/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/chl-sre-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 13:51:47,417 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 13:51:47,418 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 13:51:47,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 13:51:47,472 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 13:51:47,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 13:51:47,473 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 13:51:47,474 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 [2022-03-15 13:51:47,491 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 13:51:47,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 13:51:47,492 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 13:51:47,492 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 13:51:47,492 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 13:51:47,492 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 13:51:47,493 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 13:51:47,493 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 13:51:47,493 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 13:51:47,493 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 13:51:47,493 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 13:51:47,493 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 13:51:47,493 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 13:51:47,493 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 13:51:47,493 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 13:51:47,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 13:51:47,494 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 13:51:47,494 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 13:51:47,494 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 13:51:47,494 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 13:51:47,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 13:51:47,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 13:51:47,494 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 13:51:47,494 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 13:51:47,526 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 13:51:47,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 13:51:47,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 13:51:47,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 13:51:47,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 13:51:47,526 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 13:51:47,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 13:51:47,527 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 13:51:47,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 13:51:47,527 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 13:51:47,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 13:51:47,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 13:51:47,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 13:51:47,694 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 13:51:47,696 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 13:51:47,696 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c [2022-03-15 13:51:47,751 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2de2b5392/3f73d8b7d01b4953a9e122710a5ba88d/FLAG82dbf50e2 [2022-03-15 13:51:48,130 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 13:51:48,131 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c [2022-03-15 13:51:48,135 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2de2b5392/3f73d8b7d01b4953a9e122710a5ba88d/FLAG82dbf50e2 [2022-03-15 13:51:48,143 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2de2b5392/3f73d8b7d01b4953a9e122710a5ba88d [2022-03-15 13:51:48,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 13:51:48,146 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 13:51:48,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 13:51:48,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 13:51:48,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 13:51:48,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:51:48" (1/1) ... [2022-03-15 13:51:48,150 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388803d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:51:48, skipping insertion in model container [2022-03-15 13:51:48,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:51:48" (1/1) ... [2022-03-15 13:51:48,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 13:51:48,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 13:51:48,308 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/chl-sre-subst.wvr.c[2333,2346] [2022-03-15 13:51:48,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 13:51:48,315 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 13:51:48,329 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/chl-sre-subst.wvr.c[2333,2346] [2022-03-15 13:51:48,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 13:51:48,338 INFO L208 MainTranslator]: Completed translation [2022-03-15 13:51:48,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:51:48 WrapperNode [2022-03-15 13:51:48,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 13:51:48,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 13:51:48,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 13:51:48,339 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 13:51:48,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:51:48" (1/1) ... [2022-03-15 13:51:48,349 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:51:48" (1/1) ... [2022-03-15 13:51:48,360 INFO L137 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2022-03-15 13:51:48,361 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 13:51:48,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 13:51:48,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 13:51:48,361 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 13:51:48,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:51:48" (1/1) ... [2022-03-15 13:51:48,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:51:48" (1/1) ... [2022-03-15 13:51:48,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:51:48" (1/1) ... [2022-03-15 13:51:48,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:51:48" (1/1) ... [2022-03-15 13:51:48,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:51:48" (1/1) ... [2022-03-15 13:51:48,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:51:48" (1/1) ... [2022-03-15 13:51:48,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:51:48" (1/1) ... [2022-03-15 13:51:48,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 13:51:48,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 13:51:48,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 13:51:48,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 13:51:48,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:51:48" (1/1) ... [2022-03-15 13:51:48,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 13:51:48,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 13:51:48,403 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) [2022-03-15 13:51:48,406 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 [2022-03-15 13:51:48,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 13:51:48,428 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 13:51:48,428 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 13:51:48,428 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 13:51:48,428 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 13:51:48,428 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-15 13:51:48,428 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-15 13:51:48,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 13:51:48,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 13:51:48,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 13:51:48,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 13:51:48,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 13:51:48,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 13:51:48,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 13:51:48,430 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 13:51:48,498 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 13:51:48,500 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 13:51:48,639 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 13:51:48,644 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 13:51:48,645 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 13:51:48,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:51:48 BoogieIcfgContainer [2022-03-15 13:51:48,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 13:51:48,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 13:51:48,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 13:51:48,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 13:51:48,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 01:51:48" (1/3) ... [2022-03-15 13:51:48,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@581e4e38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:51:48, skipping insertion in model container [2022-03-15 13:51:48,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:51:48" (2/3) ... [2022-03-15 13:51:48,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@581e4e38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:51:48, skipping insertion in model container [2022-03-15 13:51:48,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:51:48" (3/3) ... [2022-03-15 13:51:48,651 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-sre-subst.wvr.c [2022-03-15 13:51:48,654 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 13:51:48,654 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 13:51:48,654 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 13:51:48,654 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 13:51:48,685 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,686 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,686 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,686 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,687 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,687 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,687 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,687 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,687 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,687 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,688 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,688 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,688 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,688 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,688 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,688 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,688 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,688 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,689 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,689 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,690 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,690 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,691 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,691 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,691 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,691 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,691 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,692 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,692 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,692 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,692 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,692 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,692 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,692 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,692 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,693 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,693 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,693 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,693 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,693 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,694 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,694 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,695 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,695 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,695 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,696 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,696 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,696 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,696 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,696 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,696 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,696 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,697 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,697 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,697 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,697 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,697 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,697 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,697 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,697 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,700 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,700 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,700 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,700 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,702 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,702 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,702 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,703 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,704 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,704 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,704 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,704 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:51:48,709 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-15 13:51:48,748 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 13:51:48,759 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 [2022-03-15 13:51:48,759 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-15 13:51:48,770 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 126 places, 124 transitions, 272 flow [2022-03-15 13:51:49,051 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8364 states, 8363 states have (on average 3.829606600502212) internal successors, (32027), 8363 states have internal predecessors, (32027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:49,090 INFO L276 IsEmpty]: Start isEmpty. Operand has 8364 states, 8363 states have (on average 3.829606600502212) internal successors, (32027), 8363 states have internal predecessors, (32027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:49,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-03-15 13:51:49,185 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:49,186 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] [2022-03-15 13:51:49,187 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:51:49,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:49,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1667943660, now seen corresponding path program 1 times [2022-03-15 13:51:49,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:49,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229267759] [2022-03-15 13:51:49,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:49,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:49,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:49,588 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:49,588 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229267759] [2022-03-15 13:51:49,589 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229267759] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:49,589 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:49,589 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 13:51:49,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356296074] [2022-03-15 13:51:49,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:49,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 13:51:49,598 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:49,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 13:51:49,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-15 13:51:49,679 INFO L87 Difference]: Start difference. First operand has 8364 states, 8363 states have (on average 3.829606600502212) internal successors, (32027), 8363 states have internal predecessors, (32027), 0 states have call successors, (0), 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 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:50,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:50,103 INFO L93 Difference]: Finished difference Result 16531 states and 61711 transitions. [2022-03-15 13:51:50,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 13:51:50,106 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-03-15 13:51:50,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:50,234 INFO L225 Difference]: With dead ends: 16531 [2022-03-15 13:51:50,234 INFO L226 Difference]: Without dead ends: 13993 [2022-03-15 13:51:50,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2022-03-15 13:51:50,243 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 297 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:50,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [297 Valid, 926 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:50,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13993 states. [2022-03-15 13:51:50,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13993 to 9358. [2022-03-15 13:51:50,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9358 states, 9357 states have (on average 3.7627444693812118) internal successors, (35208), 9357 states have internal predecessors, (35208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:50,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9358 states to 9358 states and 35208 transitions. [2022-03-15 13:51:50,795 INFO L78 Accepts]: Start accepts. Automaton has 9358 states and 35208 transitions. Word has length 88 [2022-03-15 13:51:50,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:50,796 INFO L470 AbstractCegarLoop]: Abstraction has 9358 states and 35208 transitions. [2022-03-15 13:51:50,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:50,797 INFO L276 IsEmpty]: Start isEmpty. Operand 9358 states and 35208 transitions. [2022-03-15 13:51:50,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:51:50,825 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:50,825 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] [2022-03-15 13:51:50,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 13:51:50,826 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:51:50,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:50,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1637234185, now seen corresponding path program 1 times [2022-03-15 13:51:50,829 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:50,830 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956507410] [2022-03-15 13:51:50,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:50,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:51,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:51,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:51,283 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:51,283 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956507410] [2022-03-15 13:51:51,283 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956507410] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:51,286 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:51,286 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:51:51,286 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105149840] [2022-03-15 13:51:51,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:51,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:51:51,287 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:51,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:51:51,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:51:51,288 INFO L87 Difference]: Start difference. First operand 9358 states and 35208 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:51,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:51,861 INFO L93 Difference]: Finished difference Result 31067 states and 113011 transitions. [2022-03-15 13:51:51,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 13:51:51,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:51:51,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:52,089 INFO L225 Difference]: With dead ends: 31067 [2022-03-15 13:51:52,089 INFO L226 Difference]: Without dead ends: 31067 [2022-03-15 13:51:52,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-15 13:51:52,092 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 367 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:52,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [367 Valid, 475 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:52,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31067 states. [2022-03-15 13:51:52,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31067 to 12850. [2022-03-15 13:51:52,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12850 states, 12849 states have (on average 3.7403689003035256) internal successors, (48060), 12849 states have internal predecessors, (48060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:52,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12850 states to 12850 states and 48060 transitions. [2022-03-15 13:51:52,867 INFO L78 Accepts]: Start accepts. Automaton has 12850 states and 48060 transitions. Word has length 90 [2022-03-15 13:51:52,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:52,870 INFO L470 AbstractCegarLoop]: Abstraction has 12850 states and 48060 transitions. [2022-03-15 13:51:52,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:52,871 INFO L276 IsEmpty]: Start isEmpty. Operand 12850 states and 48060 transitions. [2022-03-15 13:51:52,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:51:52,921 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:52,921 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] [2022-03-15 13:51:52,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 13:51:52,922 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:51:52,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:52,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1275118121, now seen corresponding path program 1 times [2022-03-15 13:51:52,922 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:52,922 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337258387] [2022-03-15 13:51:52,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:52,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:53,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:53,116 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:53,116 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337258387] [2022-03-15 13:51:53,116 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337258387] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:53,116 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:53,116 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:51:53,117 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073894546] [2022-03-15 13:51:53,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:53,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:51:53,117 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:53,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:51:53,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:51:53,118 INFO L87 Difference]: Start difference. First operand 12850 states and 48060 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:53,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:53,754 INFO L93 Difference]: Finished difference Result 33967 states and 120003 transitions. [2022-03-15 13:51:53,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 13:51:53,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:51:53,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:53,951 INFO L225 Difference]: With dead ends: 33967 [2022-03-15 13:51:53,951 INFO L226 Difference]: Without dead ends: 32536 [2022-03-15 13:51:53,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-15 13:51:53,974 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 278 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:53,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [278 Valid, 646 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 13:51:54,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32536 states. [2022-03-15 13:51:54,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32536 to 14810. [2022-03-15 13:51:54,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14810 states, 14809 states have (on average 3.6470389627928963) internal successors, (54009), 14809 states have internal predecessors, (54009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:54,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14810 states to 14810 states and 54009 transitions. [2022-03-15 13:51:54,860 INFO L78 Accepts]: Start accepts. Automaton has 14810 states and 54009 transitions. Word has length 90 [2022-03-15 13:51:54,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:54,860 INFO L470 AbstractCegarLoop]: Abstraction has 14810 states and 54009 transitions. [2022-03-15 13:51:54,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:54,860 INFO L276 IsEmpty]: Start isEmpty. Operand 14810 states and 54009 transitions. [2022-03-15 13:51:54,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:51:54,898 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:54,898 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] [2022-03-15 13:51:54,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 13:51:54,899 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:51:54,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:54,899 INFO L85 PathProgramCache]: Analyzing trace with hash 477452055, now seen corresponding path program 1 times [2022-03-15 13:51:54,900 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:54,900 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158095560] [2022-03-15 13:51:54,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:54,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:54,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:54,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:54,985 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:54,985 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158095560] [2022-03-15 13:51:54,985 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158095560] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:54,985 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:54,985 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:51:54,985 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315281806] [2022-03-15 13:51:54,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:54,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:51:54,986 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:54,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:51:54,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:51:54,986 INFO L87 Difference]: Start difference. First operand 14810 states and 54009 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:55,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:55,390 INFO L93 Difference]: Finished difference Result 26701 states and 94202 transitions. [2022-03-15 13:51:55,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 13:51:55,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:51:55,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:55,485 INFO L225 Difference]: With dead ends: 26701 [2022-03-15 13:51:55,486 INFO L226 Difference]: Without dead ends: 26701 [2022-03-15 13:51:55,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:51:55,493 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 212 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:55,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 428 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:55,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26701 states. [2022-03-15 13:51:56,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26701 to 15721. [2022-03-15 13:51:56,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15721 states, 15720 states have (on average 3.6459923664122136) internal successors, (57315), 15720 states have internal predecessors, (57315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:56,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15721 states to 15721 states and 57315 transitions. [2022-03-15 13:51:56,121 INFO L78 Accepts]: Start accepts. Automaton has 15721 states and 57315 transitions. Word has length 90 [2022-03-15 13:51:56,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:56,122 INFO L470 AbstractCegarLoop]: Abstraction has 15721 states and 57315 transitions. [2022-03-15 13:51:56,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:56,122 INFO L276 IsEmpty]: Start isEmpty. Operand 15721 states and 57315 transitions. [2022-03-15 13:51:56,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:51:56,158 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:56,158 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] [2022-03-15 13:51:56,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 13:51:56,158 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:51:56,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:56,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1265044215, now seen corresponding path program 1 times [2022-03-15 13:51:56,159 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:56,159 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061601326] [2022-03-15 13:51:56,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:56,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:56,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:56,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:56,519 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:56,519 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061601326] [2022-03-15 13:51:56,519 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061601326] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:56,519 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:56,519 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:51:56,519 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536633302] [2022-03-15 13:51:56,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:56,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:51:56,520 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:56,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:51:56,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:51:56,521 INFO L87 Difference]: Start difference. First operand 15721 states and 57315 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:56,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:56,848 INFO L93 Difference]: Finished difference Result 37193 states and 129660 transitions. [2022-03-15 13:51:56,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 13:51:56,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:51:56,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:57,129 INFO L225 Difference]: With dead ends: 37193 [2022-03-15 13:51:57,129 INFO L226 Difference]: Without dead ends: 37193 [2022-03-15 13:51:57,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-15 13:51:57,130 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 278 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:57,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [278 Valid, 567 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:57,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37193 states. [2022-03-15 13:51:57,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37193 to 16772. [2022-03-15 13:51:57,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16772 states, 16771 states have (on average 3.635621012461988) internal successors, (60973), 16771 states have internal predecessors, (60973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:57,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16772 states to 16772 states and 60973 transitions. [2022-03-15 13:51:57,770 INFO L78 Accepts]: Start accepts. Automaton has 16772 states and 60973 transitions. Word has length 90 [2022-03-15 13:51:57,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:57,770 INFO L470 AbstractCegarLoop]: Abstraction has 16772 states and 60973 transitions. [2022-03-15 13:51:57,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:57,771 INFO L276 IsEmpty]: Start isEmpty. Operand 16772 states and 60973 transitions. [2022-03-15 13:51:57,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:51:57,806 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:57,806 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] [2022-03-15 13:51:57,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 13:51:57,806 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:51:57,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:57,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1319290505, now seen corresponding path program 2 times [2022-03-15 13:51:57,808 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:57,808 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664539581] [2022-03-15 13:51:57,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:57,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:57,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:57,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:57,953 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:57,953 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664539581] [2022-03-15 