2022-03-03 17:07:25,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28292 to 21914. [2022-03-03 17:07:25,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21914 states, 21913 states have (on average 3.284990644822708) internal successors, (71984), 21913 states have internal predecessors, (71984), 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) [2022-03-03 17:07:25,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21914 states to 21914 states and 71984 transitions. [2022-03-03 17:07:25,279 INFO L78 Accepts]: Start accepts. Automaton has 21914 states and 71984 transitions. Word has length 134 [2022-03-03 17:07:25,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:25,279 INFO L470 AbstractCegarLoop]: Abstraction has 21914 states and 71984 transitions. [2022-03-03 17:07:25,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:25,280 INFO L276 IsEmpty]: Start isEmpty. Operand 21914 states and 71984 transitions. [2022-03-03 17:07:25,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:25,315 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:25,315 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:25,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-03 17:07:25,315 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:25,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:25,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1664706560, now seen corresponding path program 14 times [2022-03-03 17:07:25,315 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:25,316 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326338636] [2022-03-03 17:07:25,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:25,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:25,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:25,476 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:25,476 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326338636] [2022-03-03 17:07:25,476 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326338636] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:25,476 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:25,477 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-03 17:07:25,477 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376497289] [2022-03-03 17:07:25,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:25,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-03 17:07:25,477 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:25,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-03 17:07:25,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-03-03 17:07:25,478 INFO L87 Difference]: Start difference. First operand 21914 states and 71984 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:26,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:26,204 INFO L93 Difference]: Finished difference Result 27661 states and 89820 transitions. [2022-03-03 17:07:26,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-03 17:07:26,205 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:26,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:26,266 INFO L225 Difference]: With dead ends: 27661 [2022-03-03 17:07:26,266 INFO L226 Difference]: Without dead ends: 24741 [2022-03-03 17:07:26,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:07:26,267 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 480 mSDsluCounter, 2439 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 1976 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:26,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [480 Valid, 1976 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1029 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:07:26,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24741 states. [2022-03-03 17:07:26,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24741 to 20220. [2022-03-03 17:07:26,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20220 states, 20219 states have (on average 3.2894307334685196) internal successors, (66509), 20219 states have internal predecessors, (66509), 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) [2022-03-03 17:07:26,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20220 states to 20220 states and 66509 transitions. [2022-03-03 17:07:26,793 INFO L78 Accepts]: Start accepts. Automaton has 20220 states and 66509 transitions. Word has length 134 [2022-03-03 17:07:26,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:26,793 INFO L470 AbstractCegarLoop]: Abstraction has 20220 states and 66509 transitions. [2022-03-03 17:07:26,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:26,794 INFO L276 IsEmpty]: Start isEmpty. Operand 20220 states and 66509 transitions. [2022-03-03 17:07:26,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:26,825 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:26,825 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:26,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-03 17:07:26,825 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:26,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:26,826 INFO L85 PathProgramCache]: Analyzing trace with hash 858845650, now seen corresponding path program 15 times [2022-03-03 17:07:26,826 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:26,826 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641848786] [2022-03-03 17:07:26,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:26,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:26,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:27,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:27,027 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:27,027 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641848786] [2022-03-03 17:07:27,028 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641848786] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:27,028 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:27,028 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-03 17:07:27,028 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943659865] [2022-03-03 17:07:27,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:27,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-03 17:07:27,028 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:27,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-03 17:07:27,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:07:27,029 INFO L87 Difference]: Start difference. First operand 20220 states and 66509 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:27,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:27,441 INFO L93 Difference]: Finished difference Result 21236 states and 69863 transitions. [2022-03-03 17:07:27,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-03 17:07:27,441 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:27,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:27,493 INFO L225 Difference]: With dead ends: 21236 [2022-03-03 17:07:27,493 INFO L226 Difference]: Without dead ends: 21236 [2022-03-03 17:07:27,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:07:27,494 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 175 mSDsluCounter, 1027 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:27,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 1017 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:07:27,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21236 states. [2022-03-03 17:07:27,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21236 to 20284. [2022-03-03 17:07:27,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20284 states, 20283 states have (on average 3.288714687176453) internal successors, (66705), 20283 states have internal predecessors, (66705), 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) [2022-03-03 17:07:27,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20284 states to 20284 states and 66705 transitions. [2022-03-03 17:07:27,948 INFO L78 Accepts]: Start accepts. Automaton has 20284 states and 66705 transitions. Word has length 134 [2022-03-03 17:07:27,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:27,948 INFO L470 AbstractCegarLoop]: Abstraction has 20284 states and 66705 transitions. [2022-03-03 17:07:27,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:27,948 INFO L276 IsEmpty]: Start isEmpty. Operand 20284 states and 66705 transitions. [2022-03-03 17:07:28,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:28,109 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:28,109 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:28,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-03 17:07:28,113 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:28,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:28,113 INFO L85 PathProgramCache]: Analyzing trace with hash 2039189400, now seen corresponding path program 16 times [2022-03-03 17:07:28,113 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:28,113 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130639603] [2022-03-03 17:07:28,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:28,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:28,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:28,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:28,326 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:28,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130639603] [2022-03-03 17:07:28,326 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130639603] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:28,326 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:28,326 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-03 17:07:28,326 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273892616] [2022-03-03 17:07:28,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:28,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-03 17:07:28,327 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:28,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-03 17:07:28,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:07:28,328 INFO L87 Difference]: Start difference. First operand 20284 states and 66705 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:28,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:28,898 INFO L93 Difference]: Finished difference Result 44537 states and 149878 transitions. [2022-03-03 17:07:28,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 17:07:28,899 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:28,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:28,997 INFO L225 Difference]: With dead ends: 44537 [2022-03-03 17:07:28,997 INFO L226 Difference]: Without dead ends: 42129 [2022-03-03 17:07:28,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2022-03-03 17:07:28,997 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 521 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:28,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [521 Valid, 1093 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:07:29,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42129 states. [2022-03-03 17:07:29,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42129 to 21916. [2022-03-03 17:07:29,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21916 states, 21915 states have (on average 3.30134610997034) internal successors, (72349), 21915 states have internal predecessors, (72349), 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) [2022-03-03 17:07:29,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21916 states to 21916 states and 72349 transitions. [2022-03-03 17:07:29,739 INFO L78 Accepts]: Start accepts. Automaton has 21916 states and 72349 transitions. Word has length 134 [2022-03-03 17:07:29,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:29,739 INFO L470 AbstractCegarLoop]: Abstraction has 21916 states and 72349 transitions. [2022-03-03 17:07:29,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:29,740 INFO L276 IsEmpty]: Start isEmpty. Operand 21916 states and 72349 transitions. [2022-03-03 17:07:29,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:29,898 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:29,898 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:29,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-03 17:07:29,899 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:29,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:29,899 INFO L85 PathProgramCache]: Analyzing trace with hash 321580766, now seen corresponding path program 17 times [2022-03-03 17:07:29,900 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:29,900 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323266512] [2022-03-03 17:07:29,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:29,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:29,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:30,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:30,143 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:30,144 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323266512] [2022-03-03 17:07:30,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323266512] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:30,144 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:30,144 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 17:07:30,144 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080555995] [2022-03-03 17:07:30,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:30,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 17:07:30,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:30,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 17:07:30,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:07:30,145 INFO L87 Difference]: Start difference. First operand 21916 states and 72349 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:30,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:30,623 INFO L93 Difference]: Finished difference Result 27415 states and 90518 transitions. [2022-03-03 17:07:30,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-03 17:07:30,627 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:30,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:30,693 INFO L225 Difference]: With dead ends: 27415 [2022-03-03 17:07:30,693 INFO L226 Difference]: Without dead ends: 27415 [2022-03-03 17:07:30,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-03-03 17:07:30,694 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 333 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:30,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 846 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:07:30,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27415 states. [2022-03-03 17:07:31,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27415 to 23128. [2022-03-03 17:07:31,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23128 states, 23127 states have (on average 3.2938989060405586) internal successors, (76178), 23127 states have internal predecessors, (76178), 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) [2022-03-03 17:07:31,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23128 states to 23128 states and 76178 transitions. [2022-03-03 17:07:31,207 INFO L78 Accepts]: Start accepts. Automaton has 23128 states and 76178 transitions. Word has length 134 [2022-03-03 17:07:31,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:31,207 INFO L470 AbstractCegarLoop]: Abstraction has 23128 states and 76178 transitions. [2022-03-03 17:07:31,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:31,208 INFO L276 IsEmpty]: Start isEmpty. Operand 23128 states and 76178 transitions. [2022-03-03 17:07:31,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:31,244 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:31,244 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:31,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-03 17:07:31,245 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:31,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:31,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1501924516, now seen corresponding path program 18 times [2022-03-03 17:07:31,245 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:31,245 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270621355] [2022-03-03 17:07:31,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:31,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:31,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:31,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:31,514 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:31,515 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270621355] [2022-03-03 17:07:31,515 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270621355] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:31,515 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:31,515 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 17:07:31,515 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610650603] [2022-03-03 17:07:31,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:31,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 17:07:31,515 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:31,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 17:07:31,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:07:31,516 INFO L87 Difference]: Start difference. First operand 23128 states and 76178 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:31,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:31,996 INFO L93 Difference]: Finished difference Result 23916 states and 78425 transitions. [2022-03-03 17:07:31,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-03 17:07:31,997 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:31,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:32,267 INFO L225 Difference]: With dead ends: 23916 [2022-03-03 17:07:32,267 INFO L226 Difference]: Without dead ends: 23368 [2022-03-03 17:07:32,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-03-03 17:07:32,268 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 144 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:32,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 1157 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:07:32,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23368 states. [2022-03-03 17:07:32,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23368 to 23024. [2022-03-03 17:07:32,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23024 states, 23023 states have (on average 3.2947921643573816) internal successors, (75856), 23023 states have internal predecessors, (75856), 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) [2022-03-03 17:07:32,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23024 states to 23024 states and 75856 transitions. [2022-03-03 17:07:32,865 INFO L78 Accepts]: Start accepts. Automaton has 23024 states and 75856 transitions. Word has length 134 [2022-03-03 17:07:32,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:32,865 INFO L470 AbstractCegarLoop]: Abstraction has 23024 states and 75856 transitions. [2022-03-03 17:07:32,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:32,866 INFO L276 IsEmpty]: Start isEmpty. Operand 23024 states and 75856 transitions. [2022-03-03 17:07:32,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:32,902 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:32,902 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:32,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-03 17:07:32,902 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:32,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:32,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1572281214, now seen corresponding path program 19 times [2022-03-03 17:07:32,903 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:32,903 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213976964] [2022-03-03 17:07:32,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:32,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:32,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:33,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:33,156 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:33,157 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213976964] [2022-03-03 17:07:33,157 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213976964] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:33,157 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:33,157 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:07:33,157 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776910128] [2022-03-03 17:07:33,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:33,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:07:33,158 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:33,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:07:33,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:07:33,159 INFO L87 Difference]: Start difference. First operand 23024 states and 75856 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:33,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:33,497 INFO L93 Difference]: Finished difference Result 23440 states and 77068 transitions. [2022-03-03 17:07:33,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 17:07:33,498 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:33,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:33,550 INFO L225 Difference]: With dead ends: 23440 [2022-03-03 17:07:33,550 INFO L226 Difference]: Without dead ends: 23440 [2022-03-03 17:07:33,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:07:33,551 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 197 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:33,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 745 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:07:33,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23440 states. [2022-03-03 17:07:33,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23440 to 23440. [2022-03-03 17:07:33,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23440 states, 23439 states have (on average 3.288024233115747) internal successors, (77068), 23439 states have internal predecessors, (77068), 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) [2022-03-03 17:07:34,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23440 states to 23440 states and 77068 transitions. [2022-03-03 17:07:34,023 INFO L78 Accepts]: Start accepts. Automaton has 23440 states and 77068 transitions. Word has length 134 [2022-03-03 17:07:34,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:34,023 INFO L470 AbstractCegarLoop]: Abstraction has 23440 states and 77068 transitions. [2022-03-03 17:07:34,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:34,024 INFO L276 IsEmpty]: Start isEmpty. Operand 23440 states and 77068 transitions. [2022-03-03 17:07:34,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:34,060 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:34,060 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:34,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-03 17:07:34,060 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:34,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:34,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1691636724, now seen corresponding path program 20 times [2022-03-03 17:07:34,061 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:34,061 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840512251] [2022-03-03 17:07:34,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:34,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:34,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:34,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:34,263 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:34,263 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840512251] [2022-03-03 17:07:34,263 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840512251] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:34,263 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:34,263 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 17:07:34,263 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54760859] [2022-03-03 17:07:34,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:34,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 17:07:34,264 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:34,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 17:07:34,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:07:34,264 INFO L87 Difference]: Start difference. First operand 23440 states and 77068 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:34,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:34,707 INFO L93 Difference]: Finished difference Result 23716 states and 77855 transitions. [2022-03-03 17:07:34,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-03 17:07:34,708 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:34,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:34,754 INFO L225 Difference]: With dead ends: 23716 [2022-03-03 17:07:34,755 INFO L226 Difference]: Without dead ends: 22992 [2022-03-03 17:07:34,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-03-03 17:07:34,755 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 183 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:34,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 947 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:07:34,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22992 states. [2022-03-03 17:07:35,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22992 to 22992. [2022-03-03 17:07:35,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22992 states, 22991 states have (on average 3.2939846026706103) internal successors, (75732), 22991 states have internal predecessors, (75732), 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) [2022-03-03 17:07:35,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22992 states to 22992 states and 75732 transitions. [2022-03-03 17:07:35,280 INFO L78 Accepts]: Start accepts. Automaton has 22992 states and 75732 transitions. Word has length 134 [2022-03-03 17:07:35,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:35,280 INFO L470 AbstractCegarLoop]: Abstraction has 22992 states and 75732 transitions. [2022-03-03 17:07:35,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:35,280 INFO L276 IsEmpty]: Start isEmpty. Operand 22992 states and 75732 transitions. [2022-03-03 17:07:35,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:35,316 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:35,317 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:35,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-03 17:07:35,317 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:35,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:35,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1060676230, now seen corresponding path program 21 times [2022-03-03 17:07:35,317 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:35,318 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806365578] [2022-03-03 17:07:35,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:35,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:35,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:35,520 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:35,520 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806365578] [2022-03-03 17:07:35,520 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806365578] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:35,520 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:35,521 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:07:35,521 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266891570] [2022-03-03 17:07:35,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:35,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:07:35,521 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:35,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:07:35,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:07:35,522 INFO L87 Difference]: Start difference. First operand 22992 states and 75732 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:35,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:35,953 INFO L93 Difference]: Finished difference Result 25114 states and 82393 transitions. [2022-03-03 17:07:35,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-03 17:07:35,954 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:35,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:36,021 INFO L225 Difference]: With dead ends: 25114 [2022-03-03 17:07:36,021 INFO L226 Difference]: Without dead ends: 24422 [2022-03-03 17:07:36,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:07:36,023 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 183 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:36,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 968 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:07:36,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24422 states. [2022-03-03 17:07:36,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24422 to 22920. [2022-03-03 17:07:36,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22920 states, 22919 states have (on average 3.2939482525415595) internal successors, (75494), 22919 states have internal predecessors, (75494), 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) [2022-03-03 17:07:36,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22920 states to 22920 states and 75494 transitions. [2022-03-03 17:07:36,595 INFO L78 Accepts]: Start accepts. Automaton has 22920 states and 75494 transitions. Word has length 134 [2022-03-03 17:07:36,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:36,595 INFO L470 AbstractCegarLoop]: Abstraction has 22920 states and 75494 transitions. [2022-03-03 17:07:36,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:36,595 INFO L276 IsEmpty]: Start isEmpty. Operand 22920 states and 75494 transitions. [2022-03-03 17:07:36,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:36,630 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:36,631 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:36,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-03 17:07:36,631 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:36,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:36,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1095133630, now seen corresponding path program 22 times [2022-03-03 17:07:36,632 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:36,632 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703582297] [2022-03-03 17:07:36,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:36,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:36,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:36,865 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:36,865 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703582297] [2022-03-03 17:07:36,865 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703582297] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:36,865 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:36,866 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:07:36,866 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181259022] [2022-03-03 17:07:36,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:36,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:07:36,866 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:36,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:07:36,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:07:36,867 INFO L87 Difference]: Start difference. First operand 22920 states and 75494 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:37,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:37,316 INFO L93 Difference]: Finished difference Result 23388 states and 76837 transitions. [2022-03-03 17:07:37,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 17:07:37,316 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:37,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:37,364 INFO L225 Difference]: With dead ends: 23388 [2022-03-03 17:07:37,364 INFO L226 Difference]: Without dead ends: 22620 [2022-03-03 17:07:37,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:07:37,365 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 128 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:37,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 980 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:07:37,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22620 states. [2022-03-03 17:07:37,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22620 to 22620. [2022-03-03 17:07:37,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22620 states, 22619 states have (on average 3.2943100932844067) internal successors, (74514), 22619 states have internal predecessors, (74514), 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) [2022-03-03 17:07:37,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22620 states to 22620 states and 74514 transitions. [2022-03-03 17:07:37,873 INFO L78 Accepts]: Start accepts. Automaton has 22620 states and 74514 transitions. Word has length 134 [2022-03-03 17:07:37,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:37,873 INFO L470 AbstractCegarLoop]: Abstraction has 22620 states and 74514 transitions. [2022-03-03 17:07:37,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:37,873 INFO L276 IsEmpty]: Start isEmpty. Operand 22620 states and 74514 transitions. [2022-03-03 17:07:37,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:37,908 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:37,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:37,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-03 17:07:37,908 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:37,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:37,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1576421818, now seen corresponding path program 23 times [2022-03-03 17:07:37,909 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:37,909 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770899062] [2022-03-03 17:07:37,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:37,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:38,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:38,144 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:38,144 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770899062] [2022-03-03 17:07:38,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770899062] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:38,144 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:38,145 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:07:38,145 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698188694] [2022-03-03 17:07:38,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:38,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:07:38,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:38,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:07:38,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:07:38,146 INFO L87 Difference]: Start difference. First operand 22620 states and 74514 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:38,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:38,991 INFO L93 Difference]: Finished difference Result 38256 states and 126341 transitions. [2022-03-03 17:07:38,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-03 17:07:38,991 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:38,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:39,091 INFO L225 Difference]: With dead ends: 38256 [2022-03-03 17:07:39,091 INFO L226 Difference]: Without dead ends: 37668 [2022-03-03 17:07:39,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2022-03-03 17:07:39,092 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 461 mSDsluCounter, 1319 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 1333 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:39,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [461 Valid, 1333 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:07:39,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37668 states. [2022-03-03 17:07:39,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37668 to 25990. [2022-03-03 17:07:39,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25990 states, 25989 states have (on average 3.2876986417330407) internal successors, (85444), 25989 states have internal predecessors, (85444), 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) [2022-03-03 17:07:39,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25990 states to 25990 states and 85444 transitions. [2022-03-03 17:07:39,786 INFO L78 Accepts]: Start accepts. Automaton has 25990 states and 85444 transitions. Word has length 134 [2022-03-03 17:07:39,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:39,786 INFO L470 AbstractCegarLoop]: Abstraction has 25990 states and 85444 transitions. [2022-03-03 17:07:39,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:39,786 INFO L276 IsEmpty]: Start isEmpty. Operand 25990 states and 85444 transitions. [2022-03-03 17:07:39,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:39,836 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:39,836 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:39,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-03 17:07:39,836 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:39,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:39,837 INFO L85 PathProgramCache]: Analyzing trace with hash -171270522, now seen corresponding path program 24 times [2022-03-03 17:07:39,837 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:39,837 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811734314] [2022-03-03 17:07:39,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:39,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:39,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:40,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:40,028 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:40,028 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811734314] [2022-03-03 17:07:40,028 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811734314] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:40,029 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:40,029 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 17:07:40,029 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526612525] [2022-03-03 17:07:40,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:40,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 17:07:40,029 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:40,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 17:07:40,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-03-03 17:07:40,030 INFO L87 Difference]: Start difference. First operand 25990 states and 85444 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:40,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:40,351 INFO L93 Difference]: Finished difference Result 27838 states and 91214 transitions. [2022-03-03 17:07:40,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 17:07:40,352 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:40,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:40,411 INFO L225 Difference]: With dead ends: 27838 [2022-03-03 17:07:40,411 INFO L226 Difference]: Without dead ends: 26566 [2022-03-03 17:07:40,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:07:40,412 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 184 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:40,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 703 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:07:40,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26566 states. [2022-03-03 17:07:40,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26566 to 26250. [2022-03-03 17:07:40,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26250 states, 26249 states have (on average 3.2945636024229494) internal successors, (86479), 26249 states have internal predecessors, (86479), 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) [2022-03-03 17:07:41,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26250 states to 26250 states and 86479 transitions. [2022-03-03 17:07:41,247 INFO L78 Accepts]: Start accepts. Automaton has 26250 states and 86479 transitions. Word has length 134 [2022-03-03 17:07:41,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:41,247 INFO L470 AbstractCegarLoop]: Abstraction has 26250 states and 86479 transitions. [2022-03-03 17:07:41,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:41,247 INFO L276 IsEmpty]: Start isEmpty. Operand 26250 states and 86479 transitions. [2022-03-03 17:07:41,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:41,299 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:41,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:41,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-03 17:07:41,300 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:41,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:41,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1074885588, now seen corresponding path program 25 times [2022-03-03 17:07:41,300 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:41,300 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633238072] [2022-03-03 17:07:41,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:41,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:41,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:41,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:41,528 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:41,529 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633238072] [2022-03-03 17:07:41,529 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633238072] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:41,529 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:41,529 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:07:41,529 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932784862] [2022-03-03 17:07:41,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:41,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:07:41,529 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:41,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:07:41,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:07:41,530 INFO L87 Difference]: Start difference. First operand 26250 states and 86479 transitions. Second operand has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:42,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:42,215 INFO L93 Difference]: Finished difference Result 49168 states and 163640 transitions. [2022-03-03 17:07:42,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-03 17:07:42,215 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:42,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:42,518 INFO L225 Difference]: With dead ends: 49168 [2022-03-03 17:07:42,518 INFO L226 Difference]: Without dead ends: 48748 [2022-03-03 17:07:42,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=303, Unknown=0, NotChecked=0, Total=420 [2022-03-03 17:07:42,519 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 379 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 1654 SdHoareTripleChecker+Invalid, 1024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:42,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [379 Valid, 1654 Invalid, 1024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:07:42,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48748 states. [2022-03-03 17:07:43,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48748 to 25854. [2022-03-03 17:07:43,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25854 states, 25853 states have (on average 3.30015858894519) internal successors, (85319), 25853 states have internal predecessors, (85319), 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) [2022-03-03 17:07:43,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25854 states to 25854 states and 85319 transitions. [2022-03-03 17:07:43,228 INFO L78 Accepts]: Start accepts. Automaton has 25854 states and 85319 transitions. Word has length 134 [2022-03-03 17:07:43,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:43,229 INFO L470 AbstractCegarLoop]: Abstraction has 25854 states and 85319 transitions. [2022-03-03 17:07:43,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:43,229 INFO L276 IsEmpty]: Start isEmpty. Operand 25854 states and 85319 transitions. [2022-03-03 17:07:43,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:43,276 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:43,276 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:43,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-03 17:07:43,276 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:43,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:43,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1489755362, now seen corresponding path program 26 times [2022-03-03 17:07:43,277 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:43,277 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692321968] [2022-03-03 17:07:43,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:43,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:43,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:43,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:43,322 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:43,323 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692321968] [2022-03-03 17:07:43,323 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692321968] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:43,323 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:43,323 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 17:07:43,323 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489348005] [2022-03-03 17:07:43,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:43,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 17:07:43,324 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:43,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 17:07:43,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 17:07:43,324 INFO L87 Difference]: Start difference. First operand 25854 states and 85319 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:43,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:43,504 INFO L93 Difference]: Finished difference Result 24978 states and 81246 transitions. [2022-03-03 17:07:43,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 17:07:43,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:43,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:43,575 INFO L225 Difference]: With dead ends: 24978 [2022-03-03 17:07:43,575 INFO L226 Difference]: Without dead ends: 24978 [2022-03-03 17:07:43,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 17:07:43,576 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 35 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:43,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 233 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 17:07:43,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24978 states. [2022-03-03 17:07:44,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24978 to 24978. [2022-03-03 17:07:44,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24978 states, 24977 states have (on average 3.2528326059975177) internal successors, (81246), 24977 states have internal predecessors, (81246), 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) [2022-03-03 17:07:44,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24978 states to 24978 states and 81246 transitions. [2022-03-03 17:07:44,164 INFO L78 Accepts]: Start accepts. Automaton has 24978 states and 81246 transitions. Word has length 134 [2022-03-03 17:07:44,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:44,164 INFO L470 AbstractCegarLoop]: Abstraction has 24978 states and 81246 transitions. [2022-03-03 17:07:44,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:44,164 INFO L276 IsEmpty]: Start isEmpty. Operand 24978 states and 81246 transitions. [2022-03-03 17:07:44,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:44,208 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:44,209 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:44,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-03 17:07:44,209 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:44,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:44,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1807242936, now seen corresponding path program 27 times [2022-03-03 17:07:44,209 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:44,210 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954853486] [2022-03-03 17:07:44,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:44,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:44,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:44,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:44,362 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:44,362 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954853486] [2022-03-03 17:07:44,362 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954853486] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:44,362 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:44,362 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 17:07:44,362 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031651018] [2022-03-03 17:07:44,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:44,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 17:07:44,363 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:44,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 17:07:44,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-03-03 17:07:44,364 INFO L87 Difference]: Start difference. First operand 24978 states and 81246 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:44,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:44,961 INFO L93 Difference]: Finished difference Result 30611 states and 99772 transitions. [2022-03-03 17:07:44,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 17:07:44,961 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:44,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:45,031 INFO L225 Difference]: With dead ends: 30611 [2022-03-03 17:07:45,031 INFO L226 Difference]: Without dead ends: 29699 [2022-03-03 17:07:45,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:07:45,032 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 287 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:45,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [287 Valid, 687 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:07:45,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29699 states. [2022-03-03 17:07:45,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29699 to 22980. [2022-03-03 17:07:45,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22980 states, 22979 states have (on average 3.2678967753165935) internal successors, (75093), 22979 states have internal predecessors, (75093), 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) [2022-03-03 17:07:45,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22980 states to 22980 states and 75093 transitions. [2022-03-03 17:07:45,586 INFO L78 Accepts]: Start accepts. Automaton has 22980 states and 75093 transitions. Word has length 134 [2022-03-03 17:07:45,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:45,586 INFO L470 AbstractCegarLoop]: Abstraction has 22980 states and 75093 transitions. [2022-03-03 17:07:45,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:45,586 INFO L276 IsEmpty]: Start isEmpty. Operand 22980 states and 75093 transitions. [2022-03-03 17:07:45,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:45,621 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:45,621 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:45,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-03 17:07:45,622 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:45,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:45,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1713655916, now seen corresponding path program 28 times [2022-03-03 17:07:45,622 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:45,622 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101345499] [2022-03-03 17:07:45,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:45,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:45,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:45,787 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:45,787 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101345499] [2022-03-03 17:07:45,787 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101345499] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:45,787 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:45,788 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 17:07:45,788 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490622036] [2022-03-03 17:07:45,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:45,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 17:07:45,788 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:45,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 17:07:45,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:07:45,789 INFO L87 Difference]: Start difference. First operand 22980 states and 75093 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:46,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:46,283 INFO L93 Difference]: Finished difference Result 28084 states and 91347 transitions. [2022-03-03 17:07:46,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-03 17:07:46,284 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:46,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:46,358 INFO L225 Difference]: With dead ends: 28084 [2022-03-03 17:07:46,358 INFO L226 Difference]: Without dead ends: 27466 [2022-03-03 17:07:46,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-03-03 17:07:46,359 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 441 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:46,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [441 Valid, 845 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:07:46,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27466 states. [2022-03-03 17:07:46,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27466 to 22874. [2022-03-03 17:07:46,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22874 states, 22873 states have (on average 3.265771870764657) internal successors, (74698), 22873 states have internal predecessors, (74698), 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) [2022-03-03 17:07:46,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22874 states to 22874 states and 74698 transitions. [2022-03-03 17:07:46,977 INFO L78 Accepts]: Start accepts. Automaton has 22874 states and 74698 transitions. Word has length 134 [2022-03-03 17:07:46,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:46,977 INFO L470 AbstractCegarLoop]: Abstraction has 22874 states and 74698 transitions. [2022-03-03 17:07:46,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:46,977 INFO L276 IsEmpty]: Start isEmpty. Operand 22874 states and 74698 transitions. [2022-03-03 17:07:47,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:47,013 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:47,013 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:47,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-03 17:07:47,013 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:47,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:47,014 INFO L85 PathProgramCache]: Analyzing trace with hash 523103092, now seen corresponding path program 29 times [2022-03-03 17:07:47,014 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:47,014 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154983207] [2022-03-03 17:07:47,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:47,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:47,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:47,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:47,368 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:47,368 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154983207] [2022-03-03 17:07:47,368 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154983207] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:47,368 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:47,368 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 17:07:47,368 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643648065] [2022-03-03 17:07:47,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:47,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 17:07:47,369 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:47,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 17:07:47,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-03-03 17:07:47,369 INFO L87 Difference]: Start difference. First operand 22874 states and 74698 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:47,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:47,673 INFO L93 Difference]: Finished difference Result 27731 states and 89486 transitions. [2022-03-03 17:07:47,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 17:07:47,674 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:47,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:47,732 INFO L225 Difference]: With dead ends: 27731 [2022-03-03 17:07:47,732 INFO L226 Difference]: Without dead ends: 26014 [2022-03-03 17:07:47,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:07:47,733 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 187 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:47,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 849 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:07:47,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26014 states. [2022-03-03 17:07:48,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26014 to 24338. [2022-03-03 17:07:48,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24338 states, 24337 states have (on average 3.2499486378764844) internal successors, (79094), 24337 states have internal predecessors, (79094), 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) [2022-03-03 17:07:48,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24338 states to 24338 states and 79094 transitions. [2022-03-03 17:07:48,273 INFO L78 Accepts]: Start accepts. Automaton has 24338 states and 79094 transitions. Word has length 134 [2022-03-03 17:07:48,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:48,273 INFO L470 AbstractCegarLoop]: Abstraction has 24338 states and 79094 transitions. [2022-03-03 17:07:48,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:48,274 INFO L276 IsEmpty]: Start isEmpty. Operand 24338 states and 79094 transitions. [2022-03-03 17:07:48,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:48,310 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:48,310 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:48,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-03 17:07:48,311 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:48,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:48,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1255525630, now seen corresponding path program 30 times [2022-03-03 17:07:48,311 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:48,311 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610826984] [2022-03-03 17:07:48,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:48,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:48,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:48,460 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:48,460 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610826984] [2022-03-03 17:07:48,460 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610826984] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:48,460 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:48,460 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 17:07:48,461 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056466306] [2022-03-03 17:07:48,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:48,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 17:07:48,461 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:48,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 17:07:48,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-03-03 17:07:48,461 INFO L87 Difference]: Start difference. First operand 24338 states and 79094 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:48,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:48,799 INFO L93 Difference]: Finished difference Result 33574 states and 109211 transitions. [2022-03-03 17:07:48,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 17:07:48,799 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:48,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:49,049 INFO L225 Difference]: With dead ends: 33574 [2022-03-03 17:07:49,049 INFO L226 Difference]: Without dead ends: 32310 [2022-03-03 17:07:49,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:07:49,050 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 214 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:49,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 775 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:07:49,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32310 states. [2022-03-03 17:07:49,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32310 to 23290. [2022-03-03 17:07:49,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23290 states, 23289 states have (on average 3.250504530035639) internal successors, (75701), 23289 states have internal predecessors, (75701), 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) [2022-03-03 17:07:49,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23290 states to 23290 states and 75701 transitions. [2022-03-03 17:07:49,459 INFO L78 Accepts]: Start accepts. Automaton has 23290 states and 75701 transitions. Word has length 134 [2022-03-03 17:07:49,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:49,459 INFO L470 AbstractCegarLoop]: Abstraction has 23290 states and 75701 transitions. [2022-03-03 17:07:49,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:49,459 INFO L276 IsEmpty]: Start isEmpty. Operand 23290 states and 75701 transitions. [2022-03-03 17:07:49,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:49,693 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:49,693 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:49,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-03 17:07:49,693 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:49,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:49,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1988824622, now seen corresponding path program 31 times [2022-03-03 17:07:49,694 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:49,694 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191141348] [2022-03-03 17:07:49,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:49,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:49,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:49,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:49,896 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:49,896 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191141348] [2022-03-03 17:07:49,896 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191141348] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:49,896 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:49,897 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 17:07:49,897 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766233471] [2022-03-03 17:07:49,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:49,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 17:07:49,897 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:49,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 17:07:49,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-03-03 17:07:49,898 INFO L87 Difference]: Start difference. First operand 23290 states and 75701 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:50,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:50,259 INFO L93 Difference]: Finished difference Result 24294 states and 78706 transitions. [2022-03-03 17:07:50,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 17:07:50,260 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:50,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:50,319 INFO L225 Difference]: With dead ends: 24294 [2022-03-03 17:07:50,319 INFO L226 Difference]: Without dead ends: 23978 [2022-03-03 17:07:50,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:07:50,319 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 145 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:50,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 879 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:07:50,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23978 states. [2022-03-03 17:07:50,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23978 to 23302. [2022-03-03 17:07:50,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23302 states, 23301 states have (on average 3.249088021973306) internal successors, (75707), 23301 states have internal predecessors, (75707), 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) [2022-03-03 17:07:50,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23302 states to 23302 states and 75707 transitions. [2022-03-03 17:07:50,830 INFO L78 Accepts]: Start accepts. Automaton has 23302 states and 75707 transitions. Word has length 134 [2022-03-03 17:07:50,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:50,830 INFO L470 AbstractCegarLoop]: Abstraction has 23302 states and 75707 transitions. [2022-03-03 17:07:50,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:50,830 INFO L276 IsEmpty]: Start isEmpty. Operand 23302 states and 75707 transitions. [2022-03-03 17:07:50,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:50,876 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:50,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:50,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-03 17:07:50,876 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:50,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:50,877 INFO L85 PathProgramCache]: Analyzing trace with hash 124516400, now seen corresponding path program 32 times [2022-03-03 17:07:50,877 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:50,877 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562051475] [2022-03-03 17:07:50,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:50,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:50,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:51,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:51,012 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:51,012 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562051475] [2022-03-03 17:07:51,013 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562051475] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:51,013 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:51,013 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 17:07:51,013 