13:51:57,953 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664539581] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:57,954 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:57,954 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:51:57,954 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142160643] [2022-03-15 13:51:57,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:57,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:51:57,954 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:57,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:51:57,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:51:57,955 INFO L87 Difference]: Start difference. First operand 16772 states and 60973 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:58,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:58,488 INFO L93 Difference]: Finished difference Result 37317 states and 129876 transitions. [2022-03-15 13:51:58,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 13:51:58,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:51:58,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:58,605 INFO L225 Difference]: With dead ends: 37317 [2022-03-15 13:51:58,605 INFO L226 Difference]: Without dead ends: 37034 [2022-03-15 13:51:58,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-15 13:51:58,606 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 356 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:58,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 546 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:58,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37034 states. [2022-03-15 13:51:59,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37034 to 16476. [2022-03-15 13:51:59,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16476 states, 16475 states have (on average 3.6250682852807286) internal successors, (59723), 16475 states have internal predecessors, (59723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:59,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16476 states to 16476 states and 59723 transitions. [2022-03-15 13:51:59,242 INFO L78 Accepts]: Start accepts. Automaton has 16476 states and 59723 transitions. Word has length 90 [2022-03-15 13:51:59,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:51:59,242 INFO L470 AbstractCegarLoop]: Abstraction has 16476 states and 59723 transitions. [2022-03-15 13:51:59,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:59,242 INFO L276 IsEmpty]: Start isEmpty. Operand 16476 states and 59723 transitions. [2022-03-15 13:51:59,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:51:59,275 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:51:59,275 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] [2022-03-15 13:51:59,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 13:51:59,277 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:51:59,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:51:59,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1777486535, now seen corresponding path program 2 times [2022-03-15 13:51:59,277 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:51:59,277 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532693177] [2022-03-15 13:51:59,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:51:59,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:51:59,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:51:59,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:51:59,345 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:51:59,345 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532693177] [2022-03-15 13:51:59,345 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532693177] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:51:59,345 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:51:59,345 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:51:59,346 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190843816] [2022-03-15 13:51:59,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:51:59,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:51:59,346 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:51:59,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:51:59,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:51:59,346 INFO L87 Difference]: Start difference. First operand 16476 states and 59723 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:51:59,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:51:59,748 INFO L93 Difference]: Finished difference Result 26840 states and 93453 transitions. [2022-03-15 13:51:59,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 13:51:59,749 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:51:59,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:51:59,829 INFO L225 Difference]: With dead ends: 26840 [2022-03-15 13:51:59,829 INFO L226 Difference]: Without dead ends: 26305 [2022-03-15 13:51:59,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:51:59,830 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 215 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:51:59,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 410 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:51:59,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26305 states. [2022-03-15 13:52:00,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26305 to 15908. [2022-03-15 13:52:00,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15908 states, 15907 states have (on average 3.6090400452630917) internal successors, (57409), 15907 states have internal predecessors, (57409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:00,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15908 states to 15908 states and 57409 transitions. [2022-03-15 13:52:00,420 INFO L78 Accepts]: Start accepts. Automaton has 15908 states and 57409 transitions. Word has length 90 [2022-03-15 13:52:00,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:00,421 INFO L470 AbstractCegarLoop]: Abstraction has 15908 states and 57409 transitions. [2022-03-15 13:52:00,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:00,421 INFO L276 IsEmpty]: Start isEmpty. Operand 15908 states and 57409 transitions. [2022-03-15 13:52:00,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:00,489 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:00,489 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] [2022-03-15 13:52:00,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 13:52:00,489 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:00,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:00,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1447406297, now seen corresponding path program 3 times [2022-03-15 13:52:00,491 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:00,491 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993516459] [2022-03-15 13:52:00,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:00,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:00,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:00,587 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:00,587 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993516459] [2022-03-15 13:52:00,587 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993516459] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:00,587 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:00,587 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:00,587 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105427728] [2022-03-15 13:52:00,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:00,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:00,588 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:00,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:00,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:00,588 INFO L87 Difference]: Start difference. First operand 15908 states and 57409 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:00,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:00,840 INFO L93 Difference]: Finished difference Result 29208 states and 101977 transitions. [2022-03-15 13:52:00,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 13:52:00,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:00,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:01,147 INFO L225 Difference]: With dead ends: 29208 [2022-03-15 13:52:01,148 INFO L226 Difference]: Without dead ends: 28589 [2022-03-15 13:52:01,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:01,150 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 211 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:01,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 402 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:01,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28589 states. [2022-03-15 13:52:01,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28589 to 16259. [2022-03-15 13:52:01,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16259 states, 16258 states have (on average 3.605055972444335) internal successors, (58611), 16258 states have internal predecessors, (58611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:01,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16259 states to 16259 states and 58611 transitions. [2022-03-15 13:52:01,737 INFO L78 Accepts]: Start accepts. Automaton has 16259 states and 58611 transitions. Word has length 90 [2022-03-15 13:52:01,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:01,737 INFO L470 AbstractCegarLoop]: Abstraction has 16259 states and 58611 transitions. [2022-03-15 13:52:01,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:01,738 INFO L276 IsEmpty]: Start isEmpty. Operand 16259 states and 58611 transitions. [2022-03-15 13:52:01,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:01,768 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:01,768 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] [2022-03-15 13:52:01,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-15 13:52:01,768 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:01,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:01,769 INFO L85 PathProgramCache]: Analyzing trace with hash 820174889, now seen corresponding path program 2 times [2022-03-15 13:52:01,769 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:01,769 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787255669] [2022-03-15 13:52:01,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:01,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:01,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:01,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:01,859 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:01,859 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787255669] [2022-03-15 13:52:01,859 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787255669] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:01,859 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:01,859 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:01,859 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622417499] [2022-03-15 13:52:01,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:01,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:01,860 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:01,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:01,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:01,861 INFO L87 Difference]: Start difference. First operand 16259 states and 58611 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:02,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:02,121 INFO L93 Difference]: Finished difference Result 30724 states and 107071 transitions. [2022-03-15 13:52:02,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 13:52:02,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:02,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:02,209 INFO L225 Difference]: With dead ends: 30724 [2022-03-15 13:52:02,210 INFO L226 Difference]: Without dead ends: 30504 [2022-03-15 13:52:02,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-15 13:52:02,212 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 261 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:02,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 656 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:02,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30504 states. [2022-03-15 13:52:02,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30504 to 16290. [2022-03-15 13:52:02,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16290 states, 16289 states have (on average 3.60685124930935) internal successors, (58752), 16289 states have internal predecessors, (58752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:02,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16290 states to 16290 states and 58752 transitions. [2022-03-15 13:52:02,879 INFO L78 Accepts]: Start accepts. Automaton has 16290 states and 58752 transitions. Word has length 90 [2022-03-15 13:52:02,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:02,879 INFO L470 AbstractCegarLoop]: Abstraction has 16290 states and 58752 transitions. [2022-03-15 13:52:02,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:02,881 INFO L276 IsEmpty]: Start isEmpty. Operand 16290 states and 58752 transitions. [2022-03-15 13:52:02,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:02,917 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:02,917 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] [2022-03-15 13:52:02,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-15 13:52:02,917 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:02,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:02,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1861296441, now seen corresponding path program 2 times [2022-03-15 13:52:02,918 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:02,918 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705751991] [2022-03-15 13:52:02,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:02,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:02,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:03,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:03,114 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:03,114 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705751991] [2022-03-15 13:52:03,114 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705751991] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:03,114 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:03,114 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:03,114 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040422674] [2022-03-15 13:52:03,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:03,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:03,115 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:03,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:03,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:03,115 INFO L87 Difference]: Start difference. First operand 16290 states and 58752 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:03,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:03,409 INFO L93 Difference]: Finished difference Result 29725 states and 104381 transitions. [2022-03-15 13:52:03,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 13:52:03,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:03,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:03,514 INFO L225 Difference]: With dead ends: 29725 [2022-03-15 13:52:03,514 INFO L226 Difference]: Without dead ends: 29725 [2022-03-15 13:52:03,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:52:03,515 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 256 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:03,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [256 Valid, 524 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:03,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29725 states. [2022-03-15 13:52:04,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29725 to 16352. [2022-03-15 13:52:04,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16352 states, 16351 states have (on average 3.6066295639410435) internal successors, (58972), 16351 states have internal predecessors, (58972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:04,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16352 states to 16352 states and 58972 transitions. [2022-03-15 13:52:04,170 INFO L78 Accepts]: Start accepts. Automaton has 16352 states and 58972 transitions. Word has length 90 [2022-03-15 13:52:04,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:04,171 INFO L470 AbstractCegarLoop]: Abstraction has 16352 states and 58972 transitions. [2022-03-15 13:52:04,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:04,171 INFO L276 IsEmpty]: Start isEmpty. Operand 16352 states and 58972 transitions. [2022-03-15 13:52:04,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:04,208 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:04,208 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] [2022-03-15 13:52:04,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-15 13:52:04,208 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:04,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:04,209 INFO L85 PathProgramCache]: Analyzing trace with hash 602755675, now seen corresponding path program 3 times [2022-03-15 13:52:04,209 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:04,209 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842239971] [2022-03-15 13:52:04,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:04,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:04,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:04,310 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:04,310 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842239971] [2022-03-15 13:52:04,310 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842239971] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:04,310 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:04,311 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-15 13:52:04,311 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097790126] [2022-03-15 13:52:04,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:04,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 13:52:04,311 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:04,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 13:52:04,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-15 13:52:04,312 INFO L87 Difference]: Start difference. First operand 16352 states and 58972 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:04,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:04,530 INFO L93 Difference]: Finished difference Result 30416 states and 104654 transitions. [2022-03-15 13:52:04,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 13:52:04,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:04,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:04,746 INFO L225 Difference]: With dead ends: 30416 [2022-03-15 13:52:04,747 INFO L226 Difference]: Without dead ends: 28568 [2022-03-15 13:52:04,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-15 13:52:04,747 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 149 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:04,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 284 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:04,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28568 states. [2022-03-15 13:52:05,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28568 to 15578. [2022-03-15 13:52:05,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15578 states, 15577 states have (on average 3.6106438980548243) internal successors, (56243), 15577 states have internal predecessors, (56243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:05,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15578 states to 15578 states and 56243 transitions. [2022-03-15 13:52:05,120 INFO L78 Accepts]: Start accepts. Automaton has 15578 states and 56243 transitions. Word has length 90 [2022-03-15 13:52:05,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:05,121 INFO L470 AbstractCegarLoop]: Abstraction has 15578 states and 56243 transitions. [2022-03-15 13:52:05,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:05,121 INFO L276 IsEmpty]: Start isEmpty. Operand 15578 states and 56243 transitions. [2022-03-15 13:52:05,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:05,151 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:05,151 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] [2022-03-15 13:52:05,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-15 13:52:05,152 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:05,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:05,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1814195023, now seen corresponding path program 4 times [2022-03-15 13:52:05,152 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:05,152 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591394729] [2022-03-15 13:52:05,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:05,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:05,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:05,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:05,423 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:05,423 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591394729] [2022-03-15 13:52:05,423 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591394729] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:05,423 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:05,423 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:05,423 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663815273] [2022-03-15 13:52:05,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:05,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:05,424 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:05,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:05,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:05,424 INFO L87 Difference]: Start difference. First operand 15578 states and 56243 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:05,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:05,646 INFO L93 Difference]: Finished difference Result 28014 states and 98125 transitions. [2022-03-15 13:52:05,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 13:52:05,646 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:05,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:05,730 INFO L225 Difference]: With dead ends: 28014 [2022-03-15 13:52:05,730 INFO L226 Difference]: Without dead ends: 28014 [2022-03-15 13:52:05,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:05,731 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 152 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:05,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 437 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:05,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28014 states. [2022-03-15 13:52:06,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28014 to 15830. [2022-03-15 13:52:06,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15830 states, 15829 states have (on average 3.6123570661444186) internal successors, (57180), 15829 states have internal predecessors, (57180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:06,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15830 states to 15830 states and 57180 transitions. [2022-03-15 13:52:06,325 INFO L78 Accepts]: Start accepts. Automaton has 15830 states and 57180 transitions. Word has length 90 [2022-03-15 13:52:06,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:06,325 INFO L470 AbstractCegarLoop]: Abstraction has 15830 states and 57180 transitions. [2022-03-15 13:52:06,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:06,326 INFO L276 IsEmpty]: Start isEmpty. Operand 15830 states and 57180 transitions. [2022-03-15 13:52:06,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:06,362 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:06,362 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] [2022-03-15 13:52:06,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-15 13:52:06,363 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:06,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:06,363 INFO L85 PathProgramCache]: Analyzing trace with hash 236788975, now seen corresponding path program 3 times [2022-03-15 13:52:06,363 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:06,363 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976792090] [2022-03-15 13:52:06,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:06,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:06,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:06,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:06,477 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:06,478 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976792090] [2022-03-15 13:52:06,478 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976792090] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:06,478 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:06,478 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:06,478 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955426321] [2022-03-15 13:52:06,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:06,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:06,479 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:06,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:06,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:06,479 INFO L87 Difference]: Start difference. First operand 15830 states and 57180 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:06,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:06,705 INFO L93 Difference]: Finished difference Result 28238 states and 98905 transitions. [2022-03-15 13:52:06,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 13:52:06,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:06,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:06,993 INFO L225 Difference]: With dead ends: 28238 [2022-03-15 13:52:06,993 INFO L226 Difference]: Without dead ends: 28238 [2022-03-15 13:52:06,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:06,995 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 183 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:06,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 369 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:07,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28238 states. [2022-03-15 13:52:07,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28238 to 16054. [2022-03-15 13:52:07,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16054 states, 16053 states have (on average 3.61054008596524) internal successors, (57960), 16053 states have internal predecessors, (57960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:07,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16054 states to 16054 states and 57960 transitions. [2022-03-15 13:52:07,413 INFO L78 Accepts]: Start accepts. Automaton has 16054 states and 57960 transitions. Word has length 90 [2022-03-15 13:52:07,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:07,414 INFO L470 AbstractCegarLoop]: Abstraction has 16054 states and 57960 transitions. [2022-03-15 13:52:07,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:07,414 INFO L276 IsEmpty]: Start isEmpty. Operand 16054 states and 57960 transitions. [2022-03-15 13:52:07,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:07,445 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:07,445 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] [2022-03-15 13:52:07,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-15 13:52:07,446 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:07,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:07,446 INFO L85 PathProgramCache]: Analyzing trace with hash -668830069, now seen corresponding path program 5 times [2022-03-15 13:52:07,446 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:07,446 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818796575] [2022-03-15 13:52:07,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:07,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:07,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:07,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:07,711 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:07,711 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818796575] [2022-03-15 13:52:07,712 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818796575] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:07,712 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:07,712 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:07,712 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844184281] [2022-03-15 13:52:07,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:07,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:07,712 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:07,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:07,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:07,713 INFO L87 Difference]: Start difference. First operand 16054 states and 57960 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:07,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:07,990 INFO L93 Difference]: Finished difference Result 34328 states and 119879 transitions. [2022-03-15 13:52:07,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 13:52:07,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:07,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:08,088 INFO L225 Difference]: With dead ends: 34328 [2022-03-15 13:52:08,089 INFO L226 Difference]: Without dead ends: 34328 [2022-03-15 13:52:08,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:52:08,089 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 235 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:08,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 653 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:08,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34328 states. [2022-03-15 13:52:08,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34328 to 16054. [2022-03-15 13:52:08,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16054 states, 16053 states have (on average 3.61054008596524) internal successors, (57960), 16053 states have internal predecessors, (57960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:08,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16054 states to 16054 states and 57960 transitions. [2022-03-15 13:52:08,675 INFO L78 Accepts]: Start accepts. Automaton has 16054 states and 57960 transitions. Word has length 90 [2022-03-15 13:52:08,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:08,675 INFO L470 AbstractCegarLoop]: Abstraction has 16054 states and 57960 transitions. [2022-03-15 13:52:08,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:08,676 INFO L276 IsEmpty]: Start isEmpty. Operand 16054 states and 57960 transitions. [2022-03-15 13:52:08,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:08,708 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:08,708 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] [2022-03-15 13:52:08,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-15 13:52:08,709 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:08,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:08,709 INFO L85 PathProgramCache]: Analyzing trace with hash 2082142827, now seen corresponding path program 4 times [2022-03-15 13:52:08,709 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:08,709 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885037976] [2022-03-15 13:52:08,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:08,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:08,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:08,773 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:08,773 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885037976] [2022-03-15 13:52:08,773 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885037976] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:08,773 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:08,773 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:08,773 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989287165] [2022-03-15 13:52:08,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:08,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:08,773 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:08,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:08,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:08,774 INFO L87 Difference]: Start difference. First operand 16054 states and 57960 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:09,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:09,115 INFO L93 Difference]: Finished difference Result 30062 states and 104216 transitions. [2022-03-15 13:52:09,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 13:52:09,115 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:09,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:09,202 INFO L225 Difference]: With dead ends: 30062 [2022-03-15 13:52:09,202 INFO L226 Difference]: Without dead ends: 29495 [2022-03-15 13:52:09,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:09,206 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 252 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:09,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [252 Valid, 362 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:09,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29495 states. [2022-03-15 13:52:09,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29495 to 15869. [2022-03-15 13:52:09,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15869 states, 15868 states have (on average 3.5910007562389716) internal successors, (56982), 