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133252161] [2022-03-03 17:07:51,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:51,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 17:07:51,013 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:51,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 17:07:51,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-03-03 17:07:51,014 INFO L87 Difference]: Start difference. First operand 23302 states and 75707 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:51,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:51,266 INFO L93 Difference]: Finished difference Result 24794 states and 80118 transitions. [2022-03-03 17:07:51,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 17:07:51,266 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:51,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:51,323 INFO L225 Difference]: With dead ends: 24794 [2022-03-03 17:07:51,324 INFO L226 Difference]: Without dead ends: 24794 [2022-03-03 17:07:51,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:07:51,324 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 202 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:51,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 681 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:07:51,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24794 states. [2022-03-03 17:07:51,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24794 to 23602. [2022-03-03 17:07:51,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23602 states, 23601 states have (on average 3.24376085759078) internal successors, (76556), 23601 states have internal predecessors, (76556), 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) [2022-03-03 17:07:51,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23602 states to 23602 states and 76556 transitions. [2022-03-03 17:07:51,889 INFO L78 Accepts]: Start accepts. Automaton has 23602 states and 76556 transitions. Word has length 134 [2022-03-03 17:07:51,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:51,890 INFO L470 AbstractCegarLoop]: Abstraction has 23602 states and 76556 transitions. [2022-03-03 17:07:51,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:51,890 INFO L276 IsEmpty]: Start isEmpty. Operand 23602 states and 76556 transitions. [2022-03-03 17:07:51,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:51,927 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:51,927 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:51,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-03 17:07:51,928 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:51,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:51,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1304860150, now seen corresponding path program 33 times [2022-03-03 17:07:51,928 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:51,928 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840014227] [2022-03-03 17:07:51,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:51,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:51,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:52,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:52,025 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:52,025 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840014227] [2022-03-03 17:07:52,025 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840014227] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:52,025 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:52,025 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 17:07:52,025 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130875388] [2022-03-03 17:07:52,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:52,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 17:07:52,026 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:52,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 17:07:52,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-03-03 17:07:52,026 INFO L87 Difference]: Start difference. First operand 23602 states and 76556 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:52,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:52,495 INFO L93 Difference]: Finished difference Result 25649 states and 82334 transitions. [2022-03-03 17:07:52,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-03 17:07:52,495 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:52,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:52,545 INFO L225 Difference]: With dead ends: 25649 [2022-03-03 17:07:52,545 INFO L226 Difference]: Without dead ends: 22817 [2022-03-03 17:07:52,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:07:52,546 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 396 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:52,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 690 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:07:52,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22817 states. [2022-03-03 17:07:52,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22817 to 18664. [2022-03-03 17:07:52,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18664 states, 18663 states have (on average 3.2176498955151907) internal successors, (60051), 18663 states have internal predecessors, (60051), 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) [2022-03-03 17:07:52,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18664 states to 18664 states and 60051 transitions. [2022-03-03 17:07:52,904 INFO L78 Accepts]: Start accepts. Automaton has 18664 states and 60051 transitions. Word has length 134 [2022-03-03 17:07:52,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:52,904 INFO L470 AbstractCegarLoop]: Abstraction has 18664 states and 60051 transitions. [2022-03-03 17:07:52,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:52,904 INFO L276 IsEmpty]: Start isEmpty. Operand 18664 states and 60051 transitions. [2022-03-03 17:07:53,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:53,036 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:53,036 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:53,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-03 17:07:53,036 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:53,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:53,037 INFO L85 PathProgramCache]: Analyzing trace with hash -978686880, now seen corresponding path program 34 times [2022-03-03 17:07:53,037 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:53,037 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317684054] [2022-03-03 17:07:53,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:53,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:53,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:53,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:53,238 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:53,238 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317684054] [2022-03-03 17:07:53,238 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317684054] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:53,238 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:53,238 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:07:53,239 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503117296] [2022-03-03 17:07:53,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:53,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:07:53,239 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:53,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:07:53,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:07:53,240 INFO L87 Difference]: Start difference. First operand 18664 states and 60051 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:53,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:53,573 INFO L93 Difference]: Finished difference Result 19784 states and 63438 transitions. [2022-03-03 17:07:53,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-03 17:07:53,574 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:53,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:53,616 INFO L225 Difference]: With dead ends: 19784 [2022-03-03 17:07:53,617 INFO L226 Difference]: Without dead ends: 19112 [2022-03-03 17:07:53,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:07:53,617 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 244 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:53,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 874 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:07:53,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19112 states. [2022-03-03 17:07:53,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19112 to 18608. [2022-03-03 17:07:53,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18608 states, 18607 states have (on average 3.216047723974848) internal successors, (59841), 18607 states have internal predecessors, (59841), 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) [2022-03-03 17:07:54,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18608 states to 18608 states and 59841 transitions. [2022-03-03 17:07:54,095 INFO L78 Accepts]: Start accepts. Automaton has 18608 states and 59841 transitions. Word has length 134 [2022-03-03 17:07:54,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:54,095 INFO L470 AbstractCegarLoop]: Abstraction has 18608 states and 59841 transitions. [2022-03-03 17:07:54,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:54,096 INFO L276 IsEmpty]: Start isEmpty. Operand 18608 states and 59841 transitions. [2022-03-03 17:07:54,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:54,126 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:54,126 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:54,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-03 17:07:54,126 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:54,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:54,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1793566766, now seen corresponding path program 35 times [2022-03-03 17:07:54,127 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:54,127 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552010559] [2022-03-03 17:07:54,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:54,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:54,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:54,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:54,330 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:54,330 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552010559] [2022-03-03 17:07:54,330 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552010559] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:54,330 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:54,330 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:07:54,330 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726734017] [2022-03-03 17:07:54,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:54,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:07:54,331 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:54,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:07:54,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:07:54,331 INFO L87 Difference]: Start difference. First operand 18608 states and 59841 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:54,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:54,651 INFO L93 Difference]: Finished difference Result 18608 states and 59817 transitions. [2022-03-03 17:07:54,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 17:07:54,651 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:54,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:54,687 INFO L225 Difference]: With dead ends: 18608 [2022-03-03 17:07:54,687 INFO L226 Difference]: Without dead ends: 18162 [2022-03-03 17:07:54,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:07:54,688 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 121 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:54,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 1160 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:07:54,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18162 states. [2022-03-03 17:07:55,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18162 to 18162. [2022-03-03 17:07:55,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18162 states, 18161 states have (on average 3.2267496283244315) internal successors, (58601), 18161 states have internal predecessors, (58601), 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) [2022-03-03 17:07:55,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18162 states to 18162 states and 58601 transitions. [2022-03-03 17:07:55,113 INFO L78 Accepts]: Start accepts. Automaton has 18162 states and 58601 transitions. Word has length 134 [2022-03-03 17:07:55,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:55,113 INFO L470 AbstractCegarLoop]: Abstraction has 18162 states and 58601 transitions. [2022-03-03 17:07:55,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:55,113 INFO L276 IsEmpty]: Start isEmpty. Operand 18162 states and 58601 transitions. [2022-03-03 17:07:55,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:55,141 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:55,141 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:55,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-03 17:07:55,141 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:55,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:55,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1761556582, now seen corresponding path program 36 times [2022-03-03 17:07:55,142 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:55,142 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031333936] [2022-03-03 17:07:55,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:55,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:55,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:55,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:55,259 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:55,259 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031333936] [2022-03-03 17:07:55,260 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031333936] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:55,260 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:55,260 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:07:55,260 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591000430] [2022-03-03 17:07:55,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:55,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:07:55,260 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:55,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:07:55,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:07:55,261 INFO L87 Difference]: Start difference. First operand 18162 states and 58601 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:55,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:55,656 INFO L93 Difference]: Finished difference Result 26369 states and 84308 transitions. [2022-03-03 17:07:55,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 17:07:55,656 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:55,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:55,714 INFO L225 Difference]: With dead ends: 26369 [2022-03-03 17:07:55,714 INFO L226 Difference]: Without dead ends: 26369 [2022-03-03 17:07:55,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-03-03 17:07:55,715 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 498 mSDsluCounter, 994 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:55,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [498 Valid, 1034 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:07:55,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26369 states. [2022-03-03 17:07:56,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26369 to 20254. [2022-03-03 17:07:56,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20254 states, 20253 states have (on average 3.217301140571767) internal successors, (65160), 20253 states have internal predecessors, (65160), 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) [2022-03-03 17:07:56,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20254 states to 20254 states and 65160 transitions. [2022-03-03 17:07:56,209 INFO L78 Accepts]: Start accepts. Automaton has 20254 states and 65160 transitions. Word has length 134 [2022-03-03 17:07:56,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:56,209 INFO L470 AbstractCegarLoop]: Abstraction has 20254 states and 65160 transitions. [2022-03-03 17:07:56,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:56,209 INFO L276 IsEmpty]: Start isEmpty. Operand 20254 states and 65160 transitions. [2022-03-03 17:07:56,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:56,240 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:56,240 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:56,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-03 17:07:56,241 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:56,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:56,241 INFO L85 PathProgramCache]: Analyzing trace with hash 2137391804, now seen corresponding path program 37 times [2022-03-03 17:07:56,241 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:56,241 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335984779] [2022-03-03 17:07:56,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:56,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:56,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:56,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:56,384 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:56,384 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335984779] [2022-03-03 17:07:56,384 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335984779] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:56,384 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:56,384 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-03 17:07:56,384 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239760621] [2022-03-03 17:07:56,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:56,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-03 17:07:56,385 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:56,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-03 17:07:56,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-03-03 17:07:56,385 INFO L87 Difference]: Start difference. First operand 20254 states and 65160 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:57,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:57,150 INFO L93 Difference]: Finished difference Result 26312 states and 83919 transitions. [2022-03-03 17:07:57,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-03 17:07:57,150 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:57,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:57,209 INFO L225 Difference]: With dead ends: 26312 [2022-03-03 17:07:57,209 INFO L226 Difference]: Without dead ends: 23423 [2022-03-03 17:07:57,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:07:57,210 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 580 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 1795 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:57,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [580 Valid, 1795 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:07:57,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23423 states. [2022-03-03 17:07:57,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23423 to 19011. [2022-03-03 17:07:57,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19011 states, 19010 states have (on average 3.2016833245660177) internal successors, (60864), 19010 states have internal predecessors, (60864), 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) [2022-03-03 17:07:57,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19011 states to 19011 states and 60864 transitions. [2022-03-03 17:07:57,516 INFO L78 Accepts]: Start accepts. Automaton has 19011 states and 60864 transitions. Word has length 134 [2022-03-03 17:07:57,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:57,516 INFO L470 AbstractCegarLoop]: Abstraction has 19011 states and 60864 transitions. [2022-03-03 17:07:57,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:57,516 INFO L276 IsEmpty]: Start isEmpty. Operand 19011 states and 60864 transitions. [2022-03-03 17:07:57,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:57,545 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:57,545 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:57,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-03 17:07:57,545 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:57,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:57,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1363187750, now seen corresponding path program 38 times [2022-03-03 17:07:57,545 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:57,545 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531000341] [2022-03-03 17:07:57,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:57,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:57,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:57,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:57,683 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:57,684 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531000341] [2022-03-03 17:07:57,684 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531000341] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:57,684 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:57,684 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 17:07:57,684 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848735070] [2022-03-03 17:07:57,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:57,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 17:07:57,684 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:57,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 17:07:57,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:07:57,685 INFO L87 Difference]: Start difference. First operand 19011 states and 60864 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:58,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:58,235 INFO L93 Difference]: Finished difference Result 23691 states and 75049 transitions. [2022-03-03 17:07:58,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-03 17:07:58,235 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:58,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:58,297 INFO L225 Difference]: With dead ends: 23691 [2022-03-03 17:07:58,298 INFO L226 Difference]: Without dead ends: 22699 [2022-03-03 17:07:58,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=108, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:07:58,298 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 406 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:58,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [406 Valid, 829 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:07:58,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22699 states. [2022-03-03 17:07:58,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22699 to 19667. [2022-03-03 17:07:58,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19667 states, 19666 states have (on average 3.194294721854978) internal successors, (62819), 19666 states have internal predecessors, (62819), 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) [2022-03-03 17:07:58,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19667 states to 19667 states and 62819 transitions. [2022-03-03 17:07:58,900 INFO L78 Accepts]: Start accepts. Automaton has 19667 states and 62819 transitions. Word has length 134 [2022-03-03 17:07:58,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:58,900 INFO L470 AbstractCegarLoop]: Abstraction has 19667 states and 62819 transitions. [2022-03-03 17:07:58,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:58,900 INFO L276 IsEmpty]: Start isEmpty. Operand 19667 states and 62819 transitions. [2022-03-03 17:07:58,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:07:58,932 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:58,933 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:58,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-03 17:07:58,933 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:07:58,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:58,933 INFO L85 PathProgramCache]: Analyzing trace with hash 742725574, now seen corresponding path program 39 times [2022-03-03 17:07:58,933 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:58,934 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362275463] [2022-03-03 17:07:58,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:58,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:58,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:59,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:59,189 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:59,189 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362275463] [2022-03-03 17:07:59,189 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362275463] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:59,189 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:59,189 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:07:59,190 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102991646] [2022-03-03 17:07:59,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:59,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:07:59,190 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:59,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:07:59,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:07:59,191 INFO L87 Difference]: Start difference. First operand 19667 states and 62819 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:59,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:59,552 INFO L93 Difference]: Finished difference Result 24596 states and 78113 transitions. [2022-03-03 17:07:59,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 17:07:59,553 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:07:59,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:59,601 INFO L225 Difference]: With dead ends: 24596 [2022-03-03 17:07:59,601 INFO L226 Difference]: Without dead ends: 24370 [2022-03-03 17:07:59,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:07:59,602 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 239 mSDsluCounter, 994 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:59,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 1000 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:07:59,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24370 states. [2022-03-03 17:07:59,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24370 to 19489. [2022-03-03 17:07:59,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19489 states, 19488 states have (on average 3.194376026272578) internal successors, (62252), 19488 states have internal predecessors, (62252), 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) [2022-03-03 17:08:00,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19489 states to 19489 states and 62252 transitions. [2022-03-03 17:08:00,042 INFO L78 Accepts]: Start accepts. Automaton has 19489 states and 62252 transitions. Word has length 134 [2022-03-03 17:08:00,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:00,042 INFO L470 AbstractCegarLoop]: Abstraction has 19489 states and 62252 transitions. [2022-03-03 17:08:00,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:00,043 INFO L276 IsEmpty]: Start isEmpty. Operand 19489 states and 62252 transitions. [2022-03-03 17:08:00,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:00,072 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:00,072 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:00,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-03 17:08:00,072 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:00,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:00,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1740413454, now seen corresponding path program 40 times [2022-03-03 17:08:00,073 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:00,073 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332260858] [2022-03-03 17:08:00,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:00,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:00,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:00,209 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:00,209 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332260858] [2022-03-03 17:08:00,209 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332260858] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:00,209 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:00,209 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-03 17:08:00,209 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379359000] [2022-03-03 17:08:00,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:00,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-03 17:08:00,210 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:00,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-03 17:08:00,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-03-03 17:08:00,210 INFO L87 Difference]: Start difference. First operand 19489 states and 62252 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:00,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:00,756 INFO L93 Difference]: Finished difference Result 23586 states and 74814 transitions. [2022-03-03 17:08:00,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-03 17:08:00,757 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:00,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:00,800 INFO L225 Difference]: With dead ends: 23586 [2022-03-03 17:08:00,800 INFO L226 Difference]: Without dead ends: 20844 [2022-03-03 17:08:00,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:08:00,801 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 529 mSDsluCounter, 2296 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 1854 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:00,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [529 Valid, 1854 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:08:00,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20844 states. [2022-03-03 17:08:01,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20844 to 17613. [2022-03-03 17:08:01,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17613 states, 17612 states have (on average 3.18947308653191) internal successors, (56173), 17612 states have internal predecessors, (56173), 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) [2022-03-03 17:08:01,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17613 states to 17613 states and 56173 transitions. [2022-03-03 17:08:01,233 INFO L78 Accepts]: Start accepts. Automaton has 17613 states and 56173 transitions. Word has length 134 [2022-03-03 17:08:01,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:01,233 INFO L470 AbstractCegarLoop]: Abstraction has 17613 states and 56173 transitions. [2022-03-03 17:08:01,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:01,233 INFO L276 IsEmpty]: Start isEmpty. Operand 17613 states and 56173 transitions. [2022-03-03 17:08:01,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:01,261 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:01,261 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:01,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-03 17:08:01,262 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:01,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:01,262 INFO L85 PathProgramCache]: Analyzing trace with hash 2014749652, now seen corresponding path program 41 times [2022-03-03 17:08:01,262 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:01,262 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264769723] [2022-03-03 17:08:01,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:01,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:01,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:01,448 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:01,448 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264769723] [2022-03-03 17:08:01,448 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264769723] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:01,448 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:01,448 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-03 17:08:01,448 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441251593] [2022-03-03 17:08:01,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:01,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-03 17:08:01,448 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:01,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-03 17:08:01,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:08:01,449 INFO L87 Difference]: Start difference. First operand 17613 states and 56173 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:01,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:01,882 INFO L93 Difference]: Finished difference Result 18847 states and 59877 transitions. [2022-03-03 17:08:01,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-03 17:08:01,882 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:01,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:01,920 INFO L225 Difference]: With dead ends: 18847 [2022-03-03 17:08:01,920 INFO L226 Difference]: Without dead ends: 18847 [2022-03-03 17:08:01,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-03-03 17:08:01,920 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 259 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 1371 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:01,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 1371 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:08:01,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18847 states. [2022-03-03 17:08:02,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18847 to 18105. [2022-03-03 17:08:02,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18105 states, 18104 states have (on average 3.1841581970835175) internal successors, (57646), 18104 states have internal predecessors, (57646), 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) [2022-03-03 17:08:02,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18105 states to 18105 states and 57646 transitions. [2022-03-03 17:08:02,335 INFO L78 Accepts]: Start accepts. Automaton has 18105 states and 57646 transitions. Word has length 134 [2022-03-03 17:08:02,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:02,335 INFO L470 AbstractCegarLoop]: Abstraction has 18105 states and 57646 transitions. [2022-03-03 17:08:02,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:02,335 INFO L276 IsEmpty]: Start isEmpty. Operand 18105 states and 57646 transitions. [2022-03-03 17:08:02,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:02,363 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:02,364 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:02,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-03 17:08:02,364 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:02,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:02,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1796426514, now seen corresponding path program 42 times [2022-03-03 17:08:02,364 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:02,364 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345921195] [2022-03-03 17:08:02,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:02,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:02,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:02,494 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:02,494 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345921195] [2022-03-03 17:08:02,494 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345921195] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:02,494 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:02,494 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-03 17:08:02,494 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017050662] [2022-03-03 17:08:02,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:02,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-03 17:08:02,494 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:02,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-03 17:08:02,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-03-03 17:08:02,495 INFO L87 Difference]: Start difference. First operand 18105 states and 57646 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:03,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:03,169 INFO L93 Difference]: Finished difference Result 22859 states and 72285 transitions. [2022-03-03 17:08:03,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-03 17:08:03,170 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:03,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:03,221 INFO L225 Difference]: With dead ends: 22859 [2022-03-03 17:08:03,222 INFO L226 Difference]: Without dead ends: 20024 [2022-03-03 17:08:03,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:08:03,222 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 486 mSDsluCounter, 2464 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 1972 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:03,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [486 Valid, 1972 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:08:03,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20024 states. [2022-03-03 17:08:03,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20024 to 16805. [2022-03-03 17:08:03,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16805 states, 16804 states have (on average 3.161092597000714) internal successors, (53119), 16804 states have internal predecessors, (53119), 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) [2022-03-03 17:08:03,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16805 states to 16805 states and 53119 transitions. [2022-03-03 17:08:03,490 INFO L78 Accepts]: Start accepts. Automaton has 16805 states and 53119 transitions. Word has length 134 [2022-03-03 17:08:03,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:03,490 INFO L470 AbstractCegarLoop]: Abstraction has 16805 states and 53119 transitions. [2022-03-03 17:08:03,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:03,490 INFO L276 IsEmpty]: Start isEmpty. Operand 16805 states and 53119 transitions. [2022-03-03 17:08:03,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:03,515 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:03,515 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:03,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-03 17:08:03,516 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:03,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:03,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1945088598, now seen corresponding path program 43 times [2022-03-03 17:08:03,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:03,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40236066] [2022-03-03 17:08:03,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:03,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:03,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:03,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:03,713 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:03,713 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40236066] [2022-03-03 17:08:03,713 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40236066] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:03,713 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:03,713 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 17:08:03,713 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252057640] [2022-03-03 17:08:03,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:03,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 17:08:03,714 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:03,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 17:08:03,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:08:03,714 INFO L87 Difference]: Start difference. First operand 16805 states and 53119 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:04,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:04,181 INFO L93 Difference]: Finished difference Result 17813 states and 56095 transitions. [2022-03-03 17:08:04,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-03 17:08:04,182 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:04,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:04,214 INFO L225 Difference]: With dead ends: 17813 [2022-03-03 17:08:04,215 INFO L226 Difference]: Without dead ends: 17201 [2022-03-03 17:08:04,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:08:04,215 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 202 mSDsluCounter, 1051 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:04,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 1069 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:08:04,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17201 states. [2022-03-03 17:08:04,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17201 to 16849. [2022-03-03 17:08:04,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16849 states, 16848 states have (on average 3.158594491927825) internal successors, (53216), 16848 states have internal predecessors, (53216), 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) [2022-03-03 17:08:04,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16849 states to 16849 states and 53216 transitions. [2022-03-03 17:08:04,487 INFO L78 Accepts]: Start accepts. Automaton has 16849 states and 53216 transitions. Word has length 134 [2022-03-03 17:08:04,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:04,487 INFO L470 AbstractCegarLoop]: Abstraction has 16849 states and 53216 transitions. [2022-03-03 17:08:04,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:04,487 INFO L276 IsEmpty]: Start isEmpty. Operand 16849 states and 53216 transitions. [2022-03-03 17:08:04,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:04,515 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:04,515 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:04,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-03 17:08:04,515 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:04,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:04,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1618028618, now seen corresponding path program 44 times [2022-03-03 17:08:04,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:04,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832896165] [2022-03-03 17:08:04,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:04,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:04,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:04,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:04,728 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:04,728 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832896165] [2022-03-03 17:08:04,728 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832896165] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:04,728 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:04,729 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 17:08:04,729 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320819204] [2022-03-03 17:08:04,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:04,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 17:08:04,729 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:04,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 17:08:04,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:08:04,730 INFO L87 Difference]: Start difference. First operand 16849 states and 53216 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:05,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:05,173 INFO L93 Difference]: Finished difference Result 17497 states and 55090 transitions. [2022-03-03 17:08:05,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-03 17:08:05,173 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:05,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:05,216 INFO L225 Difference]: With dead ends: 17497 [2022-03-03 17:08:05,217 INFO L226 Difference]: Without dead ends: 16833 [2022-03-03 17:08:05,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:08:05,217 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 183 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:05,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 930 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:08:05,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16833 states. [2022-03-03 17:08:05,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16833 to 16797. [2022-03-03 17:08:05,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16797 states, 16796 states have (on average 3.1593831864729696) internal successors, (53065), 16796 states have internal predecessors, (53065), 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) [2022-03-03 17:08:05,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16797 states to 16797 states and 53065 transitions. [2022-03-03 17:08:05,491 INFO L78 Accepts]: Start accepts. Automaton has 16797 states and 53065 transitions. Word has length 134 [2022-03-03 17:08:05,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:05,491 INFO L470 AbstractCegarLoop]: Abstraction has 16797 states and 53065 transitions. [2022-03-03 17:08:05,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:05,491 INFO L276 IsEmpty]: Start isEmpty. Operand 16797 states and 53065 transitions. [2022-03-03 17:08:05,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:05,516 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:05,516 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:05,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-03 17:08:05,517 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:05,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:05,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1215762510, now seen corresponding path program 45 times [2022-03-03 17:08:05,517 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:05,517 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105432726] [2022-03-03 17:08:05,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:05,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:05,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:05,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:05,700 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:05,700 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105432726] [2022-03-03 17:08:05,701 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105432726] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:05,701 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:05,701 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-03 17:08:05,701 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962772455] [2022-03-03 17:08:05,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:05,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-03 17:08:05,701 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:05,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-03 17:08:05,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:08:05,702 INFO L87 Difference]: Start difference. First operand 16797 states and 53065 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:06,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:06,210 INFO L93 Difference]: Finished difference Result 20151 states and 63227 transitions. [2022-03-03 17:08:06,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 17:08:06,210 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:06,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:06,352 INFO L225 Difference]: With dead ends: 20151 [2022-03-03 17:08:06,353 INFO L226 Difference]: Without dead ends: 20151 [2022-03-03 17:08:06,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2022-03-03 17:08:06,353 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 298 mSDsluCounter, 1314 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:06,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 1308 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:08:06,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20151 states. [2022-03-03 17:08:06,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20151 to 17161. [2022-03-03 17:08:06,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17161 states, 17160 states have (on average 3.155827505827506) internal successors, (54154), 17160 states have internal predecessors, (54154), 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) [2022-03-03 17:08:06,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17161 states to 17161 states and 54154 transitions. [2022-03-03 17:08:06,606 INFO L78 Accepts]: Start accepts. Automaton has 17161 states and 54154 transitions. Word has length 134 [2022-03-03 17:08:06,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:06,607 INFO L470 AbstractCegarLoop]: Abstraction has 17161 states and 54154 transitions. [2022-03-03 17:08:06,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:06,607 INFO L276 IsEmpty]: Start isEmpty. Operand 17161 states and 54154 transitions. [2022-03-03 17:08:06,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:06,632 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:06,632 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:06,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-03 17:08:06,633 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:06,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:06,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1883384880, now seen corresponding path program 46 times [2022-03-03 17:08:06,633 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:06,633 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936565692] [2022-03-03 17:08:06,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:06,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:06,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:06,825 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:06,825 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936565692] [2022-03-03 17:08:06,825 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936565692] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:06,825 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:06,825 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 17:08:06,826 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962056131] [2022-03-03 17:08:06,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:06,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 17:08:06,826 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:06,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 17:08:06,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:08:06,827 INFO L87 Difference]: Start difference. First operand 17161 states and 54154 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:07,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:07,234 INFO L93 Difference]: Finished difference Result 18419 states and 57888 transitions. [2022-03-03 17:08:07,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-03 17:08:07,235 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:07,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:07,269 INFO L225 Difference]: With dead ends: 18419 [2022-03-03 17:08:07,269 INFO L226 Difference]: Without dead ends: 17807 [2022-03-03 17:08:07,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:08:07,269 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 175 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1233 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:07,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 1233 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:08:07,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17807 states. [2022-03-03 17:08:07,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17807 to 17173. [2022-03-03 17:08:07,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17173 states, 17172 states have (on average 3.1534474726298627) internal successors, (54151), 17172 states have internal predecessors, (54151), 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) [2022-03-03 17:08:07,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17173 states to 17173 states and 54151 transitions. [2022-03-03 17:08:07,620 INFO L78 Accepts]: Start accepts. Automaton has 17173 states and 54151 transitions. Word has length 134 [2022-03-03 17:08:07,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:07,620 INFO L470 AbstractCegarLoop]: Abstraction has 17173 states and 54151 transitions. [2022-03-03 17:08:07,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:07,620 INFO L276 IsEmpty]: Start isEmpty. Operand 17173 states and 54151 transitions. [2022-03-03 17:08:07,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:07,645 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:07,646 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:07,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-03 17:08:07,646 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:07,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:07,646 INFO L85 PathProgramCache]: Analyzing trace with hash -483912430, now seen corresponding path program 47 times [2022-03-03 17:08:07,646 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:07,646 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183598999] [2022-03-03 17:08:07,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:07,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:07,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:07,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:07,838 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:07,838 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183598999] [2022-03-03 17:08:07,838 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183598999] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:07,838 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:07,838 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-03 17:08:07,838 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058309560] [2022-03-03 17:08:07,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:07,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-03 17:08:07,838 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:07,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-03 17:08:07,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:08:07,839 INFO L87 Difference]: Start difference. First operand 17173 states and 54151 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:08,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:08,169 INFO L93 Difference]: Finished difference Result 17897 states and 56262 transitions. [2022-03-03 17:08:08,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-03 17:08:08,170 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:08,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:08,203 INFO L225 Difference]: With dead ends: 17897 [2022-03-03 17:08:08,203 INFO L226 Difference]: Without dead ends: 17241 [2022-03-03 17:08:08,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2022-03-03 17:08:08,204 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 163 mSDsluCounter, 1212 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:08,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 1227 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:08:08,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17241 states. [2022-03-03 17:08:08,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17241 to 17129. [2022-03-03 17:08:08,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17129 states, 17128 states have (on average 3.153783278841663) internal successors, (54018), 17128 states have internal predecessors, (54018), 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) [2022-03-03 17:08:08,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17129 states to 17129 states and 54018 transitions. [2022-03-03 17:08:08,563 INFO L78 Accepts]: Start accepts. Automaton has 17129 states and 54018 transitions. Word has length 134 [2022-03-03 17:08:08,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:08,563 INFO L470 AbstractCegarLoop]: Abstraction has 17129 states and 54018 transitions. [2022-03-03 17:08:08,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:08,563 INFO L276 IsEmpty]: Start isEmpty. Operand 17129 states and 54018 transitions. [2022-03-03 17:08:08,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:08,588 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:08,588 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:08,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-03 17:08:08,589 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:08,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:08,589 INFO L85 PathProgramCache]: Analyzing trace with hash -453718160, now seen corresponding path program 48 times [2022-03-03 17:08:08,589 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:08,589 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628070526] [2022-03-03 17:08:08,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:08,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:08,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:08,767 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:08,767 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628070526] [2022-03-03 17:08:08,767 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628070526] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:08,767 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:08,768 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-03 17:08:08,768 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49162678] [2022-03-03 17:08:08,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:08,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-03 17:08:08,768 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:08,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-03 17:08:08,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:08:08,769 INFO L87 Difference]: Start difference. First operand 17129 states and 54018 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:09,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:09,244 INFO L93 Difference]: Finished difference Result 18943 states and 59433 transitions. [2022-03-03 17:08:09,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-03 17:08:09,244 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:09,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:09,277 INFO L225 Difference]: With dead ends: 18943 [2022-03-03 17:08:09,277 INFO L226 Difference]: Without dead ends: 17223 [2022-03-03 17:08:09,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-03-03 17:08:09,277 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 212 mSDsluCounter, 1373 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:09,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 1312 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:08:09,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17223 states. [2022-03-03 17:08:09,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17223 to 16721. [2022-03-03 17:08:09,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16721 states, 16720 states have (on average 3.14066985645933) internal successors, (52512), 16720 states have internal predecessors, (52512), 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) [2022-03-03 17:08:09,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16721 states to 16721 states and 52512 transitions. [2022-03-03 17:08:09,637 INFO L78 Accepts]: Start accepts. Automaton has 16721 states and 52512 transitions. Word has length 134 [2022-03-03 17:08:09,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:09,637 INFO L470 AbstractCegarLoop]: Abstraction has 16721 states and 52512 transitions. [2022-03-03 17:08:09,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:09,637 INFO L276 IsEmpty]: Start isEmpty. Operand 16721 states and 52512 transitions. [2022-03-03 17:08:09,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:09,662 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:09,662 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:09,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-03 17:08:09,662 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:09,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:09,663 INFO L85 PathProgramCache]: Analyzing trace with hash 329242458, now seen corresponding path program 49 times [2022-03-03 17:08:09,663 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:09,663 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075311783] [2022-03-03 17:08:09,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:09,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:09,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:09,883 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:09,884 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075311783] [2022-03-03 17:08:09,884 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075311783] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:09,884 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:09,884 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-03 17:08:09,884 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605373962] [2022-03-03 17:08:09,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:09,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-03 17:08:09,884 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:09,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-03 17:08:09,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:08:09,885 INFO L87 Difference]: Start difference. First operand 16721 states and 52512 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:10,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:10,266 INFO L93 Difference]: Finished difference Result 14081 states and 43010 transitions. [2022-03-03 17:08:10,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 17:08:10,266 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:10,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:10,293 INFO L225 Difference]: With dead ends: 14081 [2022-03-03 17:08:10,293 INFO L226 Difference]: Without dead ends: 13917 [2022-03-03 17:08:10,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2022-03-03 17:08:10,293 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 256 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:10,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [256 Valid, 1189 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:08:10,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13917 states. [2022-03-03 17:08:10,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13917 to 13119. [2022-03-03 17:08:10,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13119 states, 13118 states have (on average 3.067998170452813) internal successors, (40246), 13118 states have internal predecessors, (40246), 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) [2022-03-03 17:08:10,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13119 states to 13119 states and 40246 transitions. [2022-03-03 17:08:10,619 INFO L78 Accepts]: Start accepts. Automaton has 13119 states and 40246 transitions. Word has length 134 [2022-03-03 17:08:10,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:10,620 INFO L470 AbstractCegarLoop]: Abstraction has 13119 states and 40246 transitions. [2022-03-03 17:08:10,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:10,620 INFO L276 IsEmpty]: Start isEmpty. Operand 13119 states and 40246 transitions. [2022-03-03 17:08:10,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:10,640 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:10,640 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:10,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-03 17:08:10,640 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:10,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:10,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1531844724, now seen corresponding path program 50 times [2022-03-03 17:08:10,641 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:10,641 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310774991] [2022-03-03 17:08:10,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:10,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:10,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:10,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:10,812 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:10,812 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310774991] [2022-03-03 17:08:10,812 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310774991] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:10,812 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:10,812 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 17:08:10,812 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483005443] [2022-03-03 17:08:10,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:10,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 17:08:10,813 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:10,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 17:08:10,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-03-03 17:08:10,813 INFO L87 Difference]: Start difference. First operand 13119 states and 40246 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:11,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:11,038 INFO L93 Difference]: Finished difference Result 11714 states and 35377 transitions. [2022-03-03 17:08:11,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 17:08:11,039 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:11,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:11,059 INFO L225 Difference]: With dead ends: 11714 [2022-03-03 17:08:11,060 INFO L226 Difference]: Without dead ends: 11252 [2022-03-03 17:08:11,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:08:11,060 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 137 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:11,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 766 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:08:11,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11252 states. [2022-03-03 17:08:11,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11252 to 9998. [2022-03-03 17:08:11,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9998 states, 9997 states have (on average 3.0345103531059316) internal successors, (30336), 9997 states have internal predecessors, (30336), 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) [2022-03-03 17:08:11,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9998 states to 9998 states and 30336 transitions. [2022-03-03 17:08:11,199 INFO L78 Accepts]: Start accepts. Automaton has 9998 states and 30336 transitions. Word has length 134 [2022-03-03 17:08:11,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:11,200 