15868 states have internal predecessors, (56982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:09,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15869 states to 15869 states and 56982 transitions. [2022-03-15 13:52:09,699 INFO L78 Accepts]: Start accepts. Automaton has 15869 states and 56982 transitions. Word has length 90 [2022-03-15 13:52:09,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:09,699 INFO L470 AbstractCegarLoop]: Abstraction has 15869 states and 56982 transitions. [2022-03-15 13:52:09,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:09,700 INFO L276 IsEmpty]: Start isEmpty. Operand 15869 states and 56982 transitions. [2022-03-15 13:52:09,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:09,871 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:09,872 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] [2022-03-15 13:52:09,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-15 13:52:09,872 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:09,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:09,872 INFO L85 PathProgramCache]: Analyzing trace with hash -236270007, now seen corresponding path program 4 times [2022-03-15 13:52:09,872 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:09,872 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956842486] [2022-03-15 13:52:09,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:09,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:09,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:09,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:09,960 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:09,960 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956842486] [2022-03-15 13:52:09,962 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956842486] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:09,962 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:09,962 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:09,962 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32041637] [2022-03-15 13:52:09,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:09,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:09,962 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:09,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:09,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:09,963 INFO L87 Difference]: Start difference. First operand 15869 states and 56982 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:10,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:10,191 INFO L93 Difference]: Finished difference Result 28942 states and 100170 transitions. [2022-03-15 13:52:10,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 13:52:10,191 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:10,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:10,284 INFO L225 Difference]: With dead ends: 28942 [2022-03-15 13:52:10,284 INFO L226 Difference]: Without dead ends: 28275 [2022-03-15 13:52:10,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:52:10,285 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 227 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:10,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 478 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:10,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28275 states. [2022-03-15 13:52:10,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28275 to 16021. [2022-03-15 13:52:10,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16021 states, 16020 states have (on average 3.5888264669163545) internal successors, (57493), 16020 states have internal predecessors, (57493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:10,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16021 states to 16021 states and 57493 transitions. [2022-03-15 13:52:10,841 INFO L78 Accepts]: Start accepts. Automaton has 16021 states and 57493 transitions. Word has length 90 [2022-03-15 13:52:10,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:10,842 INFO L470 AbstractCegarLoop]: Abstraction has 16021 states and 57493 transitions. [2022-03-15 13:52:10,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:10,842 INFO L276 IsEmpty]: Start isEmpty. Operand 16021 states and 57493 transitions. [2022-03-15 13:52:10,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:10,873 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:10,873 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] [2022-03-15 13:52:10,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-15 13:52:10,874 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:10,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:10,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1771180783, now seen corresponding path program 5 times [2022-03-15 13:52:10,874 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:10,874 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785631250] [2022-03-15 13:52:10,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:10,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:10,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:10,925 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:10,926 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785631250] [2022-03-15 13:52:10,926 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785631250] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:10,926 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:10,926 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:10,926 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676016022] [2022-03-15 13:52:10,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:10,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:10,926 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:10,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:10,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:10,927 INFO L87 Difference]: Start difference. First operand 16021 states and 57493 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:11,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:11,141 INFO L93 Difference]: Finished difference Result 27978 states and 96996 transitions. [2022-03-15 13:52:11,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 13:52:11,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:11,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:11,223 INFO L225 Difference]: With dead ends: 27978 [2022-03-15 13:52:11,224 INFO L226 Difference]: Without dead ends: 27658 [2022-03-15 13:52:11,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:52:11,224 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 218 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:11,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 430 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:11,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27658 states. [2022-03-15 13:52:11,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27658 to 16121. [2022-03-15 13:52:11,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16121 states, 16120 states have (on average 3.5846153846153848) internal successors, (57784), 16120 states have internal predecessors, (57784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:11,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16121 states to 16121 states and 57784 transitions. [2022-03-15 13:52:11,755 INFO L78 Accepts]: Start accepts. Automaton has 16121 states and 57784 transitions. Word has length 90 [2022-03-15 13:52:11,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:11,756 INFO L470 AbstractCegarLoop]: Abstraction has 16121 states and 57784 transitions. [2022-03-15 13:52:11,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:11,756 INFO L276 IsEmpty]: Start isEmpty. Operand 16121 states and 57784 transitions. [2022-03-15 13:52:11,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:11,799 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:11,799 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] [2022-03-15 13:52:11,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-15 13:52:11,800 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:11,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:11,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1293091945, now seen corresponding path program 6 times [2022-03-15 13:52:11,800 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:11,800 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086999946] [2022-03-15 13:52:11,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:11,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:11,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:11,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:11,909 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:11,909 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086999946] [2022-03-15 13:52:11,909 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086999946] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:11,909 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:11,909 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:11,909 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112037375] [2022-03-15 13:52:11,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:11,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:11,909 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:11,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:11,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:11,910 INFO L87 Difference]: Start difference. First operand 16121 states and 57784 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:12,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:12,324 INFO L93 Difference]: Finished difference Result 27867 states and 96259 transitions. [2022-03-15 13:52:12,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 13:52:12,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:12,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:12,411 INFO L225 Difference]: With dead ends: 27867 [2022-03-15 13:52:12,412 INFO L226 Difference]: Without dead ends: 27867 [2022-03-15 13:52:12,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-15 13:52:12,412 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 247 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:12,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 659 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:12,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27867 states. [2022-03-15 13:52:12,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27867 to 15470. [2022-03-15 13:52:12,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15470 states, 15469 states have (on average 3.585493567780723) internal successors, (55464), 15469 states have internal predecessors, (55464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:13,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15470 states to 15470 states and 55464 transitions. [2022-03-15 13:52:13,016 INFO L78 Accepts]: Start accepts. Automaton has 15470 states and 55464 transitions. Word has length 90 [2022-03-15 13:52:13,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:13,017 INFO L470 AbstractCegarLoop]: Abstraction has 15470 states and 55464 transitions. [2022-03-15 13:52:13,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:13,017 INFO L276 IsEmpty]: Start isEmpty. Operand 15470 states and 55464 transitions. [2022-03-15 13:52:13,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:13,048 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:13,049 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] [2022-03-15 13:52:13,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-15 13:52:13,049 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:13,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:13,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1876444117, now seen corresponding path program 3 times [2022-03-15 13:52:13,049 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:13,049 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738380474] [2022-03-15 13:52:13,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:13,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:13,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:13,098 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:13,098 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738380474] [2022-03-15 13:52:13,098 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738380474] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:13,098 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:13,098 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:13,098 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083167267] [2022-03-15 13:52:13,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:13,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:13,098 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:13,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:13,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:13,099 INFO L87 Difference]: Start difference. First operand 15470 states and 55464 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:13,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:13,366 INFO L93 Difference]: Finished difference Result 28227 states and 97440 transitions. [2022-03-15 13:52:13,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 13:52:13,366 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:13,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:13,453 INFO L225 Difference]: With dead ends: 28227 [2022-03-15 13:52:13,453 INFO L226 Difference]: Without dead ends: 28227 [2022-03-15 13:52:13,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-15 13:52:13,454 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 256 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:13,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [256 Valid, 572 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:13,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28227 states. [2022-03-15 13:52:13,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28227 to 15430. [2022-03-15 13:52:13,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15430 states, 15429 states have (on average 3.5806597964871347) internal successors, (55246), 15429 states have internal predecessors, (55246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:14,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15430 states to 15430 states and 55246 transitions. [2022-03-15 13:52:14,049 INFO L78 Accepts]: Start accepts. Automaton has 15430 states and 55246 transitions. Word has length 90 [2022-03-15 13:52:14,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:14,049 INFO L470 AbstractCegarLoop]: Abstraction has 15430 states and 55246 transitions. [2022-03-15 13:52:14,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:14,049 INFO L276 IsEmpty]: Start isEmpty. Operand 15430 states and 55246 transitions. [2022-03-15 13:52:14,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:14,082 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:14,082 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] [2022-03-15 13:52:14,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-15 13:52:14,082 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:14,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:14,083 INFO L85 PathProgramCache]: Analyzing trace with hash -401241399, now seen corresponding path program 7 times [2022-03-15 13:52:14,083 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:14,083 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413733052] [2022-03-15 13:52:14,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:14,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:14,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:14,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:14,131 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:14,131 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413733052] [2022-03-15 13:52:14,131 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413733052] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:14,132 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:14,132 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:14,132 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450831974] [2022-03-15 13:52:14,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:14,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:14,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:14,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:14,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:14,132 INFO L87 Difference]: Start difference. First operand 15430 states and 55246 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:14,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:14,351 INFO L93 Difference]: Finished difference Result 27125 states and 93890 transitions. [2022-03-15 13:52:14,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 13:52:14,351 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:14,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:14,433 INFO L225 Difference]: With dead ends: 27125 [2022-03-15 13:52:14,433 INFO L226 Difference]: Without dead ends: 27125 [2022-03-15 13:52:14,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:52:14,434 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 267 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:14,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 510 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:14,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27125 states. [2022-03-15 13:52:14,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27125 to 15366. [2022-03-15 13:52:14,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15366 states, 15365 states have (on average 3.584119752684673) internal successors, (55070), 15365 states have internal predecessors, (55070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:14,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15366 states to 15366 states and 55070 transitions. [2022-03-15 13:52:14,939 INFO L78 Accepts]: Start accepts. Automaton has 15366 states and 55070 transitions. Word has length 90 [2022-03-15 13:52:14,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:14,940 INFO L470 AbstractCegarLoop]: Abstraction has 15366 states and 55070 transitions. [2022-03-15 13:52:14,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:14,940 INFO L276 IsEmpty]: Start isEmpty. Operand 15366 states and 55070 transitions. [2022-03-15 13:52:14,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:14,969 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:14,969 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] [2022-03-15 13:52:14,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-15 13:52:14,969 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:14,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:14,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1720416441, now seen corresponding path program 4 times [2022-03-15 13:52:14,970 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:14,970 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302681423] [2022-03-15 13:52:14,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:14,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:14,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:15,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:15,043 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:15,043 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302681423] [2022-03-15 13:52:15,043 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302681423] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:15,043 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:15,043 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:15,043 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603298145] [2022-03-15 13:52:15,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:15,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:15,044 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:15,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:15,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:15,044 INFO L87 Difference]: Start difference. First operand 15366 states and 55070 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:15,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:15,402 INFO L93 Difference]: Finished difference Result 28540 states and 97863 transitions. [2022-03-15 13:52:15,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 13:52:15,403 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:15,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:15,485 INFO L225 Difference]: With dead ends: 28540 [2022-03-15 13:52:15,486 INFO L226 Difference]: Without dead ends: 27914 [2022-03-15 13:52:15,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:52:15,487 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 272 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:15,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 474 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:15,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27914 states. [2022-03-15 13:52:15,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27914 to 15222. [2022-03-15 13:52:15,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15222 states, 15221 states have (on average 3.5728270153077983) internal successors, (54382), 15221 states have internal predecessors, (54382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:15,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15222 states to 15222 states and 54382 transitions. [2022-03-15 13:52:15,921 INFO L78 Accepts]: Start accepts. Automaton has 15222 states and 54382 transitions. Word has length 90 [2022-03-15 13:52:15,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:15,922 INFO L470 AbstractCegarLoop]: Abstraction has 15222 states and 54382 transitions. [2022-03-15 13:52:15,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:15,922 INFO L276 IsEmpty]: Start isEmpty. Operand 15222 states and 54382 transitions. [2022-03-15 13:52:16,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:16,070 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:16,070 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] [2022-03-15 13:52:16,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-15 13:52:16,071 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:16,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:16,071 INFO L85 PathProgramCache]: Analyzing trace with hash 525140649, now seen corresponding path program 5 times [2022-03-15 13:52:16,071 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:16,071 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610378145] [2022-03-15 13:52:16,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:16,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:16,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:16,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:16,152 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:16,152 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610378145] [2022-03-15 13:52:16,152 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610378145] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:16,152 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:16,152 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:16,153 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585122212] [2022-03-15 13:52:16,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:16,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:16,153 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:16,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:16,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:16,153 INFO L87 Difference]: Start difference. First operand 15222 states and 54382 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:16,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:16,372 INFO L93 Difference]: Finished difference Result 28088 states and 96520 transitions. [2022-03-15 13:52:16,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 13:52:16,373 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:16,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:16,458 INFO L225 Difference]: With dead ends: 28088 [2022-03-15 13:52:16,458 INFO L226 Difference]: Without dead ends: 27421 [2022-03-15 13:52:16,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:52:16,460 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 195 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:16,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 506 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:16,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27421 states. [2022-03-15 13:52:16,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27421 to 14465. [2022-03-15 13:52:16,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14465 states, 14464 states have (on average 3.572524889380531) internal successors, (51673), 14464 states have internal predecessors, (51673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:16,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14465 states to 14465 states and 51673 transitions. [2022-03-15 13:52:16,961 INFO L78 Accepts]: Start accepts. Automaton has 14465 states and 51673 transitions. Word has length 90 [2022-03-15 13:52:16,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:16,961 INFO L470 AbstractCegarLoop]: Abstraction has 14465 states and 51673 transitions. [2022-03-15 13:52:16,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:16,961 INFO L276 IsEmpty]: Start isEmpty. Operand 14465 states and 51673 transitions. [2022-03-15 13:52:16,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:16,990 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:16,991 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] [2022-03-15 13:52:16,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-15 13:52:16,991 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:16,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:16,992 INFO L85 PathProgramCache]: Analyzing trace with hash 131179825, now seen corresponding path program 6 times [2022-03-15 13:52:16,992 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:16,992 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589340315] [2022-03-15 13:52:16,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:16,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:17,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:17,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:17,084 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:17,084 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589340315] [2022-03-15 13:52:17,084 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589340315] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:17,084 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:17,084 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:17,084 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344023197] [2022-03-15 13:52:17,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:17,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:17,084 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:17,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:17,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:17,085 INFO L87 Difference]: Start difference. First operand 14465 states and 51673 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:17,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:17,284 INFO L93 Difference]: Finished difference Result 23066 states and 80182 transitions. [2022-03-15 13:52:17,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 13:52:17,285 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:17,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:17,343 INFO L225 Difference]: With dead ends: 23066 [2022-03-15 13:52:17,343 INFO L226 Difference]: Without dead ends: 23066 [2022-03-15 13:52:17,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:52:17,343 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 172 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:17,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 552 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:17,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23066 states. [2022-03-15 13:52:17,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23066 to 14601. [2022-03-15 13:52:17,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14601 states, 14600 states have (on average 3.572808219178082) internal successors, (52163), 14600 states have internal predecessors, (52163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:17,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14601 states to 14601 states and 52163 transitions. [2022-03-15 13:52:17,800 INFO L78 Accepts]: Start accepts. Automaton has 14601 states and 52163 transitions. Word has length 90 [2022-03-15 13:52:17,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:17,800 INFO L470 AbstractCegarLoop]: Abstraction has 14601 states and 52163 transitions. [2022-03-15 13:52:17,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:17,801 INFO L276 IsEmpty]: Start isEmpty. Operand 14601 states and 52163 transitions. [2022-03-15 13:52:17,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:17,831 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:17,831 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] [2022-03-15 13:52:17,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-15 13:52:17,831 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:17,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:17,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1461052049, now seen corresponding path program 8 times [2022-03-15 13:52:17,831 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:17,832 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700930229] [2022-03-15 13:52:17,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:17,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:17,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:17,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:17,885 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:17,885 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700930229] [2022-03-15 13:52:17,885 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700930229] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:17,885 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:17,885 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:17,885 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578867078] [2022-03-15 13:52:17,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:17,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:17,886 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:17,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:17,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:17,886 INFO L87 Difference]: Start difference. First operand 14601 states and 52163 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:18,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:18,077 INFO L93 Difference]: Finished difference Result 27439 states and 94946 transitions. [2022-03-15 13:52:18,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 13:52:18,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:18,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:18,158 INFO L225 Difference]: With dead ends: 27439 [2022-03-15 13:52:18,159 INFO L226 Difference]: Without dead ends: 27439 [2022-03-15 13:52:18,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:18,159 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 239 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:18,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 381 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:18,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27439 states. [2022-03-15 13:52:18,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27439 to 14657. [2022-03-15 13:52:18,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14657 states, 14656 states have (on average 3.5805813318777293) internal successors, (52477), 14656 states have internal predecessors, (52477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:18,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14657 states to 14657 states and 52477 transitions. [2022-03-15 13:52:18,731 INFO L78 Accepts]: Start accepts. Automaton has 14657 states and 52477 transitions. Word has length 90 [2022-03-15 13:52:18,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:18,731 INFO L470 AbstractCegarLoop]: Abstraction has 14657 states and 52477 transitions. [2022-03-15 13:52:18,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:18,732 INFO L276 IsEmpty]: Start isEmpty. Operand 14657 states and 52477 transitions. [2022-03-15 13:52:18,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:18,761 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:18,761 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] [2022-03-15 13:52:18,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-15 13:52:18,761 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:18,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:18,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1967540401, now seen corresponding path program 9 times [2022-03-15 13:52:18,762 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:18,762 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317148629] [2022-03-15 13:52:18,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:18,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:18,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:18,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:18,812 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:18,812 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317148629] [2022-03-15 13:52:18,812 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317148629] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:18,812 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:18,812 