INFO L470 AbstractCegarLoop]: Abstraction has 9998 states and 30336 transitions. [2022-03-03 17:08:11,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:11,200 INFO L276 IsEmpty]: Start isEmpty. Operand 9998 states and 30336 transitions. [2022-03-03 17:08:11,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:11,213 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:11,213 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:11,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-03 17:08:11,214 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:11,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:11,214 INFO L85 PathProgramCache]: Analyzing trace with hash -150451716, now seen corresponding path program 51 times [2022-03-03 17:08:11,214 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:11,214 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976308523] [2022-03-03 17:08:11,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:11,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:11,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:11,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:11,432 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:11,432 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976308523] [2022-03-03 17:08:11,432 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976308523] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:11,432 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:11,432 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-03 17:08:11,433 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895166159] [2022-03-03 17:08:11,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:11,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-03 17:08:11,433 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:11,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-03 17:08:11,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-03-03 17:08:11,434 INFO L87 Difference]: Start difference. First operand 9998 states and 30336 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:11,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:11,811 INFO L93 Difference]: Finished difference Result 10936 states and 33102 transitions. [2022-03-03 17:08:11,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-03 17:08:11,811 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:11,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:11,829 INFO L225 Difference]: With dead ends: 10936 [2022-03-03 17:08:11,829 INFO L226 Difference]: Without dead ends: 10364 [2022-03-03 17:08:11,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2022-03-03 17:08:11,829 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 242 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:11,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 884 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:08:11,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10364 states. [2022-03-03 17:08:11,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10364 to 9950. [2022-03-03 17:08:11,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9950 states, 9949 states have (on average 3.0282440446276007) internal successors, (30128), 9949 states have internal predecessors, (30128), 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) [2022-03-03 17:08:11,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9950 states to 9950 states and 30128 transitions. [2022-03-03 17:08:11,965 INFO L78 Accepts]: Start accepts. Automaton has 9950 states and 30128 transitions. Word has length 134 [2022-03-03 17:08:11,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:11,965 INFO L470 AbstractCegarLoop]: Abstraction has 9950 states and 30128 transitions. [2022-03-03 17:08:11,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:11,965 INFO L276 IsEmpty]: Start isEmpty. Operand 9950 states and 30128 transitions. [2022-03-03 17:08:11,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:11,979 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:11,979 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:11,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-03 17:08:11,979 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:11,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:11,980 INFO L85 PathProgramCache]: Analyzing trace with hash 511737310, now seen corresponding path program 52 times [2022-03-03 17:08:11,980 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:11,980 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144919925] [2022-03-03 17:08:11,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:11,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:11,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:12,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:12,194 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:12,194 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144919925] [2022-03-03 17:08:12,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144919925] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:12,195 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:12,195 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-03 17:08:12,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175062846] [2022-03-03 17:08:12,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:12,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-03 17:08:12,195 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:12,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-03 17:08:12,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:08:12,196 INFO L87 Difference]: Start difference. First operand 9950 states and 30128 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:12,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:12,535 INFO L93 Difference]: Finished difference Result 10433 states and 31426 transitions. [2022-03-03 17:08:12,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 17:08:12,535 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:12,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:12,551 INFO L225 Difference]: With dead ends: 10433 [2022-03-03 17:08:12,551 INFO L226 Difference]: Without dead ends: 9759 [2022-03-03 17:08:12,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2022-03-03 17:08:12,552 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 242 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:12,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 1036 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:08:12,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9759 states. [2022-03-03 17:08:12,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9759 to 9244. [2022-03-03 17:08:12,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9244 states, 9243 states have (on average 3.016444877204371) internal successors, (27881), 9243 states have internal predecessors, (27881), 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) [2022-03-03 17:08:12,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9244 states to 9244 states and 27881 transitions. [2022-03-03 17:08:12,674 INFO L78 Accepts]: Start accepts. Automaton has 9244 states and 27881 transitions. Word has length 134 [2022-03-03 17:08:12,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:12,674 INFO L470 AbstractCegarLoop]: Abstraction has 9244 states and 27881 transitions. [2022-03-03 17:08:12,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:12,674 INFO L276 IsEmpty]: Start isEmpty. Operand 9244 states and 27881 transitions. [2022-03-03 17:08:12,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:12,716 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:12,716 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:12,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-03 17:08:12,716 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:12,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:12,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1843283084, now seen corresponding path program 53 times [2022-03-03 17:08:12,717 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:12,717 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379604683] [2022-03-03 17:08:12,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:12,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:12,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:12,893 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:12,893 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379604683] [2022-03-03 17:08:12,893 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379604683] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:12,893 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:12,893 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:08:12,893 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59986316] [2022-03-03 17:08:12,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:12,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:08:12,894 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:12,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:08:12,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:08:12,894 INFO L87 Difference]: Start difference. First operand 9244 states and 27881 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:13,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:13,148 INFO L93 Difference]: Finished difference Result 10749 states and 32436 transitions. [2022-03-03 17:08:13,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-03 17:08:13,149 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:13,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:13,166 INFO L225 Difference]: With dead ends: 10749 [2022-03-03 17:08:13,166 INFO L226 Difference]: Without dead ends: 9864 [2022-03-03 17:08:13,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:08:13,167 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 208 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:13,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 788 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:08:13,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9864 states. [2022-03-03 17:08:13,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9864 to 9404. [2022-03-03 17:08:13,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9404 states, 9403 states have (on average 3.0140380729554397) internal successors, (28341), 9403 states have internal predecessors, (28341), 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) [2022-03-03 17:08:13,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9404 states to 9404 states and 28341 transitions. [2022-03-03 17:08:13,302 INFO L78 Accepts]: Start accepts. Automaton has 9404 states and 28341 transitions. Word has length 134 [2022-03-03 17:08:13,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:13,303 INFO L470 AbstractCegarLoop]: Abstraction has 9404 states and 28341 transitions. [2022-03-03 17:08:13,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:13,303 INFO L276 IsEmpty]: Start isEmpty. Operand 9404 states and 28341 transitions. [2022-03-03 17:08:13,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:13,323 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:13,323 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:13,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-03 17:08:13,323 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:13,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:13,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1110860546, now seen corresponding path program 54 times [2022-03-03 17:08:13,324 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:13,324 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542456232] [2022-03-03 17:08:13,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:13,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:13,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:13,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:13,441 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:13,441 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542456232] [2022-03-03 17:08:13,441 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542456232] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:13,442 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:13,442 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 17:08:13,442 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462055837] [2022-03-03 17:08:13,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:13,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 17:08:13,442 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:13,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 17:08:13,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:08:13,443 INFO L87 Difference]: Start difference. First operand 9404 states and 28341 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:13,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:13,776 INFO L93 Difference]: Finished difference Result 11867 states and 35716 transitions. [2022-03-03 17:08:13,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 17:08:13,777 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:13,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:13,794 INFO L225 Difference]: With dead ends: 11867 [2022-03-03 17:08:13,794 INFO L226 Difference]: Without dead ends: 10659 [2022-03-03 17:08:13,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2022-03-03 17:08:13,795 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 354 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:13,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 1024 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:08:13,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10659 states. [2022-03-03 17:08:13,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10659 to 10061. [2022-03-03 17:08:13,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10061 states, 10060 states have (on average 3.0102385685884694) internal successors, (30283), 10060 states have internal predecessors, (30283), 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) [2022-03-03 17:08:13,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10061 states to 10061 states and 30283 transitions. [2022-03-03 17:08:13,928 INFO L78 Accepts]: Start accepts. Automaton has 10061 states and 30283 transitions. Word has length 134 [2022-03-03 17:08:13,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:13,928 INFO L470 AbstractCegarLoop]: Abstraction has 10061 states and 30283 transitions. [2022-03-03 17:08:13,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:13,928 INFO L276 IsEmpty]: Start isEmpty. Operand 10061 states and 30283 transitions. [2022-03-03 17:08:13,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:13,942 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:13,942 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:13,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-03 17:08:13,942 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:13,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:13,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1511839170, now seen corresponding path program 55 times [2022-03-03 17:08:13,942 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:13,942 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844608226] [2022-03-03 17:08:13,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:13,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:14,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:14,150 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:14,150 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844608226] [2022-03-03 17:08:14,150 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844608226] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:14,150 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:14,150 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-03 17:08:14,150 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397536168] [2022-03-03 17:08:14,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:14,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-03 17:08:14,151 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:14,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-03 17:08:14,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2022-03-03 17:08:14,151 INFO L87 Difference]: Start difference. First operand 10061 states and 30283 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:14,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:14,528 INFO L93 Difference]: Finished difference Result 14504 states and 43797 transitions. [2022-03-03 17:08:14,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 17:08:14,528 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:14,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:14,549 INFO L225 Difference]: With dead ends: 14504 [2022-03-03 17:08:14,549 INFO L226 Difference]: Without dead ends: 11629 [2022-03-03 17:08:14,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-03-03 17:08:14,550 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 547 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:14,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [547 Valid, 1109 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:08:14,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11629 states. [2022-03-03 17:08:14,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11629 to 9622. [2022-03-03 17:08:14,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9622 states, 9621 states have (on average 3.0041575719779647) internal successors, (28903), 9621 states have internal predecessors, (28903), 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) [2022-03-03 17:08:14,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9622 states to 9622 states and 28903 transitions. [2022-03-03 17:08:14,697 INFO L78 Accepts]: Start accepts. Automaton has 9622 states and 28903 transitions. Word has length 134 [2022-03-03 17:08:14,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:14,698 INFO L470 AbstractCegarLoop]: Abstraction has 9622 states and 28903 transitions. [2022-03-03 17:08:14,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:14,698 INFO L276 IsEmpty]: Start isEmpty. Operand 9622 states and 28903 transitions. [2022-03-03 17:08:14,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:14,710 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:14,711 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:14,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-03 17:08:14,711 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:14,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:14,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1638115794, now seen corresponding path program 56 times [2022-03-03 17:08:14,711 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:14,711 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284055959] [2022-03-03 17:08:14,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:14,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:14,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:14,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:14,903 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:14,903 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284055959] [2022-03-03 17:08:14,903 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284055959] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:14,904 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:14,904 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:08:14,904 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468835564] [2022-03-03 17:08:14,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:14,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:08:14,904 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:14,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:08:14,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:08:14,905 INFO L87 Difference]: Start difference. First operand 9622 states and 28903 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:15,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:15,202 INFO L93 Difference]: Finished difference Result 10489 states and 31458 transitions. [2022-03-03 17:08:15,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-03 17:08:15,203 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:15,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:15,220 INFO L225 Difference]: With dead ends: 10489 [2022-03-03 17:08:15,220 INFO L226 Difference]: Without dead ends: 9510 [2022-03-03 17:08:15,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:08:15,221 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 135 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:15,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 1099 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:08:15,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9510 states. [2022-03-03 17:08:15,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9510 to 9510. [2022-03-03 17:08:15,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9510 states, 9509 states have (on average 3.002103270585761) internal successors, (28547), 9509 states have internal predecessors, (28547), 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) [2022-03-03 17:08:15,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9510 states to 9510 states and 28547 transitions. [2022-03-03 17:08:15,354 INFO L78 Accepts]: Start accepts. Automaton has 9510 states and 28547 transitions. Word has length 134 [2022-03-03 17:08:15,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:15,355 INFO L470 AbstractCegarLoop]: Abstraction has 9510 states and 28547 transitions. [2022-03-03 17:08:15,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:15,355 INFO L276 IsEmpty]: Start isEmpty. Operand 9510 states and 28547 transitions. [2022-03-03 17:08:15,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:15,368 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:15,368 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:15,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-03 17:08:15,368 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:15,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:15,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1006984098, now seen corresponding path program 57 times [2022-03-03 17:08:15,368 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:15,368 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752907470] [2022-03-03 17:08:15,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:15,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:15,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:15,553 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:15,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752907470] [2022-03-03 17:08:15,553 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752907470] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:15,553 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:15,553 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-03 17:08:15,553 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611890140] [2022-03-03 17:08:15,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:15,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-03 17:08:15,553 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:15,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-03 17:08:15,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:08:15,554 INFO L87 Difference]: Start difference. First operand 9510 states and 28547 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:15,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:15,983 INFO L93 Difference]: Finished difference Result 10948 states and 32868 transitions. [2022-03-03 17:08:15,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-03 17:08:15,983 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:15,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:15,998 INFO L225 Difference]: With dead ends: 10948 [2022-03-03 17:08:15,998 INFO L226 Difference]: Without dead ends: 9611 [2022-03-03 17:08:15,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:08:15,998 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 206 mSDsluCounter, 1406 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:15,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 1360 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:08:16,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9611 states. [2022-03-03 17:08:16,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9611 to 9267. [2022-03-03 17:08:16,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9267 states, 9266 states have (on average 2.9888840923807467) internal successors, (27695), 9266 states have internal predecessors, (27695), 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) [2022-03-03 17:08:16,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9267 states to 9267 states and 27695 transitions. [2022-03-03 17:08:16,118 INFO L78 Accepts]: Start accepts. Automaton has 9267 states and 27695 transitions. Word has length 134 [2022-03-03 17:08:16,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:16,118 INFO L470 AbstractCegarLoop]: Abstraction has 9267 states and 27695 transitions. [2022-03-03 17:08:16,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:16,118 INFO L276 IsEmpty]: Start isEmpty. Operand 9267 states and 27695 transitions. [2022-03-03 17:08:16,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:16,130 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:16,130 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:16,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-03 17:08:16,130 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:16,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:16,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1353275712, now seen corresponding path program 58 times [2022-03-03 17:08:16,131 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:16,131 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662951615] [2022-03-03 17:08:16,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:16,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:16,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:16,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:16,204 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:16,204 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662951615] [2022-03-03 17:08:16,205 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662951615] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:16,205 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:16,205 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 17:08:16,205 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354609508] [2022-03-03 17:08:16,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:16,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 17:08:16,205 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:16,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 17:08:16,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-03-03 17:08:16,206 INFO L87 Difference]: Start difference. First operand 9267 states and 27695 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:16,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:16,405 INFO L93 Difference]: Finished difference Result 9369 states and 27726 transitions. [2022-03-03 17:08:16,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 17:08:16,405 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:16,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:16,423 INFO L225 Difference]: With dead ends: 9369 [2022-03-03 17:08:16,423 INFO L226 Difference]: Without dead ends: 8290 [2022-03-03 17:08:16,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:08:16,424 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 426 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:16,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 581 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:08:16,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8290 states. [2022-03-03 17:08:16,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8290 to 8266. [2022-03-03 17:08:16,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8266 states, 8265 states have (on average 2.9496672716273444) internal successors, (24379), 8265 states have internal predecessors, (24379), 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) [2022-03-03 17:08:16,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8266 states to 8266 states and 24379 transitions. [2022-03-03 17:08:16,568 INFO L78 Accepts]: Start accepts. Automaton has 8266 states and 24379 transitions. Word has length 134 [2022-03-03 17:08:16,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:16,568 INFO L470 AbstractCegarLoop]: Abstraction has 8266 states and 24379 transitions. [2022-03-03 17:08:16,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:16,568 INFO L276 IsEmpty]: Start isEmpty. Operand 8266 states and 24379 transitions. [2022-03-03 17:08:16,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:16,582 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:16,582 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:16,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-03 17:08:16,583 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:16,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:16,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1860242304, now seen corresponding path program 59 times [2022-03-03 17:08:16,583 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:16,583 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924878506] [2022-03-03 17:08:16,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:16,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:16,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:16,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:16,763 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:16,763 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924878506] [2022-03-03 17:08:16,763 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924878506] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:16,763 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:16,763 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 17:08:16,763 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553676482] [2022-03-03 17:08:16,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:16,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 17:08:16,764 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:16,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 17:08:16,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:08:16,764 INFO L87 Difference]: Start difference. First operand 8266 states and 24379 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:17,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:17,104 INFO L93 Difference]: Finished difference Result 9536 states and 28197 transitions. [2022-03-03 17:08:17,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-03 17:08:17,104 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:17,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:17,119 INFO L225 Difference]: With dead ends: 9536 [2022-03-03 17:08:17,119 INFO L226 Difference]: Without dead ends: 8790 [2022-03-03 17:08:17,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2022-03-03 17:08:17,120 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 238 mSDsluCounter, 1140 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:17,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 1144 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:08:17,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8790 states. [2022-03-03 17:08:17,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8790 to 8475. [2022-03-03 17:08:17,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8475 states, 8474 states have (on average 2.9503186216662733) internal successors, (25001), 8474 states have internal predecessors, (25001), 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) [2022-03-03 17:08:17,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8475 states to 8475 states and 25001 transitions. [2022-03-03 17:08:17,227 INFO L78 Accepts]: Start accepts. Automaton has 8475 states and 25001 transitions. Word has length 134 [2022-03-03 17:08:17,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:17,227 INFO L470 AbstractCegarLoop]: Abstraction has 8475 states and 25001 transitions. [2022-03-03 17:08:17,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:17,228 INFO L276 IsEmpty]: Start isEmpty. Operand 8475 states and 25001 transitions. [2022-03-03 17:08:17,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:17,238 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:17,238 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:17,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-03 17:08:17,239 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:17,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:17,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1088490750, now seen corresponding path program 60 times [2022-03-03 17:08:17,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:17,239 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975744725] [2022-03-03 17:08:17,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:17,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:17,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:17,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:17,414 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:17,414 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975744725] [2022-03-03 17:08:17,415 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975744725] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:17,415 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:17,415 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 17:08:17,415 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075611603] [2022-03-03 17:08:17,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:17,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 17:08:17,415 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:17,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 17:08:17,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:08:17,416 INFO L87 Difference]: Start difference. First operand 8475 states and 25001 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:17,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:17,701 INFO L93 Difference]: Finished difference Result 8475 states and 24941 transitions. [2022-03-03 17:08:17,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 17:08:17,702 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:17,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:17,717 INFO L225 Difference]: With dead ends: 8475 [2022-03-03 17:08:17,717 INFO L226 Difference]: Without dead ends: 7796 [2022-03-03 17:08:17,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-03-03 17:08:17,718 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 249 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:17,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 961 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:08:17,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7796 states. [2022-03-03 17:08:17,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7796 to 7796. [2022-03-03 17:08:17,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7796 states, 7795 states have (on average 2.9502245028864658) internal successors, (22997), 7795 states have internal predecessors, (22997), 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) [2022-03-03 17:08:17,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7796 states to 7796 states and 22997 transitions. [2022-03-03 17:08:17,848 INFO L78 Accepts]: Start accepts. Automaton has 7796 states and 22997 transitions. Word has length 134 [2022-03-03 17:08:17,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:17,848 INFO L470 AbstractCegarLoop]: Abstraction has 7796 states and 22997 transitions. [2022-03-03 17:08:17,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:17,848 INFO L276 IsEmpty]: Start isEmpty. Operand 7796 states and 22997 transitions. [2022-03-03 17:08:17,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:17,858 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:17,858 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:17,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-03 17:08:17,858 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:17,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:17,858 INFO L85 PathProgramCache]: Analyzing trace with hash 2114227228, now seen corresponding path program 61 times [2022-03-03 17:08:17,858 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:17,858 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002502507] [2022-03-03 17:08:17,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:17,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:17,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:18,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:18,058 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:18,058 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002502507] [2022-03-03 17:08:18,058 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002502507] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:18,058 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:18,058 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-03 17:08:18,058 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479115764] [2022-03-03 17:08:18,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:18,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-03 17:08:18,058 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:18,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-03 17:08:18,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:08:18,059 INFO L87 Difference]: Start difference. First operand 7796 states and 22997 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:18,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:18,439 INFO L93 Difference]: Finished difference Result 8732 states and 25671 transitions. [2022-03-03 17:08:18,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 17:08:18,439 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:18,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:18,450 INFO L225 Difference]: With dead ends: 8732 [2022-03-03 17:08:18,450 INFO L226 Difference]: Without dead ends: 6916 [2022-03-03 17:08:18,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2022-03-03 17:08:18,451 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 200 mSDsluCounter, 1458 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 1399 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:18,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 1399 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:08:18,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6916 states. [2022-03-03 17:08:18,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6916 to 6828. [2022-03-03 17:08:18,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6828 states, 6827 states have (on average 2.925882525267321) internal successors, (19975), 6827 states have internal predecessors, (19975), 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) [2022-03-03 17:08:18,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6828 states to 6828 states and 19975 transitions. [2022-03-03 17:08:18,533 INFO L78 Accepts]: Start accepts. Automaton has 6828 states and 19975 transitions. Word has length 134 [2022-03-03 17:08:18,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:18,533 INFO L470 AbstractCegarLoop]: Abstraction has 6828 states and 19975 transitions. [2022-03-03 17:08:18,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:18,533 INFO L276 IsEmpty]: Start isEmpty. Operand 6828 states and 19975 transitions. [2022-03-03 17:08:18,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:18,542 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:18,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:18,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-03 17:08:18,542 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:18,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:18,543 INFO L85 PathProgramCache]: Analyzing trace with hash -781267618, now seen corresponding path program 62 times [2022-03-03 17:08:18,543 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:18,543 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130195210] [2022-03-03 17:08:18,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:18,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:18,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:18,703 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:18,703 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130195210] [2022-03-03 17:08:18,703 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130195210] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:18,703 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:18,703 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 17:08:18,703 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340733746] [2022-03-03 17:08:18,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:18,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 17:08:18,704 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:18,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 17:08:18,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:08:18,704 INFO L87 Difference]: Start difference. First operand 6828 states and 19975 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:18,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:18,946 INFO L93 Difference]: Finished difference Result 7922 states and 23060 transitions. [2022-03-03 17:08:18,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-03 17:08:18,947 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:18,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:18,961 INFO L225 Difference]: With dead ends: 7922 [2022-03-03 17:08:18,962 INFO L226 Difference]: Without dead ends: 7006 [2022-03-03 17:08:18,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=77, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:08:18,962 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 249 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:18,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 805 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:08:18,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7006 states. [2022-03-03 17:08:19,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7006 to 5928. [2022-03-03 17:08:19,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5928 states, 5927 states have (on average 2.8913446937742533) internal successors, (17137), 5927 states have internal predecessors, (17137), 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) [2022-03-03 17:08:19,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5928 states to 5928 states and 17137 transitions. [2022-03-03 17:08:19,067 INFO L78 Accepts]: Start accepts. Automaton has 5928 states and 17137 transitions. Word has length 134 [2022-03-03 17:08:19,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:19,067 INFO L470 AbstractCegarLoop]: Abstraction has 5928 states and 17137 transitions. [2022-03-03 17:08:19,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:19,067 INFO L276 IsEmpty]: Start isEmpty. Operand 5928 states and 17137 transitions. [2022-03-03 17:08:19,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:19,077 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:19,077 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:19,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-03 17:08:19,079 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:19,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:19,079 INFO L85 PathProgramCache]: Analyzing trace with hash -2369660, now seen corresponding path program 63 times [2022-03-03 17:08:19,079 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:19,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021075600] [2022-03-03 17:08:19,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:19,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:19,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:19,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:19,232 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:19,232 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021075600] [2022-03-03 17:08:19,233 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021075600] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:19,233 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:19,233 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 17:08:19,233 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294067878] [2022-03-03 17:08:19,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:19,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 17:08:19,233 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:19,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 17:08:19,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:08:19,234 INFO L87 Difference]: Start difference. First operand 5928 states and 17137 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:19,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:19,524 INFO L93 Difference]: Finished difference Result 7737 states and 22359 transitions. [2022-03-03 17:08:19,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-03 17:08:19,524 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:19,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:19,535 INFO L225 Difference]: With dead ends: 7737 [2022-03-03 17:08:19,535 INFO L226 Difference]: Without dead ends: 7056 [2022-03-03 17:08:19,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:08:19,535 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 417 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 1435 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:19,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [417 Valid, 1435 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:08:19,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7056 states. [2022-03-03 17:08:19,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7056 to 5802. [2022-03-03 17:08:19,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5802 states, 5801 states have (on average 2.885881744526806) internal successors, (16741), 5801 states have internal predecessors, (16741), 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) [2022-03-03 17:08:19,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5802 states to 5802 states and 16741 transitions. [2022-03-03 17:08:19,606 INFO L78 Accepts]: Start accepts. Automaton has 5802 states and 16741 transitions. Word has length 134 [2022-03-03 17:08:19,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:19,606 INFO L470 AbstractCegarLoop]: Abstraction has 5802 states and 16741 transitions. [2022-03-03 17:08:19,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:19,607 INFO L276 IsEmpty]: Start isEmpty. Operand 5802 states and 16741 transitions. [2022-03-03 17:08:19,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:19,613 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:19,613 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:19,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-03 17:08:19,613 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:19,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:19,613 INFO L85 PathProgramCache]: Analyzing trace with hash 480005168, now seen corresponding path program 64 times [2022-03-03 17:08:19,614 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:19,614 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132065321] [2022-03-03 17:08:19,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:19,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:19,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:19,860 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:19,860 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132065321] [2022-03-03 17:08:19,860 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132065321] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:19,860 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:19,861 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-03 17:08:19,861 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499715655] [2022-03-03 17:08:19,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:19,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-03 17:08:19,861 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:19,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-03 17:08:19,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-03-03 17:08:19,862 INFO L87 Difference]: Start difference. First operand 5802 states and 16741 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:20,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:20,171 INFO L93 Difference]: Finished difference Result 7443 states and 21548 transitions. [2022-03-03 17:08:20,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-03 17:08:20,172 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:20,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:20,186 INFO L225 Difference]: With dead ends: 7443 [2022-03-03 17:08:20,187 INFO L226 Difference]: Without dead ends: 6714 [2022-03-03 17:08:20,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-03-03 17:08:20,188 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 395 mSDsluCounter, 1278 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:20,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [395 Valid, 1293 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:08:20,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6714 states. [2022-03-03 17:08:20,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6714 to 5598. [2022-03-03 17:08:20,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5598 states, 5597 states have (on average 2.895122386993032) internal successors, (16204), 5597 states have internal predecessors, (16204), 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) [2022-03-03 17:08:20,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5598 states to 5598 states and 16204 transitions. [2022-03-03 17:08:20,328 INFO L78 Accepts]: Start accepts. Automaton has 5598 states and 16204 transitions. Word has length 134 [2022-03-03 17:08:20,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:20,328 INFO L470 AbstractCegarLoop]: Abstraction has 5598 states and 16204 transitions. [2022-03-03 17:08:20,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:20,328 INFO L276 IsEmpty]: Start isEmpty. Operand 5598 states and 16204 transitions. [2022-03-03 17:08:20,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:20,335 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:20,335 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:20,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-03 17:08:20,335 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:20,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:20,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1439989362, now seen corresponding path program 65 times [2022-03-03 17:08:20,336 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:20,336 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680974959] [2022-03-03 17:08:20,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:20,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:20,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:20,558 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:20,558 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680974959] [2022-03-03 17:08:20,558 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680974959] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:20,558 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:20,558 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:08:20,558 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897151279] [2022-03-03 17:08:20,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:20,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:08:20,559 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:20,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:08:20,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:08:20,559 INFO L87 Difference]: Start difference. First operand 5598 states and 16204 transitions. Second operand has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:20,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:20,940 INFO L93 Difference]: Finished difference Result 6453 states and 18598 transitions. [2022-03-03 17:08:20,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 17:08:20,940 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:20,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:20,949 INFO L225 Difference]: With dead ends: 6453 [2022-03-03 17:08:20,949 INFO L226 Difference]: Without dead ends: 5760 [2022-03-03 17:08:20,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2022-03-03 17:08:20,950 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 219 mSDsluCounter, 2088 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 2018 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:20,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 2018 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:08:20,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5760 states. [2022-03-03 17:08:21,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5760 to 5598. [2022-03-03 17:08:21,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5598 states, 5597 states have (on average 2.883330355547615) internal successors, (16138), 5597 states have internal predecessors, (16138), 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) [2022-03-03 17:08:21,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5598 states to 5598 states and 16138 transitions. [2022-03-03 17:08:21,013 INFO L78 Accepts]: Start accepts. Automaton has 5598 states and 16138 transitions. Word has length 134 [2022-03-03 17:08:21,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:21,013 INFO L470 AbstractCegarLoop]: Abstraction has 5598 states and 16138 transitions. [2022-03-03 17:08:21,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:21,013 INFO L276 IsEmpty]: Start isEmpty. Operand 5598 states and 16138 transitions. [2022-03-03 17:08:21,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:21,020 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:21,020 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:21,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-03 17:08:21,020 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:21,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:21,020 INFO L85 PathProgramCache]: Analyzing trace with hash 964872656, now seen corresponding path program 66 times [2022-03-03 17:08:21,020 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:21,020 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395070435] [2022-03-03 17:08:21,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:21,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:21,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:21,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:21,242 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:21,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395070435] [2022-03-03 17:08:21,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395070435] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:21,242 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:21,242 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-03 17:08:21,242 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535149884] [2022-03-03 17:08:21,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:21,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-03 17:08:21,243 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:21,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-03 17:08:21,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:08:21,243 INFO L87 Difference]: Start difference. First operand 5598 states and 16138 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:21,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:21,473 INFO L93 Difference]: Finished difference Result 6063 states and 17508 transitions. [2022-03-03 17:08:21,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-03 17:08:21,474 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:21,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:21,481 INFO L225 Difference]: With dead ends: 6063 [2022-03-03 17:08:21,481 INFO L226 Difference]: Without dead ends: 5538 [2022-03-03 17:08:21,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:08:21,482 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 155 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:21,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 978 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:08:21,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5538 states. [2022-03-03 17:08:21,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5538 to 5538. [2022-03-03 17:08:21,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5538 states, 5537 states have (on average 2.878454036481849) internal successors, (15938), 5537 states have internal predecessors, (15938), 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) [2022-03-03 17:08:21,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5538 states to 5538 states and 15938 transitions. [2022-03-03 17:08:21,544 INFO L78 Accepts]: Start accepts. Automaton has 5538 states and 15938 transitions. Word has length 134 [2022-03-03 17:08:21,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:21,544 INFO L470 AbstractCegarLoop]: Abstraction has 5538 states and 15938 transitions. [2022-03-03 17:08:21,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:21,545 INFO L276 IsEmpty]: Start isEmpty. Operand 5538 states and 15938 transitions. [2022-03-03 17:08:21,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:21,550 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:21,551 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:21,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-03 17:08:21,551 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:21,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:21,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1991106770, now seen corresponding path program 67 times [2022-03-03 17:08:21,551 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:21,551 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358549496] [2022-03-03 17:08:21,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:21,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:21,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:21,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:21,752 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:21,752 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358549496] [2022-03-03 17:08:21,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358549496] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:21,753 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:21,753 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-03 17:08:21,753 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133891385] [2022-03-03 17:08:21,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:21,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-03 17:08:21,753 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:21,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-03 17:08:21,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-03-03 17:08:21,753 INFO L87 Difference]: Start difference. First operand 5538 states and 15938 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:21,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:21,979 INFO L93 Difference]: Finished difference Result 5538 states and 15848 transitions. [2022-03-03 17:08:21,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-03 17:08:21,979 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:21,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:21,986 INFO L225 Difference]: With dead ends: 5538 [2022-03-03 17:08:21,986 INFO L226 Difference]: Without dead ends: 4667 [2022-03-03 17:08:21,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-03-03 17:08:21,986 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 180 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:21,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 1012 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:08:21,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4667 states. [2022-03-03 17:08:22,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4667 to 4667. [2022-03-03 17:08:22,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4667 states, 4666 states have (on average 2.8641234462066008) internal successors, (13364), 4666 states have internal predecessors, (13364), 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) [2022-03-03 17:08:22,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4667 states to 4667 states and 13364 transitions. [2022-03-03 17:08:22,039 INFO L78 Accepts]: Start accepts. Automaton has 4667 states and 13364 transitions. Word has length 134 [2022-03-03 17:08:22,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:22,039 INFO L470 AbstractCegarLoop]: Abstraction has 4667 states and 13364 transitions. [2022-03-03 17:08:22,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:22,039 INFO L276 IsEmpty]: Start isEmpty. Operand 4667 states and 13364 transitions. [2022-03-03 17:08:22,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:22,044 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:22,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:22,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-03 17:08:22,044 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:22,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:22,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1487259344, now seen corresponding path program 68 times [2022-03-03 17:08:22,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:22,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552325906] [2022-03-03 17:08:22,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:22,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:22,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:22,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:22,165 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:22,166 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552325906] [2022-03-03 17:08:22,166 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552325906] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:22,166 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:22,166 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-03 17:08:22,166 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055978657] [2022-03-03 17:08:22,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:22,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-03 17:08:22,166 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:22,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-03 17:08:22,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:08:22,167 INFO L87 Difference]: Start difference. First operand 4667 states and 13364 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:22,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:22,566 INFO L93 Difference]: Finished difference Result 5267 states and 15084 transitions. [2022-03-03 17:08:22,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-03 17:08:22,567 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:22,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:22,576 INFO L225 Difference]: With dead ends: 5267 [2022-03-03 17:08:22,576 INFO L226 Difference]: Without dead ends: 4256 [2022-03-03 17:08:22,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=158, Invalid=262, Unknown=0, NotChecked=0, Total=420 [2022-03-03 17:08:22,576 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 455 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:22,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [455 Valid, 1196 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:08:22,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4256 states. [2022-03-03 17:08:22,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4256 to 3779. [2022-03-03 17:08:22,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3779 states, 3778 states have (on average 2.887771307570143) internal successors, (10910), 3778 states have internal predecessors, (10910), 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) [2022-03-03 17:08:22,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3779 states to 3779 states and 10910 transitions. [2022-03-03 17:08:22,640 INFO L78 Accepts]: Start accepts. Automaton has 3779 states and 10910 transitions. Word has length 134 [2022-03-03 17:08:22,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:22,640 INFO L470 AbstractCegarLoop]: Abstraction has 3779 states and 10910 transitions. [2022-03-03 17:08:22,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:22,640 INFO L276 IsEmpty]: Start isEmpty. Operand 3779 states and 10910 transitions. [2022-03-03 17:08:22,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:22,646 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:22,646 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:22,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-03 17:08:22,646 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:22,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:22,647 INFO L85 PathProgramCache]: Analyzing trace with hash 555405876, now seen corresponding path program 69 times [2022-03-03 17:08:22,647 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:22,647 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112820779] [2022-03-03 17:08:22,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:22,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:22,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:22,793 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:22,793 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112820779] [2022-03-03 17:08:22,793 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112820779] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:22,793 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:22,793 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:08:22,793 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152064965] [2022-03-03 17:08:22,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:22,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:08:22,794 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:22,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:08:22,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:08:22,794 INFO L87 Difference]: Start difference. First operand 3779 states and 10910 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:22,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:22,996 INFO L93 Difference]: Finished difference Result 6986 states and 20360 transitions. [2022-03-03 17:08:22,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 17:08:22,997 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:22,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:23,012 INFO L225 Difference]: With dead