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:18,812 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235753612] [2022-03-15 13:52:18,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:18,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:18,813 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:18,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:18,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:18,814 INFO L87 Difference]: Start difference. First operand 14657 states and 52477 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:19,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:19,136 INFO L93 Difference]: Finished difference Result 26657 states and 92066 transitions. [2022-03-15 13:52:19,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 13:52:19,138 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:19,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:19,214 INFO L225 Difference]: With dead ends: 26657 [2022-03-15 13:52:19,214 INFO L226 Difference]: Without dead ends: 26657 [2022-03-15 13:52:19,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:19,214 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 184 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:19,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 450 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:19,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26657 states. [2022-03-15 13:52:19,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26657 to 14661. [2022-03-15 13:52:19,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14661 states, 14660 states have (on average 3.5806275579809004) internal successors, (52492), 14660 states have internal predecessors, (52492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:19,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14661 states to 14661 states and 52492 transitions. [2022-03-15 13:52:19,610 INFO L78 Accepts]: Start accepts. Automaton has 14661 states and 52492 transitions. Word has length 90 [2022-03-15 13:52:19,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:19,611 INFO L470 AbstractCegarLoop]: Abstraction has 14661 states and 52492 transitions. [2022-03-15 13:52:19,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:19,611 INFO L276 IsEmpty]: Start isEmpty. Operand 14661 states and 52492 transitions. [2022-03-15 13:52:19,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:19,639 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:19,639 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] [2022-03-15 13:52:19,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-15 13:52:19,639 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:19,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:19,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1299810223, now seen corresponding path program 7 times [2022-03-15 13:52:19,639 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:19,639 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063916535] [2022-03-15 13:52:19,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:19,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:19,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:19,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:19,693 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:19,693 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063916535] [2022-03-15 13:52:19,693 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063916535] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:19,693 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:19,693 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:19,693 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706170626] [2022-03-15 13:52:19,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:19,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:19,694 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:19,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:19,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:19,694 INFO L87 Difference]: Start difference. First operand 14661 states and 52492 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:19,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:19,995 INFO L93 Difference]: Finished difference Result 24445 states and 85722 transitions. [2022-03-15 13:52:19,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 13:52:19,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:19,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:20,061 INFO L225 Difference]: With dead ends: 24445 [2022-03-15 13:52:20,061 INFO L226 Difference]: Without dead ends: 24228 [2022-03-15 13:52:20,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:20,061 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 181 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:20,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 519 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:20,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24228 states. [2022-03-15 13:52:20,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24228 to 14657. [2022-03-15 13:52:20,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14657 states, 14656 states have (on average 3.5786708515283845) internal successors, (52449), 14656 states have internal predecessors, (52449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:20,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14657 states to 14657 states and 52449 transitions. [2022-03-15 13:52:20,436 INFO L78 Accepts]: Start accepts. Automaton has 14657 states and 52449 transitions. Word has length 90 [2022-03-15 13:52:20,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:20,436 INFO L470 AbstractCegarLoop]: Abstraction has 14657 states and 52449 transitions. [2022-03-15 13:52:20,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:20,437 INFO L276 IsEmpty]: Start isEmpty. Operand 14657 states and 52449 transitions. [2022-03-15 13:52:20,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:20,541 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:20,541 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] [2022-03-15 13:52:20,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-15 13:52:20,542 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:20,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:20,542 INFO L85 PathProgramCache]: Analyzing trace with hash 577965007, now seen corresponding path program 8 times [2022-03-15 13:52:20,542 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:20,542 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404491788] [2022-03-15 13:52:20,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:20,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:20,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:20,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:20,601 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:20,601 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404491788] [2022-03-15 13:52:20,601 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404491788] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:20,601 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:20,602 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:20,602 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814062594] [2022-03-15 13:52:20,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:20,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:20,602 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:20,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:20,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:20,602 INFO L87 Difference]: Start difference. First operand 14657 states and 52449 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:20,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:20,781 INFO L93 Difference]: Finished difference Result 22649 states and 79462 transitions. [2022-03-15 13:52:20,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 13:52:20,782 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:20,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:20,843 INFO L225 Difference]: With dead ends: 22649 [2022-03-15 13:52:20,843 INFO L226 Difference]: Without dead ends: 22649 [2022-03-15 13:52:20,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:20,844 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 180 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:20,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 430 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:20,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22649 states. [2022-03-15 13:52:21,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22649 to 14741. [2022-03-15 13:52:21,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14741 states, 14740 states have (on average 3.5883310719131614) internal successors, (52892), 14740 states have internal predecessors, (52892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:21,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14741 states to 14741 states and 52892 transitions. [2022-03-15 13:52:21,387 INFO L78 Accepts]: Start accepts. Automaton has 14741 states and 52892 transitions. Word has length 90 [2022-03-15 13:52:21,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:21,388 INFO L470 AbstractCegarLoop]: Abstraction has 14741 states and 52892 transitions. [2022-03-15 13:52:21,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:21,388 INFO L276 IsEmpty]: Start isEmpty. Operand 14741 states and 52892 transitions. [2022-03-15 13:52:21,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:21,422 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:21,422 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] [2022-03-15 13:52:21,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-15 13:52:21,422 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:21,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:21,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1342608609, now seen corresponding path program 10 times [2022-03-15 13:52:21,423 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:21,423 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330447112] [2022-03-15 13:52:21,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:21,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:21,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:21,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:21,503 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:21,503 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330447112] [2022-03-15 13:52:21,503 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330447112] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:21,503 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:21,503 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:21,503 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526752326] [2022-03-15 13:52:21,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:21,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:21,504 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:21,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:21,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:21,504 INFO L87 Difference]: Start difference. First operand 14741 states and 52892 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:21,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:21,728 INFO L93 Difference]: Finished difference Result 26443 states and 91330 transitions. [2022-03-15 13:52:21,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 13:52:21,728 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:21,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:21,802 INFO L225 Difference]: With dead ends: 26443 [2022-03-15 13:52:21,803 INFO L226 Difference]: Without dead ends: 26443 [2022-03-15 13:52:21,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:21,803 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 187 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:21,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 535 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:21,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26443 states. [2022-03-15 13:52:22,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26443 to 14573. [2022-03-15 13:52:22,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14573 states, 14572 states have (on average 3.5730167444413943) internal successors, (52066), 14572 states have internal predecessors, (52066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:22,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14573 states to 14573 states and 52066 transitions. [2022-03-15 13:52:22,359 INFO L78 Accepts]: Start accepts. Automaton has 14573 states and 52066 transitions. Word has length 90 [2022-03-15 13:52:22,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:22,360 INFO L470 AbstractCegarLoop]: Abstraction has 14573 states and 52066 transitions. [2022-03-15 13:52:22,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:22,360 INFO L276 IsEmpty]: Start isEmpty. Operand 14573 states and 52066 transitions. [2022-03-15 13:52:22,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:22,388 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:22,389 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] [2022-03-15 13:52:22,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-15 13:52:22,389 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:22,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:22,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1849096961, now seen corresponding path program 11 times [2022-03-15 13:52:22,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:22,389 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342773718] [2022-03-15 13:52:22,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:22,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:22,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:22,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:22,457 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:22,457 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342773718] [2022-03-15 13:52:22,457 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342773718] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:22,458 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:22,458 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:22,458 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277163759] [2022-03-15 13:52:22,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:22,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:22,459 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:22,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:22,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:22,459 INFO L87 Difference]: Start difference. First operand 14573 states and 52066 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:22,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:22,650 INFO L93 Difference]: Finished difference Result 29073 states and 99067 transitions. [2022-03-15 13:52:22,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 13:52:22,651 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:22,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:22,728 INFO L225 Difference]: With dead ends: 29073 [2022-03-15 13:52:22,728 INFO L226 Difference]: Without dead ends: 28475 [2022-03-15 13:52:22,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:22,729 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 303 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:22,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [303 Valid, 351 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:22,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28475 states. [2022-03-15 13:52:23,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28475 to 14360. [2022-03-15 13:52:23,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14360 states, 14359 states have (on average 3.555749007591058) internal successors, (51057), 14359 states have internal predecessors, (51057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:23,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14360 states to 14360 states and 51057 transitions. [2022-03-15 13:52:23,257 INFO L78 Accepts]: Start accepts. Automaton has 14360 states and 51057 transitions. Word has length 90 [2022-03-15 13:52:23,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:23,258 INFO L470 AbstractCegarLoop]: Abstraction has 14360 states and 51057 transitions. [2022-03-15 13:52:23,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:23,258 INFO L276 IsEmpty]: Start isEmpty. Operand 14360 states and 51057 transitions. [2022-03-15 13:52:23,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:23,285 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:23,286 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] [2022-03-15 13:52:23,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-15 13:52:23,286 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:23,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:23,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1418253663, now seen corresponding path program 9 times [2022-03-15 13:52:23,286 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:23,286 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865412138] [2022-03-15 13:52:23,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:23,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:23,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:23,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:23,360 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:23,360 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865412138] [2022-03-15 13:52:23,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865412138] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:23,360 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:23,360 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:23,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365604385] [2022-03-15 13:52:23,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:23,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:23,361 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:23,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:23,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:23,361 INFO L87 Difference]: Start difference. First operand 14360 states and 51057 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:23,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:23,546 INFO L93 Difference]: Finished difference Result 27730 states and 94399 transitions. [2022-03-15 13:52:23,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 13:52:23,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:23,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:23,619 INFO L225 Difference]: With dead ends: 27730 [2022-03-15 13:52:23,619 INFO L226 Difference]: Without dead ends: 27077 [2022-03-15 13:52:23,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:23,620 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 255 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:23,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 358 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:23,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27077 states. [2022-03-15 13:52:24,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27077 to 14424. [2022-03-15 13:52:24,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14424 states, 14423 states have (on average 3.5494002634680717) internal successors, (51193), 14423 states have internal predecessors, (51193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:24,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14424 states to 14424 states and 51193 transitions. [2022-03-15 13:52:24,154 INFO L78 Accepts]: Start accepts. Automaton has 14424 states and 51193 transitions. Word has length 90 [2022-03-15 13:52:24,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:24,154 INFO L470 AbstractCegarLoop]: Abstraction has 14424 states and 51193 transitions. [2022-03-15 13:52:24,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:24,154 INFO L276 IsEmpty]: Start isEmpty. Operand 14424 states and 51193 transitions. [2022-03-15 13:52:24,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:24,184 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:24,184 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] [2022-03-15 13:52:24,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-15 13:52:24,185 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:24,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:24,185 INFO L85 PathProgramCache]: Analyzing trace with hash 459521567, now seen corresponding path program 10 times [2022-03-15 13:52:24,185 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:24,185 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405250553] [2022-03-15 13:52:24,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:24,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:24,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:24,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:24,251 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:24,251 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405250553] [2022-03-15 13:52:24,251 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405250553] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:24,252 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:24,252 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:24,252 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990070230] [2022-03-15 13:52:24,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:24,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:24,252 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:24,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:24,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:24,252 INFO L87 Difference]: Start difference. First operand 14424 states and 51193 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:24,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:24,437 INFO L93 Difference]: Finished difference Result 26138 states and 88787 transitions. [2022-03-15 13:52:24,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 13:52:24,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:24,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:24,510 INFO L225 Difference]: With dead ends: 26138 [2022-03-15 13:52:24,511 INFO L226 Difference]: Without dead ends: 25782 [2022-03-15 13:52:24,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:24,511 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 187 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:24,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 437 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:24,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25782 states. [2022-03-15 13:52:24,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25782 to 13784. [2022-03-15 13:52:24,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13784 states, 13783 states have (on average 3.5122252049626352) internal successors, (48409), 13783 states have internal predecessors, (48409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:24,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13784 states to 13784 states and 48409 transitions. [2022-03-15 13:52:24,998 INFO L78 Accepts]: Start accepts. Automaton has 13784 states and 48409 transitions. Word has length 90 [2022-03-15 13:52:24,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:24,999 INFO L470 AbstractCegarLoop]: Abstraction has 13784 states and 48409 transitions. [2022-03-15 13:52:24,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:24,999 INFO L276 IsEmpty]: Start isEmpty. Operand 13784 states and 48409 transitions. [2022-03-15 13:52:25,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:25,027 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:25,027 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] [2022-03-15 13:52:25,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-15 13:52:25,027 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:25,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:25,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1473414877, now seen corresponding path program 12 times [2022-03-15 13:52:25,028 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:25,028 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221859895] [2022-03-15 13:52:25,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:25,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:25,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:25,074 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:25,074 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221859895] [2022-03-15 13:52:25,074 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221859895] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:25,074 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:25,074 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:25,074 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725153233] [2022-03-15 13:52:25,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:25,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:25,074 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:25,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:25,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:25,075 INFO L87 Difference]: Start difference. First operand 13784 states and 48409 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:25,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:25,414 INFO L93 Difference]: Finished difference Result 25707 states and 87117 transitions. [2022-03-15 13:52:25,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 13:52:25,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:25,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:25,481 INFO L225 Difference]: With dead ends: 25707 [2022-03-15 13:52:25,482 INFO L226 Difference]: Without dead ends: 25273 [2022-03-15 13:52:25,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:52:25,482 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 255 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:25,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 571 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:25,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25273 states. [2022-03-15 13:52:25,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25273 to 13744. [2022-03-15 13:52:25,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13744 states, 13743 states have (on average 3.509786800553009) internal successors, (48235), 13743 states have internal predecessors, (48235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:25,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13744 states to 13744 states and 48235 transitions. [2022-03-15 13:52:25,802 INFO L78 Accepts]: Start accepts. Automaton has 13744 states and 48235 transitions. Word has length 90 [2022-03-15 13:52:25,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:25,803 INFO L470 AbstractCegarLoop]: Abstraction has 13744 states and 48235 transitions. [2022-03-15 13:52:25,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:25,803 INFO L276 IsEmpty]: Start isEmpty. Operand 13744 states and 48235 transitions. [2022-03-15 13:52:25,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:25,829 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:25,829 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] [2022-03-15 13:52:25,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-15 13:52:25,829 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:25,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:25,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1491200925, now seen corresponding path program 6 times [2022-03-15 13:52:25,830 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:25,830 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752745852] [2022-03-15 13:52:25,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:25,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:25,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:25,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:25,891 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:25,891 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752745852] [2022-03-15 13:52:25,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752745852] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:25,891 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:25,891 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:25,891 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862078661] [2022-03-15 13:52:25,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:25,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:25,892 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:25,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:25,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:25,892 INFO L87 Difference]: Start difference. First operand 13744 states and 48235 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:26,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:26,181 INFO L93 Difference]: Finished difference Result 23004 states and 78787 transitions. [2022-03-15 13:52:26,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 13:52:26,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:26,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:26,238 INFO L225 Difference]: With dead ends: 23004 [2022-03-15 13:52:26,239 INFO L226 Difference]: Without dead ends: 23004 [2022-03-15 13:52:26,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:26,239 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 186 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:26,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 496 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:26,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23004 states. [2022-03-15 13:52:26,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23004 to 13744. [2022-03-15 13:52:26,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13744 states, 13743 states have (on average 3.509786800553009) internal successors, (48235), 13743 states have internal predecessors, (48235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:26,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13744 states to 13744 states and 48235 transitions. [2022-03-15 13:52:26,573 INFO L78 Accepts]: Start accepts. Automaton has 13744 states and 48235 transitions. Word has length 90 [2022-03-15 13:52:26,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:26,573 INFO L470 AbstractCegarLoop]: Abstraction has 13744 states and 48235 transitions. [2022-03-15 13:52:26,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:26,573 INFO L276 IsEmpty]: Start isEmpty. Operand 13744 states and 48235 transitions. [2022-03-15 13:52:26,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:26,599 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:26,599 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] [2022-03-15 13:52:26,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-15 13:52:26,599 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:26,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:26,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1705567293, now seen corresponding path program 5 times [2022-03-15 13:52:26,600 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:26,600 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449258423] [2022-03-15 13:52:26,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:26,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:26,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:26,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:26,651 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:26,651 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449258423] [2022-03-15 13:52:26,652 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449258423] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:26,652 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:26,652 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:26,652 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806049722] [2022-03-15 13:52:26,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:26,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:26,652 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:26,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:26,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:26,652 INFO L87 Difference]: Start difference. First operand 13744 states and 48235 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:26,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:26,824 INFO L93 Difference]: Finished difference Result 25761 states and 87783 transitions. [2022-03-15 13:52:26,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 13:52:26,824 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:26,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:26,892 INFO L225 Difference]: With dead ends: 25761 [2022-03-15 13:52:26,892 INFO L226 Difference]: Without dead ends: 25761 [2022-03-15 13:52:26,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:26,892 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 216 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:26,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 406 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:26,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25761 states. [2022-03-15 13:52:27,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25761 to 13744. [2022-03-15 13:52:27,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13744 states, 13743 states have (on average 3.509786800553009) internal successors, (48235), 13743 states have internal predecessors, (48235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:27,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13744 states to 13744 states and 48235 transitions. [2022-03-15 13:52:27,276 INFO L78 Accepts]: Start accepts. Automaton