ends: 6986 [2022-03-03 17:08:23,012 INFO L226 Difference]: Without dead ends: 6620 [2022-03-03 17:08:23,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:08:23,013 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 375 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:23,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 916 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:08:23,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6620 states. [2022-03-03 17:08:23,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6620 to 3803. [2022-03-03 17:08:23,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3803 states, 3802 states have (on average 2.8737506575486584) internal successors, (10926), 3802 states have internal predecessors, (10926), 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) [2022-03-03 17:08:23,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3803 states to 3803 states and 10926 transitions. [2022-03-03 17:08:23,083 INFO L78 Accepts]: Start accepts. Automaton has 3803 states and 10926 transitions. Word has length 134 [2022-03-03 17:08:23,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:23,083 INFO L470 AbstractCegarLoop]: Abstraction has 3803 states and 10926 transitions. [2022-03-03 17:08:23,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:23,083 INFO L276 IsEmpty]: Start isEmpty. Operand 3803 states and 10926 transitions. [2022-03-03 17:08:23,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:23,088 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:23,088 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:23,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-03 17:08:23,088 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:23,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:23,088 INFO L85 PathProgramCache]: Analyzing trace with hash 179363648, now seen corresponding path program 70 times [2022-03-03 17:08:23,088 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:23,088 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945774128] [2022-03-03 17:08:23,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:23,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:23,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:23,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:23,232 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:23,232 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945774128] [2022-03-03 17:08:23,232 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945774128] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:23,232 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:23,232 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 17:08:23,232 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084992443] [2022-03-03 17:08:23,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:23,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-03 17:08:23,233 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:23,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-03 17:08:23,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-03-03 17:08:23,233 INFO L87 Difference]: Start difference. First operand 3803 states and 10926 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:23,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:23,383 INFO L93 Difference]: Finished difference Result 4127 states and 11877 transitions. [2022-03-03 17:08:23,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-03 17:08:23,384 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:23,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:23,391 INFO L225 Difference]: With dead ends: 4127 [2022-03-03 17:08:23,391 INFO L226 Difference]: Without dead ends: 3605 [2022-03-03 17:08:23,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-03-03 17:08:23,391 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 88 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:23,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 571 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:08:23,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3605 states. [2022-03-03 17:08:23,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3605 to 3605. [2022-03-03 17:08:23,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3605 states, 3604 states have (on average 2.866814650388457) internal successors, (10332), 3604 states have internal predecessors, (10332), 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) [2022-03-03 17:08:23,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3605 states to 3605 states and 10332 transitions. [2022-03-03 17:08:23,446 INFO L78 Accepts]: Start accepts. Automaton has 3605 states and 10332 transitions. Word has length 134 [2022-03-03 17:08:23,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:23,446 INFO L470 AbstractCegarLoop]: Abstraction has 3605 states and 10332 transitions. [2022-03-03 17:08:23,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:23,447 INFO L276 IsEmpty]: Start isEmpty. Operand 3605 states and 10332 transitions. [2022-03-03 17:08:23,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:23,452 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:23,453 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:23,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-03 17:08:23,453 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:23,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:23,453 INFO L85 PathProgramCache]: Analyzing trace with hash -58097890, now seen corresponding path program 71 times [2022-03-03 17:08:23,453 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:23,454 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825790755] [2022-03-03 17:08:23,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:23,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:23,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:23,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:23,628 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:23,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825790755] [2022-03-03 17:08:23,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825790755] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:23,628 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:23,629 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 17:08:23,629 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601120995] [2022-03-03 17:08:23,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:23,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 17:08:23,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:23,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 17:08:23,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:08:23,630 INFO L87 Difference]: Start difference. First operand 3605 states and 10332 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:23,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:23,884 INFO L93 Difference]: Finished difference Result 4361 states and 12531 transitions. [2022-03-03 17:08:23,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 17:08:23,885 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:23,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:23,892 INFO L225 Difference]: With dead ends: 4361 [2022-03-03 17:08:23,892 INFO L226 Difference]: Without dead ends: 3795 [2022-03-03 17:08:23,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-03-03 17:08:23,892 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 213 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:23,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 824 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:08:23,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3795 states. [2022-03-03 17:08:23,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3795 to 3303. [2022-03-03 17:08:23,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3303 states, 3302 states have (on average 2.8597819503331317) internal successors, (9443), 3302 states have internal predecessors, (9443), 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) [2022-03-03 17:08:23,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3303 states to 3303 states and 9443 transitions. [2022-03-03 17:08:23,961 INFO L78 Accepts]: Start accepts. Automaton has 3303 states and 9443 transitions. Word has length 134 [2022-03-03 17:08:23,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:23,961 INFO L470 AbstractCegarLoop]: Abstraction has 3303 states and 9443 transitions. [2022-03-03 17:08:23,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:23,962 INFO L276 IsEmpty]: Start isEmpty. Operand 3303 states and 9443 transitions. [2022-03-03 17:08:23,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:23,966 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:23,966 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:23,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-03-03 17:08:23,967 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:23,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:23,967 INFO L85 PathProgramCache]: Analyzing trace with hash -563052898, now seen corresponding path program 72 times [2022-03-03 17:08:23,967 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:23,967 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000928343] [2022-03-03 17:08:23,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:23,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:23,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:24,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:24,162 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:24,162 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000928343] [2022-03-03 17:08:24,162 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000928343] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:24,162 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:24,163 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-03 17:08:24,163 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095731504] [2022-03-03 17:08:24,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:24,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-03 17:08:24,163 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:24,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-03 17:08:24,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:08:24,164 INFO L87 Difference]: Start difference. First operand 3303 states and 9443 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:24,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:24,466 INFO L93 Difference]: Finished difference Result 3675 states and 10546 transitions. [2022-03-03 17:08:24,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-03 17:08:24,466 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:24,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:24,471 INFO L225 Difference]: With dead ends: 3675 [2022-03-03 17:08:24,471 INFO L226 Difference]: Without dead ends: 3111 [2022-03-03 17:08:24,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-03-03 17:08:24,472 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 131 mSDsluCounter, 1128 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:24,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 1151 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:08:24,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3111 states. [2022-03-03 17:08:24,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3111 to 3039. [2022-03-03 17:08:24,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3039 states, 3038 states have (on average 2.869321922317314) internal successors, (8717), 3038 states have internal predecessors, (8717), 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) [2022-03-03 17:08:24,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3039 states to 3039 states and 8717 transitions. [2022-03-03 17:08:24,507 INFO L78 Accepts]: Start accepts. Automaton has 3039 states and 8717 transitions. Word has length 134 [2022-03-03 17:08:24,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:24,507 INFO L470 AbstractCegarLoop]: Abstraction has 3039 states and 8717 transitions. [2022-03-03 17:08:24,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:24,507 INFO L276 IsEmpty]: Start isEmpty. Operand 3039 states and 8717 transitions. [2022-03-03 17:08:24,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:24,511 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:24,511 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:24,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-03-03 17:08:24,511 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:24,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:24,511 INFO L85 PathProgramCache]: Analyzing trace with hash -886322154, now seen corresponding path program 73 times [2022-03-03 17:08:24,511 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:24,511 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906140741] [2022-03-03 17:08:24,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:24,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:24,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:24,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:24,732 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:24,732 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906140741] [2022-03-03 17:08:24,732 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906140741] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:24,732 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:24,732 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:08:24,732 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462792802] [2022-03-03 17:08:24,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:24,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:08:24,733 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:24,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:08:24,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:08:24,733 INFO L87 Difference]: Start difference. First operand 3039 states and 8717 transitions. Second operand has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:24,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:24,960 INFO L93 Difference]: Finished difference Result 3291 states and 9434 transitions. [2022-03-03 17:08:24,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-03 17:08:24,960 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:24,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:24,965 INFO L225 Difference]: With dead ends: 3291 [2022-03-03 17:08:24,965 INFO L226 Difference]: Without dead ends: 3063 [2022-03-03 17:08:24,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2022-03-03 17:08:24,965 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 207 mSDsluCounter, 1065 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:24,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 1118 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:08:24,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3063 states. [2022-03-03 17:08:24,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3063 to 3063. [2022-03-03 17:08:24,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3063 states, 3062 states have (on average 2.8657740039190074) internal successors, (8775), 3062 states have internal predecessors, (8775), 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) [2022-03-03 17:08:25,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3063 states to 3063 states and 8775 transitions. [2022-03-03 17:08:25,001 INFO L78 Accepts]: Start accepts. Automaton has 3063 states and 8775 transitions. Word has length 134 [2022-03-03 17:08:25,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:25,001 INFO L470 AbstractCegarLoop]: Abstraction has 3063 states and 8775 transitions. [2022-03-03 17:08:25,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:25,001 INFO L276 IsEmpty]: Start isEmpty. Operand 3063 states and 8775 transitions. [2022-03-03 17:08:25,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:25,005 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:25,005 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:25,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-03 17:08:25,005 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:25,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:25,005 INFO L85 PathProgramCache]: Analyzing trace with hash -760800234, now seen corresponding path program 74 times [2022-03-03 17:08:25,005 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:25,005 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207945380] [2022-03-03 17:08:25,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:25,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:25,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:25,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:25,253 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:25,253 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207945380] [2022-03-03 17:08:25,253 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207945380] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:25,253 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:25,253 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-03 17:08:25,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786179013] [2022-03-03 17:08:25,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:25,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 17:08:25,253 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:25,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 17:08:25,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-03-03 17:08:25,254 INFO L87 Difference]: Start difference. First operand 3063 states and 8775 transitions. Second operand has 16 states, 16 states have (on average 8.375) internal successors, (134), 16 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:25,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:25,525 INFO L93 Difference]: Finished difference Result 3323 states and 9518 transitions. [2022-03-03 17:08:25,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-03 17:08:25,525 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.375) internal successors, (134), 16 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:25,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:25,530 INFO L225 Difference]: With dead ends: 3323 [2022-03-03 17:08:25,530 INFO L226 Difference]: Without dead ends: 2991 [2022-03-03 17:08:25,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2022-03-03 17:08:25,530 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 181 mSDsluCounter, 1462 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:25,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 1463 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:08:25,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2991 states. [2022-03-03 17:08:25,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2991 to 2983. [2022-03-03 17:08:25,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2983 states, 2982 states have (on average 2.868879946344735) internal successors, (8555), 2982 states have internal predecessors, (8555), 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) [2022-03-03 17:08:25,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2983 states to 2983 states and 8555 transitions. [2022-03-03 17:08:25,562 INFO L78 Accepts]: Start accepts. Automaton has 2983 states and 8555 transitions. Word has length 134 [2022-03-03 17:08:25,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:25,562 INFO L470 AbstractCegarLoop]: Abstraction has 2983 states and 8555 transitions. [2022-03-03 17:08:25,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.375) internal successors, (134), 16 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:25,562 INFO L276 IsEmpty]: Start isEmpty. Operand 2983 states and 8555 transitions. [2022-03-03 17:08:25,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:25,565 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:25,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:25,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-03-03 17:08:25,565 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:25,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:25,566 INFO L85 PathProgramCache]: Analyzing trace with hash 775472158, now seen corresponding path program 75 times [2022-03-03 17:08:25,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:25,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526102758] [2022-03-03 17:08:25,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:25,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:25,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:25,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:25,721 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:25,722 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526102758] [2022-03-03 17:08:25,722 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526102758] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:25,722 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:25,722 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-03 17:08:25,722 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944386056] [2022-03-03 17:08:25,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:25,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-03 17:08:25,722 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:25,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-03 17:08:25,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-03-03 17:08:25,723 INFO L87 Difference]: Start difference. First operand 2983 states and 8555 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:25,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:25,968 INFO L93 Difference]: Finished difference Result 3991 states and 11563 transitions. [2022-03-03 17:08:25,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-03 17:08:25,968 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:25,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:25,975 INFO L225 Difference]: With dead ends: 3991 [2022-03-03 17:08:25,976 INFO L226 Difference]: Without dead ends: 3619 [2022-03-03 17:08:25,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-03-03 17:08:25,976 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 352 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:25,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 1063 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:08:25,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3619 states. [2022-03-03 17:08:26,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3619 to 3079. [2022-03-03 17:08:26,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3079 states, 3078 states have (on average 2.865172189733593) internal successors, (8819), 3078 states have internal predecessors, (8819), 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) [2022-03-03 17:08:26,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3079 states to 3079 states and 8819 transitions. [2022-03-03 17:08:26,024 INFO L78 Accepts]: Start accepts. Automaton has 3079 states and 8819 transitions. Word has length 134 [2022-03-03 17:08:26,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:26,024 INFO L470 AbstractCegarLoop]: Abstraction has 3079 states and 8819 transitions. [2022-03-03 17:08:26,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:26,024 INFO L276 IsEmpty]: Start isEmpty. Operand 3079 states and 8819 transitions. [2022-03-03 17:08:26,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:26,029 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:26,029 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:26,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-03-03 17:08:26,030 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:26,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:26,030 INFO L85 PathProgramCache]: Analyzing trace with hash 900994078, now seen corresponding path program 76 times [2022-03-03 17:08:26,030 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:26,030 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676839420] [2022-03-03 17:08:26,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:26,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:26,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:26,325 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:26,325 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676839420] [2022-03-03 17:08:26,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676839420] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:26,325 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:26,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 17:08:26,325 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813833933] [2022-03-03 17:08:26,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:26,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 17:08:26,326 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:26,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 17:08:26,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:08:26,326 INFO L87 Difference]: Start difference. First operand 3079 states and 8819 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:26,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:26,513 INFO L93 Difference]: Finished difference Result 3331 states and 9560 transitions. [2022-03-03 17:08:26,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 17:08:26,514 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:26,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:26,518 INFO L225 Difference]: With dead ends: 3331 [2022-03-03 17:08:26,518 INFO L226 Difference]: Without dead ends: 3031 [2022-03-03 17:08:26,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:08:26,519 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 115 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:26,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 928 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:08:26,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3031 states. [2022-03-03 17:08:26,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3031 to 3031. [2022-03-03 17:08:26,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3031 states, 3030 states have (on average 2.853795379537954) internal successors, (8647), 3030 states have internal predecessors, (8647), 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) [2022-03-03 17:08:26,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3031 states to 3031 states and 8647 transitions. [2022-03-03 17:08:26,552 INFO L78 Accepts]: Start accepts. Automaton has 3031 states and 8647 transitions. Word has length 134 [2022-03-03 17:08:26,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:26,552 INFO L470 AbstractCegarLoop]: Abstraction has 3031 states and 8647 transitions. [2022-03-03 17:08:26,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:26,552 INFO L276 IsEmpty]: Start isEmpty. Operand 3031 states and 8647 transitions. [2022-03-03 17:08:26,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:26,556 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:26,556 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:26,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-03-03 17:08:26,556 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:26,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:26,556 INFO L85 PathProgramCache]: Analyzing trace with hash -52630960, now seen corresponding path program 77 times [2022-03-03 17:08:26,556 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:26,557 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861561071] [2022-03-03 17:08:26,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:26,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:26,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:26,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:26,761 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:26,761 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861561071] [2022-03-03 17:08:26,761 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861561071] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:26,761 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:26,761 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-03 17:08:26,761 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861800679] [2022-03-03 17:08:26,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:26,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-03 17:08:26,762 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:26,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-03 17:08:26,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:08:26,762 INFO L87 Difference]: Start difference. First operand 3031 states and 8647 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:26,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:26,977 INFO L93 Difference]: Finished difference Result 3031 states and 8623 transitions. [2022-03-03 17:08:26,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-03 17:08:26,977 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:26,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:26,981 INFO L225 Difference]: With dead ends: 3031 [2022-03-03 17:08:26,981 INFO L226 Difference]: Without dead ends: 2599 [2022-03-03 17:08:26,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:08:26,982 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 120 mSDsluCounter, 988 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:26,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 1019 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:08:26,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2599 states. [2022-03-03 17:08:27,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2599 to 2599. [2022-03-03 17:08:27,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2599 states, 2598 states have (on average 2.8437259430331023) internal successors, (7388), 2598 states have internal predecessors, (7388), 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) [2022-03-03 17:08:27,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2599 states to 2599 states and 7388 transitions. [2022-03-03 17:08:27,009 INFO L78 Accepts]: Start accepts. Automaton has 2599 states and 7388 transitions. Word has length 134 [2022-03-03 17:08:27,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:27,010 INFO L470 AbstractCegarLoop]: Abstraction has 2599 states and 7388 transitions. [2022-03-03 17:08:27,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:27,010 INFO L276 IsEmpty]: Start isEmpty. Operand 2599 states and 7388 transitions. [2022-03-03 17:08:27,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:27,013 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:27,013 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:27,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-03-03 17:08:27,013 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:27,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:27,013 INFO L85 PathProgramCache]: Analyzing trace with hash -373686130, now seen corresponding path program 78 times [2022-03-03 17:08:27,013 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:27,013 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326176451] [2022-03-03 17:08:27,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:27,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:27,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:27,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:27,204 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:27,204 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326176451] [2022-03-03 17:08:27,204 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326176451] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:27,204 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:27,204 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 17:08:27,204 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411838002] [2022-03-03 17:08:27,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:27,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 17:08:27,205 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:27,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 17:08:27,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:08:27,205 INFO L87 Difference]: Start difference. First operand 2599 states and 7388 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:27,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:27,363 INFO L93 Difference]: Finished difference Result 2323 states and 6491 transitions. [2022-03-03 17:08:27,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 17:08:27,363 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:27,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:27,366 INFO L225 Difference]: With dead ends: 2323 [2022-03-03 17:08:27,366 INFO L226 Difference]: Without dead ends: 1741 [2022-03-03 17:08:27,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:08:27,366 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 117 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:27,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 805 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:08:27,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1741 states. [2022-03-03 17:08:27,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1741 to 1741. [2022-03-03 17:08:27,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1741 states, 1740 states have (on average 2.8040229885057473) internal successors, (4879), 1740 states have internal predecessors, (4879), 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) [2022-03-03 17:08:27,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1741 states to 1741 states and 4879 transitions. [2022-03-03 