has 13744 states and 48235 transitions. Word has length 90 [2022-03-15 13:52:27,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:27,277 INFO L470 AbstractCegarLoop]: Abstraction has 13744 states and 48235 transitions. [2022-03-15 13:52:27,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:27,277 INFO L276 IsEmpty]: Start isEmpty. Operand 13744 states and 48235 transitions. [2022-03-15 13:52:27,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:27,305 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:27,305 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] [2022-03-15 13:52:27,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-15 13:52:27,306 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:27,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:27,306 INFO L85 PathProgramCache]: Analyzing trace with hash -826567585, now seen corresponding path program 7 times [2022-03-15 13:52:27,306 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:27,306 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791969434] [2022-03-15 13:52:27,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:27,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:27,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:27,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:27,354 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:27,354 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791969434] [2022-03-15 13:52:27,354 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791969434] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:27,354 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:27,354 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:27,354 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036316188] [2022-03-15 13:52:27,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:27,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:27,355 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:27,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:27,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:27,355 INFO L87 Difference]: Start difference. First operand 13744 states and 48235 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:27,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:27,529 INFO L93 Difference]: Finished difference Result 25149 states and 85351 transitions. [2022-03-15 13:52:27,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 13:52:27,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:27,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:27,596 INFO L225 Difference]: With dead ends: 25149 [2022-03-15 13:52:27,597 INFO L226 Difference]: Without dead ends: 25149 [2022-03-15 13:52:27,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:27,597 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 258 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:27,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 393 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:27,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25149 states. [2022-03-15 13:52:27,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25149 to 13528. [2022-03-15 13:52:27,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13528 states, 13527 states have (on average 3.4956013898129665) internal successors, (47285), 13527 states have internal predecessors, (47285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:27,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13528 states to 13528 states and 47285 transitions. [2022-03-15 13:52:27,966 INFO L78 Accepts]: Start accepts. Automaton has 13528 states and 47285 transitions. Word has length 90 [2022-03-15 13:52:27,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:27,966 INFO L470 AbstractCegarLoop]: Abstraction has 13528 states and 47285 transitions. [2022-03-15 13:52:27,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:27,966 INFO L276 IsEmpty]: Start isEmpty. Operand 13528 states and 47285 transitions. [2022-03-15 13:52:27,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:27,994 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:27,994 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] [2022-03-15 13:52:27,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-15 13:52:27,995 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:27,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:27,995 INFO L85 PathProgramCache]: Analyzing trace with hash -287671169, now seen corresponding path program 6 times [2022-03-15 13:52:27,995 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:27,995 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076395454] [2022-03-15 13:52:27,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:27,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:28,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:28,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:28,046 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:28,047 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076395454] [2022-03-15 13:52:28,047 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076395454] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:28,047 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:28,047 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:28,047 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425140937] [2022-03-15 13:52:28,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:28,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:28,049 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:28,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:28,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:28,050 INFO L87 Difference]: Start difference. First operand 13528 states and 47285 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:28,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:28,215 INFO L93 Difference]: Finished difference Result 25502 states and 86390 transitions. [2022-03-15 13:52:28,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 13:52:28,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:28,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:28,282 INFO L225 Difference]: With dead ends: 25502 [2022-03-15 13:52:28,283 INFO L226 Difference]: Without dead ends: 25282 [2022-03-15 13:52:28,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:28,283 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 277 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:28,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 347 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:28,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25282 states. [2022-03-15 13:52:28,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25282 to 13496. [2022-03-15 13:52:28,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13496 states, 13495 states have (on average 3.4911448684698034) internal successors, (47113), 13495 states have internal predecessors, (47113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:28,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13496 states to 13496 states and 47113 transitions. [2022-03-15 13:52:28,647 INFO L78 Accepts]: Start accepts. Automaton has 13496 states and 47113 transitions. Word has length 90 [2022-03-15 13:52:28,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:28,647 INFO L470 AbstractCegarLoop]: Abstraction has 13496 states and 47113 transitions. [2022-03-15 13:52:28,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:28,647 INFO L276 IsEmpty]: Start isEmpty. Operand 13496 states and 47113 transitions. [2022-03-15 13:52:28,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:28,673 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:28,673 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] [2022-03-15 13:52:28,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-15 13:52:28,673 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:28,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:28,674 INFO L85 PathProgramCache]: Analyzing trace with hash 916817341, now seen corresponding path program 8 times [2022-03-15 13:52:28,674 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:28,674 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724559056] [2022-03-15 13:52:28,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:28,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:28,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:28,722 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:28,722 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724559056] [2022-03-15 13:52:28,722 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724559056] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:28,723 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:28,723 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:28,723 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090257317] [2022-03-15 13:52:28,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:28,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:28,723 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:28,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:28,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:28,724 INFO L87 Difference]: Start difference. First operand 13496 states and 47113 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:28,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:28,900 INFO L93 Difference]: Finished difference Result 23184 states and 78535 transitions. [2022-03-15 13:52:28,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 13:52:28,900 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:28,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:28,961 INFO L225 Difference]: With dead ends: 23184 [2022-03-15 13:52:28,961 INFO L226 Difference]: Without dead ends: 23184 [2022-03-15 13:52:28,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:52:28,962 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 174 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:28,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 522 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:28,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23184 states. [2022-03-15 13:52:29,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23184 to 13268. [2022-03-15 13:52:29,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13268 states, 13267 states have (on average 3.474334815708148) internal successors, (46094), 13267 states have internal predecessors, (46094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:29,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13268 states to 13268 states and 46094 transitions. [2022-03-15 13:52:29,326 INFO L78 Accepts]: Start accepts. Automaton has 13268 states and 46094 transitions. Word has length 90 [2022-03-15 13:52:29,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:29,326 INFO L470 AbstractCegarLoop]: Abstraction has 13268 states and 46094 transitions. [2022-03-15 13:52:29,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:29,327 INFO L276 IsEmpty]: Start isEmpty. Operand 13268 states and 46094 transitions. [2022-03-15 13:52:29,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-15 13:52:29,352 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:29,352 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] [2022-03-15 13:52:29,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-15 13:52:29,353 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:29,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:29,353 INFO L85 PathProgramCache]: Analyzing trace with hash 558413823, now seen corresponding path program 7 times [2022-03-15 13:52:29,353 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:29,353 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911256241] [2022-03-15 13:52:29,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:29,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:29,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:29,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:29,413 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:29,413 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911256241] [2022-03-15 13:52:29,413 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911256241] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:29,413 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:29,413 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:52:29,413 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860229985] [2022-03-15 13:52:29,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:29,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:52:29,414 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:29,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:52:29,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:52:29,415 INFO L87 Difference]: Start difference. First operand 13268 states and 46094 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:29,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:29,587 INFO L93 Difference]: Finished difference Result 23649 states and 79636 transitions. [2022-03-15 13:52:29,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 13:52:29,587 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-03-15 13:52:29,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:29,646 INFO L225 Difference]: With dead ends: 23649 [2022-03-15 13:52:29,646 INFO L226 Difference]: Without dead ends: 23649 [2022-03-15 13:52:29,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:52:29,647 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 175 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:29,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 465 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:29,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23649 states. [2022-03-15 13:52:29,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23649 to 13012. [2022-03-15 13:52:29,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13012 states, 13011 states have (on average 3.4566136346168626) internal successors, (44974), 13011 states have internal predecessors, (44974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:30,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13012 states to 13012 states and 44974 transitions. [2022-03-15 13:52:30,021 INFO L78 Accepts]: Start accepts. Automaton has 13012 states and 44974 transitions. Word has length 90 [2022-03-15 13:52:30,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:30,021 INFO L470 AbstractCegarLoop]: Abstraction has 13012 states and 44974 transitions. [2022-03-15 13:52:30,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:30,021 INFO L276 IsEmpty]: Start isEmpty. Operand 13012 states and 44974 transitions. [2022-03-15 13:52:30,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:30,046 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:30,046 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] [2022-03-15 13:52:30,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-15 13:52:30,047 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:30,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:30,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1496254150, now seen corresponding path program 1 times [2022-03-15 13:52:30,047 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:30,047 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557114983] [2022-03-15 13:52:30,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:30,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:30,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:30,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:30,134 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:30,135 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557114983] [2022-03-15 13:52:30,135 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557114983] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:30,135 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:30,135 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:30,135 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834993301] [2022-03-15 13:52:30,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:30,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:30,135 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:30,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:30,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:30,136 INFO L87 Difference]: Start difference. First operand 13012 states and 44974 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:30,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:30,476 INFO L93 Difference]: Finished difference Result 19066 states and 64696 transitions. [2022-03-15 13:52:30,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-15 13:52:30,476 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:30,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:30,522 INFO L225 Difference]: With dead ends: 19066 [2022-03-15 13:52:30,522 INFO L226 Difference]: Without dead ends: 16544 [2022-03-15 13:52:30,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=572, Unknown=0, NotChecked=0, Total=756 [2022-03-15 13:52:30,523 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 418 mSDsluCounter, 1609 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:30,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [418 Valid, 1779 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:30,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16544 states. [2022-03-15 13:52:30,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16544 to 12999. [2022-03-15 13:52:30,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12999 states, 12998 states have (on average 3.439683028158178) internal successors, (44709), 12998 states have internal predecessors, (44709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:30,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12999 states to 12999 states and 44709 transitions. [2022-03-15 13:52:30,801 INFO L78 Accepts]: Start accepts. Automaton has 12999 states and 44709 transitions. Word has length 92 [2022-03-15 13:52:30,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:30,801 INFO L470 AbstractCegarLoop]: Abstraction has 12999 states and 44709 transitions. [2022-03-15 13:52:30,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:30,801 INFO L276 IsEmpty]: Start isEmpty. Operand 12999 states and 44709 transitions. [2022-03-15 13:52:30,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:30,826 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:30,826 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] [2022-03-15 13:52:30,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-15 13:52:30,826 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:30,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:30,827 INFO L85 PathProgramCache]: Analyzing trace with hash -83108978, now seen corresponding path program 2 times [2022-03-15 13:52:30,827 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:30,827 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877439232] [2022-03-15 13:52:30,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:30,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:30,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:30,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:30,956 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:30,956 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877439232] [2022-03-15 13:52:30,956 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877439232] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:30,956 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:30,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:30,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340402021] [2022-03-15 13:52:30,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:30,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:30,957 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:30,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:30,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:30,957 INFO L87 Difference]: Start difference. First operand 12999 states and 44709 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:31,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:31,325 INFO L93 Difference]: Finished difference Result 17567 states and 60101 transitions. [2022-03-15 13:52:31,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-15 13:52:31,325 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:31,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:31,365 INFO L225 Difference]: With dead ends: 17567 [2022-03-15 13:52:31,366 INFO L226 Difference]: Without dead ends: 15889 [2022-03-15 13:52:31,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2022-03-15 13:52:31,366 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 317 mSDsluCounter, 1619 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 1773 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:31,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [317 Valid, 1773 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:31,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15889 states. [2022-03-15 13:52:31,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15889 to 13046. [2022-03-15 13:52:31,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13046 states, 13045 states have (on average 3.4367190494442315) internal successors, (44832), 13045 states have internal predecessors, (44832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:31,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13046 states to 13046 states and 44832 transitions. [2022-03-15 13:52:31,676 INFO L78 Accepts]: Start accepts. Automaton has 13046 states and 44832 transitions. Word has length 92 [2022-03-15 13:52:31,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:31,676 INFO L470 AbstractCegarLoop]: Abstraction has 13046 states and 44832 transitions. [2022-03-15 13:52:31,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:31,676 INFO L276 IsEmpty]: Start isEmpty. Operand 13046 states and 44832 transitions. [2022-03-15 13:52:31,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:31,705 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:31,706 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] [2022-03-15 13:52:31,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-15 13:52:31,706 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:31,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:31,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1556950310, now seen corresponding path program 3 times [2022-03-15 13:52:31,706 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:31,707 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563676221] [2022-03-15 13:52:31,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:31,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:31,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:31,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:31,792 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:31,792 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563676221] [2022-03-15 13:52:31,792 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563676221] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:31,792 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:31,792 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:31,792 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643536795] [2022-03-15 13:52:31,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:31,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:31,792 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:31,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:31,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:31,793 INFO L87 Difference]: Start difference. First operand 13046 states and 44832 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:32,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:32,046 INFO L93 Difference]: Finished difference Result 16800 states and 57445 transitions. [2022-03-15 13:52:32,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 13:52:32,046 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:32,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:32,088 INFO L225 Difference]: With dead ends: 16800 [2022-03-15 13:52:32,088 INFO L226 Difference]: Without dead ends: 15363 [2022-03-15 13:52:32,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:52:32,089 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 210 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 1406 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:32,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 1406 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:32,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15363 states. [2022-03-15 13:52:32,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15363 to 13093. [2022-03-15 13:52:32,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13093 states, 13092 states have (on average 3.433776351970669) internal successors, (44955), 13092 states have internal predecessors, (44955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:32,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13093 states to 13093 states and 44955 transitions. [2022-03-15 13:52:32,408 INFO L78 Accepts]: Start accepts. Automaton has 13093 states and 44955 transitions. Word has length 92 [2022-03-15 13:52:32,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:32,408 INFO L470 AbstractCegarLoop]: Abstraction has 13093 states and 44955 transitions. [2022-03-15 13:52:32,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:32,408 INFO L276 IsEmpty]: Start isEmpty. Operand 13093 states and 44955 transitions. [2022-03-15 13:52:32,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:32,435 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:32,435 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] [2022-03-15 13:52:32,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-15 13:52:32,436 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:32,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:32,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1361812084, now seen corresponding path program 4 times [2022-03-15 13:52:32,436 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:32,436 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671250783] [2022-03-15 13:52:32,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:32,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:32,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:32,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:32,516 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:32,517 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671250783] [2022-03-15 13:52:32,517 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671250783] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:32,517 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:32,517 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:32,517 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121552614] [2022-03-15 13:52:32,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:32,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:32,517 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:32,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:32,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:32,518 INFO L87 Difference]: Start difference. First operand 13093 states and 44955 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:32,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:32,833 INFO L93 Difference]: Finished difference Result 16521 states and 56431 transitions. [2022-03-15 13:52:32,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:52:32,833 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:32,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:32,874 INFO L225 Difference]: With dead ends: 16521 [2022-03-15 13:52:32,874 INFO L226 Difference]: Without dead ends: 14820 [2022-03-15 13:52:32,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:52:32,875 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 242 mSDsluCounter, 1740 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 1882 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:32,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 1882 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:32,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14820 states. [2022-03-15 13:52:33,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14820 to 12832. [2022-03-15 13:52:33,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12832 states, 12831 states have (on average 3.4392486945678433) internal successors, (44129), 12831 states have internal predecessors, (44129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:33,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12832 states to 12832 states and 44129 transitions. [2022-03-15 13:52:33,220 INFO L78 Accepts]: Start accepts. Automaton has 12832 states and 44129 transitions. Word has length 92 [2022-03-15 13:52:33,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:33,221 INFO L470 AbstractCegarLoop]: Abstraction has 12832 states and 44129 transitions. [2022-03-15 13:52:33,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:33,221 INFO L276 IsEmpty]: Start isEmpty. Operand 12832 states and 44129 transitions. [2022-03-15 13:52:33,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:33,248 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:33,248 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] [2022-03-15 13:52:33,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-15 13:52:33,248 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:33,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:33,248 INFO L85 PathProgramCache]: Analyzing trace with hash 2100778648, now seen corresponding path program 5 times [2022-03-15 13:52:33,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:33,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835287053] [2022-03-15 13:52:33,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:33,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:33,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:33,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:33,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:33,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835287053] [2022-03-15 13:52:33,334 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835287053] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:33,334 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:33,334 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:33,334 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039124670] [2022-03-15 13:52:33,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:33,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:33,335 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:33,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:33,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:33,335 INFO L87 Difference]: Start difference. First operand 12832 states and 44129 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:33,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:33,635 INFO L93 Difference]: Finished difference Result 17573 states and 60171 transitions. [2022-03-15 13:52:33,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-15 13:52:33,636 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:33,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:33,691 INFO L225 Difference]: With dead ends: 17573 [2022-03-15 13:52:33,691 INFO L226 Difference]: Without dead ends: 15901 [2022-03-15 13:52:33,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-15 13:52:33,692 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 270 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 1654 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:33,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 1654 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:33,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15901 states. [2022-03-15 13:52:33,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15901 to 12926. [2022-03-15 13:52:33,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12926 states, 12925 states have (on average 3.4369052224371375) internal successors, (44422), 12925 states have internal predecessors, (44422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:33,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12926 states to 12926 states and 44422 transitions. [2022-03-15 13:52:33,962 INFO L78 Accepts]: Start accepts. Automaton has 12926 states and 44422 transitions. Word has length 92 [2022-03-15 13:52:33,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:33,962 INFO L470 AbstractCegarLoop]: Abstraction has 12926 states and 44422 transitions. [2022-03-15 13:52:33,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:33,963 INFO L276 IsEmpty]: Start isEmpty. Operand 12926 states and 44422 transitions. [2022-03-15 13:52:33,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:33,987 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:33,987 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] [2022-03-15 13:52:33,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-15 13:52:33,987 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:33,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:33,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1020834292, now seen corresponding path program 6 times [2022-03-15 13:52:33,988 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:33,988 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051242497] [2022-03-15 13:52:33,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:33,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:34,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:34,070 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:34,070 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051242497] [2022-03-15 13:52:34,070 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051242497] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:34,070 