17:08:27,386 INFO L78 Accepts]: Start accepts. Automaton has 1741 states and 4879 transitions. Word has length 134 [2022-03-03 17:08:27,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:27,386 INFO L470 AbstractCegarLoop]: Abstraction has 1741 states and 4879 transitions. [2022-03-03 17:08:27,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:27,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1741 states and 4879 transitions. [2022-03-03 17:08:27,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:27,388 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:27,388 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:27,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-03-03 17:08:27,388 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:27,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:27,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1160138798, now seen corresponding path program 79 times [2022-03-03 17:08:27,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:27,389 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914601725] [2022-03-03 17:08:27,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:27,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:27,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:27,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:27,538 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:27,539 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914601725] [2022-03-03 17:08:27,539 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914601725] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:27,539 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:27,539 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 17:08:27,539 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936250670] [2022-03-03 17:08:27,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:27,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 17:08:27,539 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:27,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 17:08:27,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:08:27,540 INFO L87 Difference]: Start difference. First operand 1741 states and 4879 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:27,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:27,761 INFO L93 Difference]: Finished difference Result 2109 states and 5783 transitions. [2022-03-03 17:08:27,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-03 17:08:27,761 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:27,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:27,763 INFO L225 Difference]: With dead ends: 2109 [2022-03-03 17:08:27,764 INFO L226 Difference]: Without dead ends: 1849 [2022-03-03 17:08:27,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:08:27,764 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 87 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:27,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 1044 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:08:27,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1849 states. [2022-03-03 17:08:27,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1849 to 1761. [2022-03-03 17:08:27,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1761 states, 1760 states have (on average 2.796590909090909) internal successors, (4922), 1760 states have internal predecessors, (4922), 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) [2022-03-03 17:08:27,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1761 states to 1761 states and 4922 transitions. [2022-03-03 17:08:27,783 INFO L78 Accepts]: Start accepts. Automaton has 1761 states and 4922 transitions. Word has length 134 [2022-03-03 17:08:27,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:27,783 INFO L470 AbstractCegarLoop]: Abstraction has 1761 states and 4922 transitions. [2022-03-03 17:08:27,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:27,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1761 states and 4922 transitions. [2022-03-03 17:08:27,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:27,786 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:27,786 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:27,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-03-03 17:08:27,786 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:27,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:27,786 INFO L85 PathProgramCache]: Analyzing trace with hash 262358674, now seen corresponding path program 80 times [2022-03-03 17:08:27,786 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:27,786 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202843592] [2022-03-03 17:08:27,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:27,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:27,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:27,942 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:27,942 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202843592] [2022-03-03 17:08:27,942 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202843592] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:27,942 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:27,942 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-03 17:08:27,942 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323976098] [2022-03-03 17:08:27,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:27,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-03 17:08:27,942 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:27,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-03 17:08:27,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:08:27,943 INFO L87 Difference]: Start difference. First operand 1761 states and 4922 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:28,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:28,095 INFO L93 Difference]: Finished difference Result 2001 states and 5586 transitions. [2022-03-03 17:08:28,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-03 17:08:28,095 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:28,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:28,098 INFO L225 Difference]: With dead ends: 2001 [2022-03-03 17:08:28,098 INFO L226 Difference]: Without dead ends: 1697 [2022-03-03 17:08:28,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-03-03 17:08:28,099 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 147 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:28,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 875 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:08:28,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2022-03-03 17:08:28,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1685. [2022-03-03 17:08:28,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1685 states, 1684 states have (on average 2.798693586698337) internal successors, (4713), 1684 states have internal predecessors, (4713), 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) [2022-03-03 17:08:28,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1685 states to 1685 states and 4713 transitions. [2022-03-03 17:08:28,116 INFO L78 Accepts]: Start accepts. Automaton has 1685 states and 4713 transitions. Word has length 134 [2022-03-03 17:08:28,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:28,116 INFO L470 AbstractCegarLoop]: Abstraction has 1685 states and 4713 transitions. [2022-03-03 17:08:28,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:28,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1685 states and 4713 transitions. [2022-03-03 17:08:28,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:28,118 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:28,118 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:28,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-03-03 17:08:28,119 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:28,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:28,119 INFO L85 PathProgramCache]: Analyzing trace with hash -889172696, now seen corresponding path program 81 times [2022-03-03 17:08:28,119 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:28,119 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717440398] [2022-03-03 17:08:28,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:28,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:28,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:28,313 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:28,313 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717440398] [2022-03-03 17:08:28,313 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717440398] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:28,313 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:28,313 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-03 17:08:28,313 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65740811] [2022-03-03 17:08:28,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:28,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-03 17:08:28,314 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:28,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-03 17:08:28,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:08:28,314 INFO L87 Difference]: Start difference. First operand 1685 states and 4713 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:28,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:28,550 INFO L93 Difference]: Finished difference Result 1913 states and 5336 transitions. [2022-03-03 17:08:28,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-03 17:08:28,550 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:28,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:28,552 INFO L225 Difference]: With dead ends: 1913 [2022-03-03 17:08:28,552 INFO L226 Difference]: Without dead ends: 1349 [2022-03-03 17:08:28,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-03-03 17:08:28,553 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 162 mSDsluCounter, 1129 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:28,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 1164 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:08:28,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1349 states. [2022-03-03 17:08:28,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 1349. [2022-03-03 17:08:28,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1349 states, 1348 states have (on average 2.814540059347181) internal successors, (3794), 1348 states have internal predecessors, (3794), 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) [2022-03-03 17:08:28,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1349 states to 1349 states and 3794 transitions. [2022-03-03 17:08:28,567 INFO L78 Accepts]: Start accepts. Automaton has 1349 states and 3794 transitions. Word has length 134 [2022-03-03 17:08:28,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:28,567 INFO L470 AbstractCegarLoop]: Abstraction has 1349 states and 3794 transitions. [2022-03-03 17:08:28,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:28,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1349 states and 3794 transitions. [2022-03-03 17:08:28,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:28,569 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:28,569 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:28,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-03-03 17:08:28,569 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:28,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:28,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1301648780, now seen corresponding path program 82 times [2022-03-03 17:08:28,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:28,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599038822] [2022-03-03 17:08:28,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:28,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:28,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:28,717 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:28,717 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599038822] [2022-03-03 17:08:28,717 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599038822] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:28,717 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:28,717 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 17:08:28,717 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382368990] [2022-03-03 17:08:28,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:28,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 17:08:28,718 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:28,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 17:08:28,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:08:28,718 INFO L87 Difference]: Start difference. First operand 1349 states and 3794 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:28,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:28,889 INFO L93 Difference]: Finished difference Result 2177 states and 6299 transitions. [2022-03-03 17:08:28,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-03 17:08:28,889 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:28,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:28,892 INFO L225 Difference]: With dead ends: 2177 [2022-03-03 17:08:28,892 INFO L226 Difference]: Without dead ends: 1865 [2022-03-03 17:08:28,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-03-03 17:08:28,892 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 129 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:28,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 836 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:08:28,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1865 states. [2022-03-03 17:08:28,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1865 to 1265. [2022-03-03 17:08:28,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1264 states have (on average 2.8093354430379747) internal successors, (3551), 1264 states have internal predecessors, (3551), 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) [2022-03-03 17:08:28,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 3551 transitions. [2022-03-03 17:08:28,906 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 3551 transitions. Word has length 134 [2022-03-03 17:08:28,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:28,906 INFO L470 AbstractCegarLoop]: Abstraction has 1265 states and 3551 transitions. [2022-03-03 17:08:28,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:28,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 3551 transitions. [2022-03-03 17:08:28,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:28,908 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:28,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:28,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-03-03 17:08:28,908 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:28,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:28,909 INFO L85 PathProgramCache]: Analyzing trace with hash -943940296, now seen corresponding path program 83 times [2022-03-03 17:08:28,909 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:28,909 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041182416] [2022-03-03 17:08:28,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:28,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:28,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:29,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:29,139 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:29,139 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041182416] [2022-03-03 17:08:29,139 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041182416] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:29,139 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:29,139 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-03 17:08:29,139 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647966506] [2022-03-03 17:08:29,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:29,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-03 17:08:29,140 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:29,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-03 17:08:29,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2022-03-03 17:08:29,140 INFO L87 Difference]: Start difference. First operand 1265 states and 3551 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:29,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:29,399 INFO L93 Difference]: Finished difference Result 1617 states and 4495 transitions. [2022-03-03 17:08:29,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 17:08:29,399 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:29,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:29,401 INFO L225 Difference]: With dead ends: 1617 [2022-03-03 17:08:29,401 INFO L226 Difference]: Without dead ends: 1317 [2022-03-03 17:08:29,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2022-03-03 17:08:29,402 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 154 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:29,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 943 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:08:29,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2022-03-03 17:08:29,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 1281. [2022-03-03 17:08:29,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1281 states, 1280 states have (on average 2.80546875) internal successors, (3591), 1280 states have internal predecessors, (3591), 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) [2022-03-03 17:08:29,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1281 states to 1281 states and 3591 transitions. [2022-03-03 17:08:29,418 INFO L78 Accepts]: Start accepts. Automaton has 1281 states and 3591 transitions. Word has length 134 [2022-03-03 17:08:29,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:29,419 INFO L470 AbstractCegarLoop]: Abstraction has 1281 states and 3591 transitions. [2022-03-03 17:08:29,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:29,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1281 states and 3591 transitions. [2022-03-03 17:08:29,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:29,420 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:29,420 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:29,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-03-03 17:08:29,421 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:29,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:29,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1296546248, now seen corresponding path program 84 times [2022-03-03 17:08:29,421 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:29,421 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268414081] [2022-03-03 17:08:29,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:29,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:29,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:29,612 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:29,613 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268414081] [2022-03-03 17:08:29,613 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268414081] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:29,613 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:29,613 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-03 17:08:29,613 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825729239] [2022-03-03 17:08:29,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:29,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-03 17:08:29,613 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:29,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-03 17:08:29,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-03-03 17:08:29,614 INFO L87 Difference]: Start difference. First operand 1281 states and 3591 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:29,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:29,773 INFO L93 Difference]: Finished difference Result 1965 states and 5652 transitions. [2022-03-03 17:08:29,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 17:08:29,773 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:29,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:29,775 INFO L225 Difference]: With dead ends: 1965 [2022-03-03 17:08:29,775 INFO L226 Difference]: Without dead ends: 1761 [2022-03-03 17:08:29,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-03-03 17:08:29,776 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 143 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:29,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 985 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:08:29,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1761 states. [2022-03-03 17:08:29,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1761 to 1365. [2022-03-03 17:08:29,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1365 states, 1364 states have (on average 2.7991202346041058) internal successors, (3818), 1364 states have internal predecessors, (3818), 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) [2022-03-03 17:08:29,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 3818 transitions. [2022-03-03 17:08:29,790 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 3818 transitions. Word has length 134 [2022-03-03 17:08:29,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:29,790 INFO L470 AbstractCegarLoop]: Abstraction has 1365 states and 3818 transitions. [2022-03-03 17:08:29,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:29,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 3818 transitions. [2022-03-03 17:08:29,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:29,792 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:29,792 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:29,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-03-03 17:08:29,792 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:29,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:29,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1001182776, now seen corresponding path program 85 times [2022-03-03 17:08:29,793 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:29,793 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211558274] [2022-03-03 17:08:29,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:29,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:29,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:29,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:29,993 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:29,993 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211558274] [2022-03-03 17:08:29,993 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211558274] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:29,993 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:29,993 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-03 17:08:29,993 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403214536] [2022-03-03 17:08:29,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:29,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-03 17:08:29,994 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:29,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-03 17:08:29,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-03-03 17:08:29,994 INFO L87 Difference]: Start difference. First operand 1365 states and 3818 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:30,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:30,222 INFO L93 Difference]: Finished difference Result 1365 states and 3794 transitions. [2022-03-03 17:08:30,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-03 17:08:30,222 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:30,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:30,224 INFO L225 Difference]: With dead ends: 1365 [2022-03-03 17:08:30,224 INFO L226 Difference]: Without dead ends: 1041 [2022-03-03 17:08:30,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2022-03-03 17:08:30,225 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 106 mSDsluCounter, 1003 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:30,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 1055 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:08:30,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2022-03-03 17:08:30,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 1041. [2022-03-03 17:08:30,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 1040 states have (on average 2.7528846153846156) internal successors, (2863), 1040 states have internal predecessors, (2863), 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) [2022-03-03 17:08:30,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 2863 transitions. [2022-03-03 17:08:30,239 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 2863 transitions. Word has length 134 [2022-03-03 17:08:30,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:30,239 INFO L470 AbstractCegarLoop]: Abstraction has 1041 states and 2863 transitions. [2022-03-03 17:08:30,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:30,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 2863 transitions. [2022-03-03 17:08:30,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-03 17:08:30,242 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:30,242 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:30,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-03-03 17:08:30,242 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-03 17:08:30,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:30,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1512829482, now seen corresponding path program 86 times [2022-03-03 17:08:30,243 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:30,243 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216237682] [2022-03-03 17:08:30,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:30,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:30,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:30,434 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:30,434 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216237682] [2022-03-03 17:08:30,434 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216237682] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:30,434 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:30,434 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-03 17:08:30,434 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860824102] [2022-03-03 17:08:30,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:30,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 17:08:30,435 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:30,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 17:08:30,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:08:30,435 INFO L87 Difference]: Start difference. First operand 1041 states and 2863 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:30,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:30,562 INFO L93 Difference]: Finished difference Result 402 states and 904 transitions. [2022-03-03 17:08:30,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 17:08:30,562 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-03-03 17:08:30,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:30,563 INFO L225 Difference]: With dead ends: 402 [2022-03-03 17:08:30,563 INFO L226 Difference]: Without dead ends: 0 [2022-03-03 17:08:30,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:08:30,563 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 108 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:30,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 697 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:08:30,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-03 17:08:30,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-03 17:08:30,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-03-03 17:08:30,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-03 17:08:30,564 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 134 [2022-03-03 17:08:30,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:30,564 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-03 17:08:30,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:30,564 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-03 17:08:30,564 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-03 17:08:30,566 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-03-03 17:08:30,567 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-03 17:08:30,567 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-03 17:08:30,567 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-03 17:08:30,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-03-03 17:08:30,569 INFO L732 BasicCegarLoop]: Path program histogram: [86] [2022-03-03 17:08:30,570 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-03 17:08:30,571 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-03 17:08:30,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 05:08:30 BasicIcfg [2022-03-03 17:08:30,576 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-03 17:08:30,576 INFO L158 Benchmark]: Toolchain (without parser) took 87299.38ms. Allocated memory was 190.8MB in the beginning and 7.9GB in the end (delta: 7.7GB). Free memory was 143.3MB in the beginning and 6.7GB in the end (delta: -6.6GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2022-03-03 17:08:30,576 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 190.8MB. Free memory is still 159.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-03 17:08:30,576 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.23ms. Allocated memory is still 190.8MB. Free memory was 143.0MB in the beginning and 166.7MB in the end (delta: -23.7MB). Peak memory consumption was 12.4MB. Max. memory is 8.0GB. [2022-03-03 17:08:30,576 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.42ms. Allocated memory is still 190.8MB. Free memory was 166.7MB in the beginning and 164.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-03 17:08:30,576 INFO L158 Benchmark]: Boogie Preprocessor took 20.07ms. Allocated memory is still 190.8MB. Free memory was 164.6MB in the beginning and 162.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-03 17:08:30,576 INFO L158 Benchmark]: RCFGBuilder took 555.65ms. Allocated memory is still 190.8MB. Free memory was 162.9MB in the beginning and 134.2MB in the end (delta: 28.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-03-03 17:08:30,576 INFO L158 Benchmark]: TraceAbstraction took 86455.69ms. Allocated memory was 190.8MB in the beginning and 7.9GB in the end (delta: 7.7GB). Free memory was 134.0MB in the beginning and 6.7GB in the end (delta: -6.6GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2022-03-03 17:08:30,577 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 190.8MB. Free memory is still 159.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 231.23ms. Allocated memory is still 190.8MB. Free memory was 143.0MB in the beginning and 166.7MB in the end (delta: -23.7MB). Peak memory consumption was 12.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.42ms. Allocated memory is still 190.8MB. Free memory was 166.7MB in the beginning and 164.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.07ms. Allocated memory is still 190.8MB. Free memory was 164.6MB in the beginning and 162.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 555.65ms. Allocated memory is still 190.8MB. Free memory was 162.9MB in the beginning and 134.2MB in the end (delta: 28.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * TraceAbstraction took 86455.69ms. Allocated memory was 190.8MB in the beginning and 7.9GB in the end (delta: 7.7GB). Free memory was 134.0MB in the beginning and 6.7GB in the end (delta: -6.6GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 196]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 199 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 86.3s, OverallIterations: 86, TraceHistogramMax: 1, PathProgramHistogramMax: 86, EmptinessCheckTime: 2.9s, AutomataDifference: 38.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.6s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22221 SdHoareTripleChecker+Valid, 20.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22221 mSDsluCounter, 89934 SdHoareTripleChecker+Invalid, 17.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 89540 mSDsCounter, 2460 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43343 IncrementalHoareTripleChecker+Invalid, 45803 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2460 mSolverCounterUnsat, 14775 mSDtfsCounter, 43343 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1490 GetRequests, 385 SyntacticMatches, 33 SemanticMatches, 1072 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2400 ImplicationChecksByTransitivity, 9.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26250occurred in iteration=24, InterpolantAutomatonStates: 1027, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 27.5s AutomataMinimizationTime, 86 MinimizatonAttempts, 209185 StatesRemovedByMinimization, 67 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 14.2s InterpolantComputationTime, 11524 NumberOfCodeBlocks, 11524 NumberOfCodeBlocksAsserted, 86 NumberOfCheckSat, 11438 ConstructedInterpolants, 0 QuantifiedInterpolants, 50985 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 86 InterpolantComputations, 86 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-03 17:08:30,608 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 0 Received shutdown request...