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:34,070 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:34,070 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366221065] [2022-03-15 13:52:34,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:34,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:34,071 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:34,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:34,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:34,071 INFO L87 Difference]: Start difference. First operand 12926 states and 44422 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:34,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:34,342 INFO L93 Difference]: Finished difference Result 17244 states and 59075 transitions. [2022-03-15 13:52:34,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:52:34,342 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:34,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:34,384 INFO L225 Difference]: With dead ends: 17244 [2022-03-15 13:52:34,384 INFO L226 Difference]: Without dead ends: 15807 [2022-03-15 13:52:34,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:52:34,385 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 221 mSDsluCounter, 1399 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 1549 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:34,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 1549 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:34,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15807 states. [2022-03-15 13:52:34,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15807 to 12973. [2022-03-15 13:52:34,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12973 states, 12972 states have (on average 3.4339346284304657) internal successors, (44545), 12972 states have internal predecessors, (44545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:34,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12973 states to 12973 states and 44545 transitions. [2022-03-15 13:52:34,707 INFO L78 Accepts]: Start accepts. Automaton has 12973 states and 44545 transitions. Word has length 92 [2022-03-15 13:52:34,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:34,707 INFO L470 AbstractCegarLoop]: Abstraction has 12973 states and 44545 transitions. [2022-03-15 13:52:34,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:34,708 INFO L276 IsEmpty]: Start isEmpty. Operand 12973 states and 44545 transitions. [2022-03-15 13:52:34,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:34,736 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:34,736 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] [2022-03-15 13:52:34,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-15 13:52:34,736 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:34,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:34,738 INFO L85 PathProgramCache]: Analyzing trace with hash 355370610, now seen corresponding path program 7 times [2022-03-15 13:52:34,738 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:34,738 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988580538] [2022-03-15 13:52:34,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:34,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:34,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:34,826 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:34,826 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988580538] [2022-03-15 13:52:34,826 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988580538] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:34,826 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:34,826 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:34,826 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108517078] [2022-03-15 13:52:34,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:34,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:34,828 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:34,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:34,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:34,828 INFO L87 Difference]: Start difference. First operand 12973 states and 44545 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:35,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:35,099 INFO L93 Difference]: Finished difference Result 16965 states and 58061 transitions. [2022-03-15 13:52:35,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:52:35,100 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:35,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:35,144 INFO L225 Difference]: With dead ends: 16965 [2022-03-15 13:52:35,144 INFO L226 Difference]: Without dead ends: 15431 [2022-03-15 13:52:35,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:52:35,145 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 208 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 1542 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:35,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 1542 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:35,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15431 states. [2022-03-15 13:52:35,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15431 to 12879. [2022-03-15 13:52:35,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12879 states, 12878 states have (on average 3.4362478645752446) internal successors, (44252), 12878 states have internal predecessors, (44252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:35,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12879 states to 12879 states and 44252 transitions. [2022-03-15 13:52:35,549 INFO L78 Accepts]: Start accepts. Automaton has 12879 states and 44252 transitions. Word has length 92 [2022-03-15 13:52:35,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:35,549 INFO L470 AbstractCegarLoop]: Abstraction has 12879 states and 44252 transitions. [2022-03-15 13:52:35,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:35,549 INFO L276 IsEmpty]: Start isEmpty. Operand 12879 states and 44252 transitions. [2022-03-15 13:52:35,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:35,572 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:35,572 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] [2022-03-15 13:52:35,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-15 13:52:35,573 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:35,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:35,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1124152634, now seen corresponding path program 8 times [2022-03-15 13:52:35,573 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:35,573 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541004432] [2022-03-15 13:52:35,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:35,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:35,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:35,657 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:35,657 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541004432] [2022-03-15 13:52:35,657 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541004432] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:35,657 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:35,658 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:35,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902334470] [2022-03-15 13:52:35,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:35,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:35,658 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:35,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:35,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:35,658 INFO L87 Difference]: Start difference. First operand 12879 states and 44252 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:35,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:35,966 INFO L93 Difference]: Finished difference Result 17447 states and 59644 transitions. [2022-03-15 13:52:35,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:52:35,967 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:35,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:36,009 INFO L225 Difference]: With dead ends: 17447 [2022-03-15 13:52:36,009 INFO L226 Difference]: Without dead ends: 15769 [2022-03-15 13:52:36,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-03-15 13:52:36,010 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 284 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 1832 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:36,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 1832 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:36,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15769 states. [2022-03-15 13:52:36,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15769 to 12926. [2022-03-15 13:52:36,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12926 states, 12925 states have (on average 3.4332688588007736) internal successors, (44375), 12925 states have internal predecessors, (44375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:36,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12926 states to 12926 states and 44375 transitions. [2022-03-15 13:52:36,416 INFO L78 Accepts]: Start accepts. Automaton has 12926 states and 44375 transitions. Word has length 92 [2022-03-15 13:52:36,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:36,416 INFO L470 AbstractCegarLoop]: Abstraction has 12926 states and 44375 transitions. [2022-03-15 13:52:36,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:36,416 INFO L276 IsEmpty]: Start isEmpty. Operand 12926 states and 44375 transitions. [2022-03-15 13:52:36,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:36,441 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:36,441 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] [2022-03-15 13:52:36,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-15 13:52:36,441 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:36,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:36,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1530755374, now seen corresponding path program 9 times [2022-03-15 13:52:36,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:36,442 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719301480] [2022-03-15 13:52:36,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:36,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:36,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:36,514 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:36,514 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719301480] [2022-03-15 13:52:36,514 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719301480] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:36,515 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:36,515 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:36,515 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347211869] [2022-03-15 13:52:36,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:36,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:36,515 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:36,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:36,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:36,515 INFO L87 Difference]: Start difference. First operand 12926 states and 44375 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:36,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:36,790 INFO L93 Difference]: Finished difference Result 16821 states and 57498 transitions. [2022-03-15 13:52:36,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:52:36,790 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:36,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:36,831 INFO L225 Difference]: With dead ends: 16821 [2022-03-15 13:52:36,831 INFO L226 Difference]: Without dead ends: 15384 [2022-03-15 13:52:36,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:52:36,832 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 211 mSDsluCounter, 1489 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:36,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 1632 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:36,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15384 states. [2022-03-15 13:52:37,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15384 to 12973. [2022-03-15 13:52:37,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12973 states, 12972 states have (on average 3.4303114400246684) internal successors, (44498), 12972 states have internal predecessors, (44498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:37,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12973 states to 12973 states and 44498 transitions. [2022-03-15 13:52:37,099 INFO L78 Accepts]: Start accepts. Automaton has 12973 states and 44498 transitions. Word has length 92 [2022-03-15 13:52:37,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:37,099 INFO L470 AbstractCegarLoop]: Abstraction has 12973 states and 44498 transitions. [2022-03-15 13:52:37,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:37,099 INFO L276 IsEmpty]: Start isEmpty. Operand 12973 states and 44498 transitions. [2022-03-15 13:52:37,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:37,125 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:37,125 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] [2022-03-15 13:52:37,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-15 13:52:37,126 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:37,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:37,126 INFO L85 PathProgramCache]: Analyzing trace with hash -154550472, now seen corresponding path program 10 times [2022-03-15 13:52:37,126 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:37,126 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639706199] [2022-03-15 13:52:37,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:37,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:37,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:37,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:37,205 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:37,205 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639706199] [2022-03-15 13:52:37,206 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639706199] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:37,206 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:37,206 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:37,206 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640567694] [2022-03-15 13:52:37,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:37,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:37,206 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:37,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:37,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:37,206 INFO L87 Difference]: Start difference. First operand 12973 states and 44498 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:37,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:37,466 INFO L93 Difference]: Finished difference Result 16401 states and 55974 transitions. [2022-03-15 13:52:37,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:52:37,466 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:37,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:37,503 INFO L225 Difference]: With dead ends: 16401 [2022-03-15 13:52:37,503 INFO L226 Difference]: Without dead ends: 14653 [2022-03-15 13:52:37,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:52:37,504 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 219 mSDsluCounter, 1493 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 1631 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:37,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 1631 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:37,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14653 states. [2022-03-15 13:52:37,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14653 to 12665. [2022-03-15 13:52:37,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12665 states, 12664 states have (on average 3.438802905874921) internal successors, (43549), 12664 states have internal predecessors, (43549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:37,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12665 states to 12665 states and 43549 transitions. [2022-03-15 13:52:37,769 INFO L78 Accepts]: Start accepts. Automaton has 12665 states and 43549 transitions. Word has length 92 [2022-03-15 13:52:37,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:37,770 INFO L470 AbstractCegarLoop]: Abstraction has 12665 states and 43549 transitions. [2022-03-15 13:52:37,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:37,770 INFO L276 IsEmpty]: Start isEmpty. Operand 12665 states and 43549 transitions. [2022-03-15 13:52:37,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:37,795 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:37,795 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] [2022-03-15 13:52:37,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-15 13:52:37,795 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:37,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:37,796 INFO L85 PathProgramCache]: Analyzing trace with hash -2070974740, now seen corresponding path program 11 times [2022-03-15 13:52:37,796 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:37,796 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248718657] [2022-03-15 13:52:37,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:37,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:37,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:37,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:37,868 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:37,868 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248718657] [2022-03-15 13:52:37,868 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248718657] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:37,868 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:37,869 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:37,869 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681201263] [2022-03-15 13:52:37,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:37,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:37,869 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:37,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:37,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:37,869 INFO L87 Difference]: Start difference. First operand 12665 states and 43549 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:38,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:38,170 INFO L93 Difference]: Finished difference Result 17557 states and 60220 transitions. [2022-03-15 13:52:38,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:52:38,171 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:38,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:38,212 INFO L225 Difference]: With dead ends: 17557 [2022-03-15 13:52:38,212 INFO L226 Difference]: Without dead ends: 15885 [2022-03-15 13:52:38,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-03-15 13:52:38,213 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 300 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:38,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 1634 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:38,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15885 states. [2022-03-15 13:52:38,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15885 to 12751. [2022-03-15 13:52:38,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12751 states, 12750 states have (on average 3.436235294117647) internal successors, (43812), 12750 states have internal predecessors, (43812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:38,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12751 states to 12751 states and 43812 transitions. [2022-03-15 13:52:38,481 INFO L78 Accepts]: Start accepts. Automaton has 12751 states and 43812 transitions. Word has length 92 [2022-03-15 13:52:38,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:38,481 INFO L470 AbstractCegarLoop]: Abstraction has 12751 states and 43812 transitions. [2022-03-15 13:52:38,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:38,481 INFO L276 IsEmpty]: Start isEmpty. Operand 12751 states and 43812 transitions. [2022-03-15 13:52:38,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:38,506 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:38,506 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] [2022-03-15 13:52:38,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-15 13:52:38,507 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:38,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:38,507 INFO L85 PathProgramCache]: Analyzing trace with hash -897620384, now seen corresponding path program 12 times [2022-03-15 13:52:38,507 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:38,507 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126291948] [2022-03-15 13:52:38,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:38,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:38,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:38,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:38,582 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:38,582 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126291948] [2022-03-15 13:52:38,582 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126291948] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:38,582 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:38,582 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:38,582 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618113916] [2022-03-15 13:52:38,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:38,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:38,582 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:38,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:38,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:38,583 INFO L87 Difference]: Start difference. First operand 12751 states and 43812 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:38,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:38,859 INFO L93 Difference]: Finished difference Result 17087 states and 58614 transitions. [2022-03-15 13:52:38,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:52:38,859 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:38,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:38,898 INFO L225 Difference]: With dead ends: 17087 [2022-03-15 13:52:38,898 INFO L226 Difference]: Without dead ends: 15650 [2022-03-15 13:52:38,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:52:38,899 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 234 mSDsluCounter, 1609 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 1742 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:38,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 1742 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:38,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15650 states. [2022-03-15 13:52:39,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15650 to 12798. [2022-03-15 13:52:39,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12798 states, 12797 states have (on average 3.4332265374697193) internal successors, (43935), 12797 states have internal predecessors, (43935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:39,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12798 states to 12798 states and 43935 transitions. [2022-03-15 13:52:39,160 INFO L78 Accepts]: Start accepts. Automaton has 12798 states and 43935 transitions. Word has length 92 [2022-03-15 13:52:39,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:39,160 INFO L470 AbstractCegarLoop]: Abstraction has 12798 states and 43935 transitions. [2022-03-15 13:52:39,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:39,160 INFO L276 IsEmpty]: Start isEmpty. Operand 12798 states and 43935 transitions. [2022-03-15 13:52:39,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:39,187 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:39,187 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] [2022-03-15 13:52:39,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-15 13:52:39,187 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:39,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:39,187 INFO L85 PathProgramCache]: Analyzing trace with hash 478584518, now seen corresponding path program 13 times [2022-03-15 13:52:39,188 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:39,188 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903721488] [2022-03-15 13:52:39,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:39,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:39,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:39,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:39,263 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:39,263 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903721488] [2022-03-15 13:52:39,263 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903721488] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:39,263 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:39,263 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:39,263 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770780373] [2022-03-15 13:52:39,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:39,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:39,264 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:39,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:39,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:39,264 INFO L87 Difference]: Start difference. First operand 12798 states and 43935 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:39,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:39,531 INFO L93 Difference]: Finished difference Result 16808 states and 57600 transitions. [2022-03-15 13:52:39,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:52:39,531 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:39,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:39,569 INFO L225 Difference]: With dead ends: 16808 [2022-03-15 13:52:39,569 INFO L226 Difference]: Without dead ends: 15274 [2022-03-15 13:52:39,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:52:39,569 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 191 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:39,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 1641 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:39,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15274 states. [2022-03-15 13:52:39,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15274 to 12704. [2022-03-15 13:52:39,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12704 states, 12703 states have (on average 3.4355664016374083) internal successors, (43642), 12703 states have internal predecessors, (43642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:39,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12704 states to 12704 states and 43642 transitions. [2022-03-15 13:52:39,831 INFO L78 Accepts]: Start accepts. Automaton has 12704 states and 43642 transitions. Word has length 92 [2022-03-15 13:52:39,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:39,831 INFO L470 AbstractCegarLoop]: Abstraction has 12704 states and 43642 transitions. [2022-03-15 13:52:39,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:39,832 INFO L276 IsEmpty]: Start isEmpty. Operand 12704 states and 43642 transitions. [2022-03-15 13:52:39,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:39,856 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:39,856 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] [2022-03-15 13:52:39,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-15 13:52:39,856 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:39,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:39,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1247366542, now seen corresponding path program 14 times [2022-03-15 13:52:39,856 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:39,857 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238328723] [2022-03-15 13:52:39,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:39,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:39,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:39,924 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:39,924 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238328723] [2022-03-15 13:52:39,924 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238328723] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:39,924 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:39,924 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:39,924 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539771359] [2022-03-15 13:52:39,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:39,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:39,924 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:39,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:39,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:39,925 INFO L87 Difference]: Start difference. First operand 12704 states and 43642 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:40,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:40,193 INFO L93 Difference]: Finished difference Result 16912 states and 57835 transitions. [2022-03-15 13:52:40,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-15 13:52:40,193 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:40,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:40,237 INFO L225 Difference]: With dead ends: 16912 [2022-03-15 13:52:40,237 INFO L226 Difference]: Without dead ends: 15234 [2022-03-15 13:52:40,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-15 13:52:40,238 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 256 mSDsluCounter, 1293 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 1441 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:40,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [256 Valid, 1441 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:40,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15234 states. [2022-03-15 13:52:40,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15234 to 12751. [2022-03-15 13:52:40,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12751 states, 12750 states have (on average 3.432549019607843) internal successors, (43765), 12750 states have internal predecessors, (43765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:40,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12751 states to 12751 states and 43765 transitions. [2022-03-15 13:52:40,503 INFO L78 Accepts]: Start accepts. Automaton has 12751 states and 43765 transitions. Word has length 92 [2022-03-15 13:52:40,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:40,503 INFO L470 AbstractCegarLoop]: Abstraction has 12751 states and 43765 transitions. [2022-03-15 13:52:40,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:40,503 INFO L276 IsEmpty]: Start isEmpty. Operand 12751 states and 43765 transitions. [2022-03-15 13:52:40,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:40,527 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:40,527 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] [2022-03-15 13:52:40,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-15 13:52:40,528 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:40,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:40,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1407541466, now seen corresponding path program 15 times [2022-03-15 13:52:40,528 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:40,528 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363675887] [2022-03-15 13:52:40,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:40,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:40,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:40,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:40,606 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:40,606 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363675887] [2022-03-15 13:52:40,606 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363675887] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:40,606 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:40,606 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:40,606 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199468682] [2022-03-15 13:52:40,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:40,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:40,606 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:40,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:40,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:40,607 INFO L87 Difference]: Start difference. First operand 12751 states and 43765 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:40,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:40,856 INFO L93 Difference]: Finished difference Result 16640 states and 56955 transitions. [2022-03-15 13:52:40,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:52:40,857 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:40,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:40,896 INFO L225 Difference]: With dead ends: 16640 [2022-03-15 13:52:40,896 INFO L226 Difference]: Without dead ends: 15203 [2022-03-15 13:52:40,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:52:40,897 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 226 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 1604 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:40,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 1604 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:40,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15203 states. [2022-03-15 13:52:41,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15203 to 12798. [2022-03-15 13:52:41,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12798 states, 12797 states have (on average 3.429553801672267) internal successors, (43888), 12797 states have internal predecessors, (43888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:41,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12798 states to 12798 states and 43888 transitions. [2022-03-15 13:52:41,172 INFO L78 Accepts]: Start accepts. Automaton has 12798 states and 43888 transitions. Word has length 92 [2022-03-15 13:52:41,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:41,172 INFO L470 AbstractCegarLoop]: Abstraction has 12798 states and 43888 transitions. [2022-03-15 13:52:41,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:41,172 INFO L276 IsEmpty]: Start isEmpty. Operand 12798 states and 43888 transitions. [2022-03-15 13:52:41,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:41,197 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:41,197 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] [2022-03-15 13:52:41,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-15 13:52:41,197 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:41,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:41,197 INFO L85 PathProgramCache]: Analyzing trace with hash -31336564, now seen corresponding path program 16 times [2022-03-15 13:52:41,198 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:41,198 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863174430] [2022-03-15 13:52:41,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:41,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:41,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:41,270 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:41,270 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863174430] [2022-03-15 13:52:41,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863174430] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:41,270 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:41,270 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:41,270 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823762060] [2022-03-15 13:52:41,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:41,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:41,270 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:41,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:41,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:41,271 INFO L87 Difference]: Start difference. First operand 12798 states and 43888 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:41,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:41,529 INFO L93 Difference]: Finished difference Result 16361 states and 55941 transitions. [2022-03-15 13:52:41,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:52:41,530 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:41,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:41,568 INFO L225 Difference]: With dead ends: 16361 [2022-03-15 13:52:41,568 INFO L226 Difference]: Without dead ends: 14780 [2022-03-15 13:52:41,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:52:41,569 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 203 mSDsluCounter, 1392 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 1529 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:41,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 1529 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:41,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14780 states. [2022-03-15 13:52:41,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14780 to 12657. [2022-03-15 13:52:41,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12657 states, 12656 states have (on average 3.4348925410872315) internal successors, (43472), 12656 states have internal predecessors, (43472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:41,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12657 states to 12657 states and 43472 transitions. [2022-03-15 13:52:41,825 INFO L78 Accepts]: Start accepts. Automaton has 12657 states and 43472 transitions. Word has length 92 [2022-03-15 13:52:41,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:41,825 INFO L470 AbstractCegarLoop]: Abstraction has 12657 states and 43472 transitions. [2022-03-15 13:52:41,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:41,826 INFO L276 IsEmpty]: Start isEmpty. Operand 12657 states and 43472 transitions. [2022-03-15 13:52:41,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:41,850 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:41,851 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] [2022-03-15 13:52:41,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-15 13:52:41,851 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:41,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:41,851 INFO L85 PathProgramCache]: Analyzing trace with hash -2066006490, now seen corresponding path program 17 times [2022-03-15 13:52:41,851 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:41,851 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049106698] [2022-03-15 13:52:41,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:41,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:41,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:41,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:41,918 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:41,918 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049106698] [2022-03-15 13:52:41,918 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049106698] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:41,918 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:41,918 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:41,918 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151409380] [2022-03-15 13:52:41,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:41,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:41,918 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:41,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:41,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:41,919 INFO L87 Difference]: Start difference. First operand 12657 states and 43472 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:42,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:42,210 INFO L93 Difference]: Finished difference Result 17637 states and 59880 transitions. [2022-03-15 13:52:42,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-15 13:52:42,210 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:42,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:42,250 INFO L225 Difference]: With dead ends: 17637 [2022-03-15 13:52:42,250 INFO L226 Difference]: Without dead ends: 15340 [2022-03-15 13:52:42,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=572, Unknown=0, NotChecked=0, Total=756 [2022-03-15 13:52:42,251 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 429 mSDsluCounter, 1473 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:42,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 1634 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:42,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15340 states. [2022-03-15 13:52:42,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15340 to 12371. [2022-03-15 13:52:42,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12371 states, 12370 states have (on average 3.4071948261924008) internal successors, (42147), 12370 states have internal predecessors, (42147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:42,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12371 states to 12371 states and 42147 transitions. [2022-03-15 13:52:42,534 INFO L78 Accepts]: Start accepts. Automaton has 12371 states and 42147 transitions. Word has length 92 [2022-03-15 13:52:42,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:42,534 INFO L470 AbstractCegarLoop]: Abstraction has 12371 states and 42147 transitions. [2022-03-15 13:52:42,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:42,534 INFO L276 IsEmpty]: Start isEmpty. Operand 12371 states and 42147 transitions. [2022-03-15 13:52:42,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:42,560 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:42,560 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] [2022-03-15 13:52:42,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-15 13:52:42,560 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:42,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:42,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1526134988, now seen corresponding path program 18 times [2022-03-15 13:52:42,561 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:42,561 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611372694] [2022-03-15 13:52:42,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:42,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:42,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:42,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:42,633 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:42,633 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611372694] [2022-03-15 13:52:42,633 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611372694] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:42,633 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:42,634 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:42,634 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558315449] [2022-03-15 13:52:42,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:42,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:42,634 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:42,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:42,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:42,634 INFO L87 Difference]: Start difference. First operand 12371 states and 42147 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:42,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:42,932 INFO L93 Difference]: Finished difference Result 16228 states and 55101 transitions. [2022-03-15 13:52:42,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-15 13:52:42,933 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:42,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:42,975 INFO L225 Difference]: With dead ends: 16228 [2022-03-15 13:52:42,975 INFO L226 Difference]: Without dead ends: 14556 [2022-03-15 13:52:42,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2022-03-15 13:52:42,976 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 320 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 1668 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:42,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 1668 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:43,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14556 states. [2022-03-15 13:52:43,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14556 to 12418. [2022-03-15 13:52:43,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12418 states, 12417 states have (on average 3.404203913988886) internal successors, (42270), 12417 states have internal predecessors, (42270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:43,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12418 states to 12418 states and 42270 transitions. [2022-03-15 13:52:43,256 INFO L78 Accepts]: Start accepts. Automaton has 12418 states and 42270 transitions. Word has length 92 [2022-03-15 13:52:43,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:43,256 INFO L470 AbstractCegarLoop]: Abstraction has 12418 states and 42270 transitions. [2022-03-15 13:52:43,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:43,256 INFO L276 IsEmpty]: Start isEmpty. Operand 12418 states and 42270 transitions. [2022-03-15 13:52:43,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:43,283 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:43,283 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] [2022-03-15 13:52:43,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-15 13:52:43,283 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:43,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:43,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1595477952, now seen corresponding path program 19 times [2022-03-15 13:52:43,284 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:43,284 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121227971] [2022-03-15 13:52:43,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:43,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:43,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:43,356 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:43,357 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121227971] [2022-03-15 13:52:43,357 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121227971] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:43,357 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:43,357 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:43,357 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026040784] [2022-03-15 13:52:43,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:43,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:43,357 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:43,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:43,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:43,358 INFO L87 Difference]: Start difference. First operand 12418 states and 42270 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:43,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:43,619 INFO L93 Difference]: Finished difference Result 15578 states and 52845 transitions. [2022-03-15 13:52:43,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:52:43,619 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:43,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:43,654 INFO L225 Difference]: With dead ends: 15578 [2022-03-15 13:52:43,654 INFO L226 Difference]: Without dead ends: 14141 [2022-03-15 13:52:43,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:52:43,655 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 232 mSDsluCounter, 1497 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 1636 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:43,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 1636 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:43,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14141 states. [2022-03-15 13:52:43,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14141 to 12465. [2022-03-15 13:52:43,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12465 states, 12464 states have (on average 3.4012355584082155) internal successors, (42393), 12464 states have internal predecessors, (42393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:43,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12465 states to 12465 states and 42393 transitions. [2022-03-15 13:52:43,923 INFO L78 Accepts]: Start accepts. Automaton has 12465 states and 42393 transitions. Word has length 92 [2022-03-15 13:52:43,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:43,924 INFO L470 AbstractCegarLoop]: Abstraction has 12465 states and 42393 transitions. [2022-03-15 13:52:43,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:43,924 INFO L276 IsEmpty]: Start isEmpty. Operand 12465 states and 42393 transitions. [2022-03-15 13:52:43,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:43,949 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:43,949 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:43,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-15 13:52:43,949 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:43,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:43,950 INFO L85 PathProgramCache]: Analyzing trace with hash -219273050, now seen corresponding path program 20 times [2022-03-15 13:52:43,950 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:43,950 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649732465] [2022-03-15 13:52:43,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:43,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:43,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:44,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:44,019 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:44,019 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649732465] [2022-03-15 13:52:44,019 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649732465] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:44,019 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:44,019 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:44,019 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8588573] [2022-03-15 13:52:44,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:44,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:44,019 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:44,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:44,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:44,020 INFO L87 Difference]: Start difference. First operand 12465 states and 42393 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:44,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:44,251 INFO L93 Difference]: Finished difference Result 15125 states and 51215 transitions. [2022-03-15 13:52:44,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 13:52:44,251 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:44,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:44,282 INFO L225 Difference]: With dead ends: 15125 [2022-03-15 13:52:44,283 INFO L226 Difference]: Without dead ends: 13057 [2022-03-15 13:52:44,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:52:44,283 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 203 mSDsluCounter, 1321 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:44,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 1468 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:44,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13057 states. [2022-03-15 13:52:44,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13057 to 11654. [2022-03-15 13:52:44,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11654 states, 11653 states have (on average 3.396979318630396) internal successors, (39585), 11653 states have internal predecessors, (39585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:44,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11654 states to 11654 states and 39585 transitions. [2022-03-15 13:52:44,503 INFO L78 Accepts]: Start accepts. Automaton has 11654 states and 39585 transitions. Word has length 92 [2022-03-15 13:52:44,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:44,504 INFO L470 AbstractCegarLoop]: Abstraction has 11654 states and 39585 transitions. [2022-03-15 13:52:44,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:44,504 INFO L276 IsEmpty]: Start isEmpty. Operand 11654 states and 39585 transitions. [2022-03-15 13:52:44,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:44,525 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:44,525 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] [2022-03-15 13:52:44,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-15 13:52:44,525 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:44,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:44,526 INFO L85 PathProgramCache]: Analyzing trace with hash -172316422, now seen corresponding path program 1 times [2022-03-15 13:52:44,526 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:44,526 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776529159] [2022-03-15 13:52:44,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:44,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:44,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:44,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:44,593 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:44,593 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776529159] [2022-03-15 13:52:44,593 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776529159] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:44,593 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:44,593 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:44,593 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730667562] [2022-03-15 13:52:44,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:44,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:44,594 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:44,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:44,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:44,594 INFO L87 Difference]: Start difference. First operand 11654 states and 39585 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:44,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:44,892 INFO L93 Difference]: Finished difference Result 17357 states and 58043 transitions. [2022-03-15 13:52:44,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-15 13:52:44,893 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:44,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:44,928 INFO L225 Difference]: With dead ends: 17357 [2022-03-15 13:52:44,928 INFO L226 Difference]: Without dead ends: 14735 [2022-03-15 13:52:44,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=184, Invalid=572, Unknown=0, NotChecked=0, Total=756 [2022-03-15 13:52:44,929 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 415 mSDsluCounter, 1910 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 2068 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:44,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [415 Valid, 2068 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:44,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14735 states. [2022-03-15 13:52:45,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14735 to 11611. [2022-03-15 13:52:45,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11611 states, 11610 states have (on average 3.3695951765719205) internal successors, (39121), 11610 states have internal predecessors, (39121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:45,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11611 states to 11611 states and 39121 transitions. [2022-03-15 13:52:45,157 INFO L78 Accepts]: Start accepts. Automaton has 11611 states and 39121 transitions. Word has length 92 [2022-03-15 13:52:45,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:45,157 INFO L470 AbstractCegarLoop]: Abstraction has 11611 states and 39121 transitions. [2022-03-15 13:52:45,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:45,157 INFO L276 IsEmpty]: Start isEmpty. Operand 11611 states and 39121 transitions. [2022-03-15 13:52:45,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:45,178 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:45,178 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] [2022-03-15 13:52:45,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-15 13:52:45,178 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:45,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:45,179 INFO L85 PathProgramCache]: Analyzing trace with hash 259526542, now seen corresponding path program 2 times [2022-03-15 13:52:45,179 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:45,179 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933294400] [2022-03-15 13:52:45,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:45,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:45,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:45,246 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:45,246 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933294400] [2022-03-15 13:52:45,246 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933294400] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:45,246 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:45,246 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:45,246 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243247731] [2022-03-15 13:52:45,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:45,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:45,246 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:45,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:45,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:45,247 INFO L87 Difference]: Start difference. First operand 11611 states and 39121 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:45,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:45,560 INFO L93 Difference]: Finished difference Result 15876 states and 53423 transitions. [2022-03-15 13:52:45,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-15 13:52:45,561 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:45,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:45,704 INFO L225 Difference]: With dead ends: 15876 [2022-03-15 13:52:45,704 INFO L226 Difference]: Without dead ends: 14198 [2022-03-15 13:52:45,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2022-03-15 13:52:45,704 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 317 mSDsluCounter, 1624 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:45,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [317 Valid, 1779 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:45,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14198 states. [2022-03-15 13:52:45,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14198 to 11658. [2022-03-15 13:52:45,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11658 states, 11657 states have (on average 3.3665608647164795) internal successors, (39244), 11657 states have internal predecessors, (39244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:45,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11658 states to 11658 states and 39244 transitions. [2022-03-15 13:52:45,926 INFO L78 Accepts]: Start accepts. Automaton has 11658 states and 39244 transitions. Word has length 92 [2022-03-15 13:52:45,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:45,926 INFO L470 AbstractCegarLoop]: Abstraction has 11658 states and 39244 transitions. [2022-03-15 13:52:45,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:45,926 INFO L276 IsEmpty]: Start isEmpty. Operand 11658 states and 39244 transitions. [2022-03-15 13:52:45,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:45,948 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:45,948 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] [2022-03-15 13:52:45,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-15 13:52:45,948 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:45,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:45,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1899585830, now seen corresponding path program 3 times [2022-03-15 13:52:45,949 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:45,949 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766653764] [2022-03-15 13:52:45,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:45,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:45,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:46,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:46,062 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:46,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766653764] [2022-03-15 13:52:46,062 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766653764] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:46,062 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:46,062 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:46,062 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856952637] [2022-03-15 13:52:46,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:46,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:46,062 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:46,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:46,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:46,063 INFO L87 Difference]: Start difference. First operand 11658 states and 39244 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:46,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:46,318 INFO L93 Difference]: Finished difference Result 15109 states and 50767 transitions. [2022-03-15 13:52:46,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 13:52:46,319 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:46,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:46,352 INFO L225 Difference]: With dead ends: 15109 [2022-03-15 13:52:46,353 INFO L226 Difference]: Without dead ends: 13672 [2022-03-15 13:52:46,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:52:46,353 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 209 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:46,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 1679 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:46,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13672 states. [2022-03-15 13:52:46,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13672 to 11705. [2022-03-15 13:52:46,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11705 states, 11704 states have (on average 3.363550922761449) internal successors, (39367), 11704 states have internal predecessors, (39367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:46,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11705 states to 11705 states and 39367 transitions. [2022-03-15 13:52:46,568 INFO L78 Accepts]: Start accepts. Automaton has 11705 states and 39367 transitions. Word has length 92 [2022-03-15 13:52:46,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:46,568 INFO L470 AbstractCegarLoop]: Abstraction has 11705 states and 39367 transitions. [2022-03-15 13:52:46,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:46,568 INFO L276 IsEmpty]: Start isEmpty. Operand 11705 states and 39367 transitions. [2022-03-15 13:52:46,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:46,589 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:46,590 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] [2022-03-15 13:52:46,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-15 13:52:46,590 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:46,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:46,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1019176564, now seen corresponding path program 4 times [2022-03-15 13:52:46,590 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:46,590 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081006005] [2022-03-15 13:52:46,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:46,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:46,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:46,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:46,655 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:46,655 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081006005] [2022-03-15 13:52:46,655 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081006005] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:46,655 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:46,656 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:46,656 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147060240] [2022-03-15 13:52:46,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:46,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:46,656 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:46,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:46,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:46,656 INFO L87 Difference]: Start difference. First operand 11705 states and 39367 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:46,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:46,912 INFO L93 Difference]: Finished difference Result 14830 states and 49753 transitions. [2022-03-15 13:52:46,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:52:46,913 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:46,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:46,944 INFO L225 Difference]: With dead ends: 14830 [2022-03-15 13:52:46,944 INFO L226 Difference]: Without dead ends: 13109 [2022-03-15 13:52:46,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:52:46,945 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 242 mSDsluCounter, 1744 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 1887 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:46,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 1887 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:46,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13109 states. [2022-03-15 13:52:47,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13109 to 11414. [2022-03-15 13:52:47,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11414 states, 11413 states have (on average 3.366687111188995) internal successors, (38424), 11413 states have internal predecessors, (38424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:47,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11414 states to 11414 states and 38424 transitions. [2022-03-15 13:52:47,159 INFO L78 Accepts]: Start accepts. Automaton has 11414 states and 38424 transitions. Word has length 92 [2022-03-15 13:52:47,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:47,159 INFO L470 AbstractCegarLoop]: Abstraction has 11414 states and 38424 transitions. [2022-03-15 13:52:47,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:47,159 INFO L276 IsEmpty]: Start isEmpty. Operand 11414 states and 38424 transitions. [2022-03-15 13:52:47,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:47,178 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:47,178 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] [2022-03-15 13:52:47,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-15 13:52:47,178 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:47,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:47,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1047699032, now seen corresponding path program 5 times [2022-03-15 13:52:47,178 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:47,178 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506799642] [2022-03-15 13:52:47,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:47,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:47,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:47,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:47,297 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:47,297 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506799642] [2022-03-15 13:52:47,297 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506799642] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:47,297 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:47,297 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:47,297 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153317828] [2022-03-15 13:52:47,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:47,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:47,298 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:47,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:47,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:47,298 INFO L87 Difference]: Start difference. First operand 11414 states and 38424 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:47,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:47,536 INFO L93 Difference]: Finished difference Result 15852 states and 53376 transitions. [2022-03-15 13:52:47,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-15 13:52:47,536 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:47,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:47,573 INFO L225 Difference]: With dead ends: 15852 [2022-03-15 13:52:47,573 INFO L226 Difference]: Without dead ends: 14180 [2022-03-15 13:52:47,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-15 13:52:47,574 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 271 mSDsluCounter, 1529 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:47,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 1678 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:47,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14180 states. [2022-03-15 13:52:47,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14180 to 11508. [2022-03-15 13:52:47,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11508 states, 11507 states have (on average 3.364647605805162) internal successors, (38717), 11507 states have internal predecessors, (38717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:47,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11508 states to 11508 states and 38717 transitions. [2022-03-15 13:52:47,800 INFO L78 Accepts]: Start accepts. Automaton has 11508 states and 38717 transitions. Word has length 92 [2022-03-15 13:52:47,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:47,800 INFO L470 AbstractCegarLoop]: Abstraction has 11508 states and 38717 transitions. [2022-03-15 13:52:47,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:47,800 INFO L276 IsEmpty]: Start isEmpty. Operand 11508 states and 38717 transitions. [2022-03-15 13:52:47,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:47,819 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:47,819 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] [2022-03-15 13:52:47,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-15 13:52:47,819 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:47,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:47,819 INFO L85 PathProgramCache]: Analyzing trace with hash -2073913908, now seen corresponding path program 6 times [2022-03-15 13:52:47,819 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:47,819 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560690697] [2022-03-15 13:52:47,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:47,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:47,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:47,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:47,890 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:47,890 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560690697] [2022-03-15 13:52:47,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560690697] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:47,891 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:47,891 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:47,891 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585188765] [2022-03-15 13:52:47,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:47,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:47,891 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:47,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:47,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:47,891 INFO L87 Difference]: Start difference. First operand 11508 states and 38717 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:48,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:48,141 INFO L93 Difference]: Finished difference Result 15523 states and 52280 transitions. [2022-03-15 13:52:48,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:52:48,142 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:48,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:48,179 INFO L225 Difference]: With dead ends: 15523 [2022-03-15 13:52:48,179 INFO L226 Difference]: Without dead ends: 14086 [2022-03-15 13:52:48,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:52:48,180 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 221 mSDsluCounter, 1501 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 1647 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:48,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 1647 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:48,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14086 states. [2022-03-15 13:52:48,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14086 to 11555. [2022-03-15 13:52:48,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11555 states, 11554 states have (on average 3.361606370088281) internal successors, (38840), 11554 states have internal predecessors, (38840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:48,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11555 states to 11555 states and 38840 transitions. [2022-03-15 13:52:48,409 INFO L78 Accepts]: Start accepts. Automaton has 11555 states and 38840 transitions. Word has length 92 [2022-03-15 13:52:48,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:48,409 INFO L470 AbstractCegarLoop]: Abstraction has 11555 states and 38840 transitions. [2022-03-15 13:52:48,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:48,410 INFO L276 IsEmpty]: Start isEmpty. Operand 11555 states and 38840 transitions. [2022-03-15 13:52:48,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:48,431 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:48,431 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] [2022-03-15 13:52:48,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-15 13:52:48,431 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:48,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:48,431 INFO L85 PathProgramCache]: Analyzing trace with hash -697709006, now seen corresponding path program 7 times [2022-03-15 13:52:48,432 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:48,432 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960659419] [2022-03-15 13:52:48,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:48,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:48,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:48,503 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:48,503 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960659419] [2022-03-15 13:52:48,503 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960659419] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:48,503 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:48,503 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:48,503 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160627886] [2022-03-15 13:52:48,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:48,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:48,503 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:48,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:48,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:48,504 INFO L87 Difference]: Start difference. First operand 11555 states and 38840 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:48,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:48,736 INFO L93 Difference]: Finished difference Result 15244 states and 51266 transitions. [2022-03-15 13:52:48,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:52:48,736 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:48,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:48,772 INFO L225 Difference]: With dead ends: 15244 [2022-03-15 13:52:48,772 INFO L226 Difference]: Without dead ends: 13710 [2022-03-15 13:52:48,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:52:48,772 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 208 mSDsluCounter, 1397 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 1547 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:48,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 1547 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:48,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13710 states. [2022-03-15 13:52:48,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13710 to 11461. [2022-03-15 13:52:48,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11461 states, 11460 states have (on average 3.363612565445026) internal successors, (38547), 11460 states have internal predecessors, (38547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:49,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11461 states to 11461 states and 38547 transitions. [2022-03-15 13:52:49,023 INFO L78 Accepts]: Start accepts. Automaton has 11461 states and 38547 transitions. Word has length 92 [2022-03-15 13:52:49,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:49,023 INFO L470 AbstractCegarLoop]: Abstraction has 11461 states and 38547 transitions. [2022-03-15 13:52:49,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:49,023 INFO L276 IsEmpty]: Start isEmpty. Operand 11461 states and 38547 transitions. [2022-03-15 13:52:49,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:49,044 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:49,044 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] [2022-03-15 13:52:49,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-15 13:52:49,044 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:49,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:49,044 INFO L85 PathProgramCache]: Analyzing trace with hash 71073018, now seen corresponding path program 8 times [2022-03-15 13:52:49,044 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:49,044 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214744755] [2022-03-15 13:52:49,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:49,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:49,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:49,124 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:49,124 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214744755] [2022-03-15 13:52:49,124 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214744755] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:49,124 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:49,124 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:49,124 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451765270] [2022-03-15 13:52:49,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:49,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:49,124 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:49,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:49,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:49,124 INFO L87 Difference]: Start difference. First operand 11461 states and 38547 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:49,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:49,391 INFO L93 Difference]: Finished difference Result 15726 states and 52849 transitions. [2022-03-15 13:52:49,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:52:49,392 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:49,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:49,424 INFO L225 Difference]: With dead ends: 15726 [2022-03-15 13:52:49,424 INFO L226 Difference]: Without dead ends: 14048 [2022-03-15 13:52:49,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-03-15 13:52:49,425 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 284 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:49,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 1690 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:49,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14048 states. [2022-03-15 13:52:49,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14048 to 11508. [2022-03-15 13:52:49,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11508 states, 11507 states have (on average 3.3605631354827494) internal successors, (38670), 11507 states have internal predecessors, (38670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:49,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11508 states to 11508 states and 38670 transitions. [2022-03-15 13:52:49,650 INFO L78 Accepts]: Start accepts. Automaton has 11508 states and 38670 transitions. Word has length 92 [2022-03-15 13:52:49,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:49,650 INFO L470 AbstractCegarLoop]: Abstraction has 11508 states and 38670 transitions. [2022-03-15 13:52:49,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:49,651 INFO L276 IsEmpty]: Start isEmpty. Operand 11508 states and 38670 transitions. [2022-03-15 13:52:49,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:49,670 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:49,670 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] [2022-03-15 13:52:49,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-15 13:52:49,671 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:49,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:49,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1711132306, now seen corresponding path program 9 times [2022-03-15 13:52:49,671 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:49,671 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875887300] [2022-03-15 13:52:49,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:49,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:49,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:49,740 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:49,740 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875887300] [2022-03-15 13:52:49,740 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875887300] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:49,740 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:49,740 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:49,740 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569463409] [2022-03-15 13:52:49,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:49,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:49,740 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:49,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:49,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:49,741 INFO L87 Difference]: Start difference. First operand 11508 states and 38670 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:49,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:49,985 INFO L93 Difference]: Finished difference Result 15100 states and 50703 transitions. [2022-03-15 13:52:49,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:52:49,985 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:49,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:50,020 INFO L225 Difference]: With dead ends: 15100 [2022-03-15 13:52:50,020 INFO L226 Difference]: Without dead ends: 13663 [2022-03-15 13:52:50,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:52:50,020 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 211 mSDsluCounter, 1592 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 1731 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:50,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 1731 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:50,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13663 states. [2022-03-15 13:52:50,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13663 to 11555. [2022-03-15 13:52:50,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11555 states, 11554 states have (on average 3.357538514800069) internal successors, (38793), 11554 states have internal predecessors, (38793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:50,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11555 states to 11555 states and 38793 transitions. [2022-03-15 13:52:50,242 INFO L78 Accepts]: Start accepts. Automaton has 11555 states and 38793 transitions. Word has length 92 [2022-03-15 13:52:50,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:50,242 INFO L470 AbstractCegarLoop]: Abstraction has 11555 states and 38793 transitions. [2022-03-15 13:52:50,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:50,242 INFO L276 IsEmpty]: Start isEmpty. Operand 11555 states and 38793 transitions. [2022-03-15 13:52:50,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:50,262 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:50,262 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] [2022-03-15 13:52:50,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-15 13:52:50,262 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:50,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:50,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1207630088, now seen corresponding path program 10 times [2022-03-15 13:52:50,262 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:50,262 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129061192] [2022-03-15 13:52:50,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:50,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:50,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:50,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:50,332 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:50,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129061192] [2022-03-15 13:52:50,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129061192] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:50,333 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:50,333 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:50,333 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402031286] [2022-03-15 13:52:50,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:50,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:50,333 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:50,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:50,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:50,333 INFO L87 Difference]: Start difference. First operand 11555 states and 38793 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:50,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:50,575 INFO L93 Difference]: Finished difference Result 14680 states and 49179 transitions. [2022-03-15 13:52:50,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:52:50,575 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:50,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:50,606 INFO L225 Difference]: With dead ends: 14680 [2022-03-15 13:52:50,606 INFO L226 Difference]: Without dead ends: 12912 [2022-03-15 13:52:50,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:52:50,607 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 219 mSDsluCounter, 1634 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 1765 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:50,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 1765 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:50,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12912 states. [2022-03-15 13:52:50,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12912 to 11217. [2022-03-15 13:52:50,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11217 states, 11216 states have (on average 3.3636768901569187) internal successors, (37727), 11216 states have internal predecessors, (37727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:50,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11217 states to 11217 states and 37727 transitions. [2022-03-15 13:52:50,818 INFO L78 Accepts]: Start accepts. Automaton has 11217 states and 37727 transitions. Word has length 92 [2022-03-15 13:52:50,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:50,818 INFO L470 AbstractCegarLoop]: Abstraction has 11217 states and 37727 transitions. [2022-03-15 13:52:50,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:50,818 INFO L276 IsEmpty]: Start isEmpty. Operand 11217 states and 37727 transitions. [2022-03-15 13:52:50,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:50,839 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:50,839 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] [2022-03-15 13:52:50,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-15 13:52:50,839 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:50,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:50,839 INFO L85 PathProgramCache]: Analyzing trace with hash 2000094280, now seen corresponding path program 11 times [2022-03-15 13:52:50,839 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:50,840 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246462566] [2022-03-15 13:52:50,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:50,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:50,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:50,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:50,904 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:50,904 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246462566] [2022-03-15 13:52:50,904 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246462566] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:50,904 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:50,904 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:50,904 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633888563] [2022-03-15 13:52:50,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:50,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:50,904 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:50,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:50,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:50,905 INFO L87 Difference]: Start difference. First operand 11217 states and 37727 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:51,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:51,180 INFO L93 Difference]: Finished difference Result 15861 states and 52979 transitions. [2022-03-15 13:52:51,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-15 13:52:51,181 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:51,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:51,214 INFO L225 Difference]: With dead ends: 15861 [2022-03-15 13:52:51,214 INFO L226 Difference]: Without dead ends: 13564 [2022-03-15 13:52:51,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=572, Unknown=0, NotChecked=0, Total=756 [2022-03-15 13:52:51,215 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 429 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 1513 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:51,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 1513 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:51,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13564 states. [2022-03-15 13:52:51,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13564 to 11126. [2022-03-15 13:52:51,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11126 states, 11125 states have (on average 3.34723595505618) internal successors, (37238), 11125 states have internal predecessors, (37238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:51,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11126 states to 11126 states and 37238 transitions. [2022-03-15 13:52:51,432 INFO L78 Accepts]: Start accepts. Automaton has 11126 states and 37238 transitions. Word has length 92 [2022-03-15 13:52:51,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:51,432 INFO L470 AbstractCegarLoop]: Abstraction has 11126 states and 37238 transitions. [2022-03-15 13:52:51,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:51,433 INFO L276 IsEmpty]: Start isEmpty. Operand 11126 states and 37238 transitions. [2022-03-15 13:52:51,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:51,450 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:51,450 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] [2022-03-15 13:52:51,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-15 13:52:51,450 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:51,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:51,451 INFO L85 PathProgramCache]: Analyzing trace with hash 911458990, now seen corresponding path program 12 times [2022-03-15 13:52:51,451 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:51,451 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494119699] [2022-03-15 13:52:51,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:51,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:51,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:51,515 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:51,515 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494119699] [2022-03-15 13:52:51,515 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494119699] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:51,515 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:51,515 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:51,515 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14948342] [2022-03-15 13:52:51,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:51,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:51,516 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:51,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:51,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:51,516 INFO L87 Difference]: Start difference. First operand 11126 states and 37238 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:51,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:51,801 INFO L93 Difference]: Finished difference Result 15028 states and 50366 transitions. [2022-03-15 13:52:51,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-15 13:52:51,801 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:51,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:51,834 INFO L225 Difference]: With dead ends: 15028 [2022-03-15 13:52:51,834 INFO L226 Difference]: Without dead ends: 13356 [2022-03-15 13:52:51,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2022-03-15 13:52:51,834 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 320 mSDsluCounter, 1539 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:51,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 1685 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:51,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13356 states. [2022-03-15 13:52:51,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13356 to 11173. [2022-03-15 13:52:52,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11173 states, 11172 states have (on average 3.3441639813820263) internal successors, (37361), 11172 states have internal predecessors, (37361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:52,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11173 states to 11173 states and 37361 transitions. [2022-03-15 13:52:52,041 INFO L78 Accepts]: Start accepts. Automaton has 11173 states and 37361 transitions. Word has length 92 [2022-03-15 13:52:52,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:52,041 INFO L470 AbstractCegarLoop]: Abstraction has 11173 states and 37361 transitions. [2022-03-15 13:52:52,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:52,042 INFO L276 IsEmpty]: Start isEmpty. Operand 11173 states and 37361 transitions. [2022-03-15 13:52:52,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:52,060 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:52,061 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:52,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-15 13:52:52,061 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:52,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:52,061 INFO L85 PathProgramCache]: Analyzing trace with hash 2084813346, now seen corresponding path program 13 times [2022-03-15 13:52:52,061 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:52,061 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643333187] [2022-03-15 13:52:52,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:52,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:52,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:52,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:52,128 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:52,128 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643333187] [2022-03-15 13:52:52,128 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643333187] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:52,128 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:52,128 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:52,128 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724482449] [2022-03-15 13:52:52,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:52,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:52,128 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:52,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:52,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:52,128 INFO L87 Difference]: Start difference. First operand 11173 states and 37361 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:52,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:52,363 INFO L93 Difference]: Finished difference Result 14370 states and 48080 transitions. [2022-03-15 13:52:52,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:52:52,364 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:52,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:52,397 INFO L225 Difference]: With dead ends: 14370 [2022-03-15 13:52:52,397 INFO L226 Difference]: Without dead ends: 12933 [2022-03-15 13:52:52,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:52:52,398 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 233 mSDsluCounter, 1351 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 1501 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:52,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 1501 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:52,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12933 states. [2022-03-15 13:52:52,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12933 to 11220. [2022-03-15 13:52:52,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11220 states, 11219 states have (on average 3.34111774667974) internal successors, (37484), 11219 states have internal predecessors, (37484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:52,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11220 states to 11220 states and 37484 transitions. [2022-03-15 13:52:52,608 INFO L78 Accepts]: Start accepts. Automaton has 11220 states and 37484 transitions. Word has length 92 [2022-03-15 13:52:52,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:52,608 INFO L470 AbstractCegarLoop]: Abstraction has 11220 states and 37484 transitions. [2022-03-15 13:52:52,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:52,608 INFO L276 IsEmpty]: Start isEmpty. Operand 11220 states and 37484 transitions. [2022-03-15 13:52:52,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:52,626 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:52,626 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] [2022-03-15 13:52:52,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-03-15 13:52:52,626 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:52,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:52,627 INFO L85 PathProgramCache]: Analyzing trace with hash -833949048, now seen corresponding path program 14 times [2022-03-15 13:52:52,627 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:52,627 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699811738] [2022-03-15 13:52:52,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:52,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:52,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:52,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:52,696 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:52,696 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699811738] [2022-03-15 13:52:52,697 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699811738] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:52,697 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:52,697 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:52,697 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294022854] [2022-03-15 13:52:52,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:52,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:52,697 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:52,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:52,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:52,697 INFO L87 Difference]: Start difference. First operand 11220 states and 37484 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:52,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:52,906 INFO L93 Difference]: Finished difference Result 13997 states and 46726 transitions. [2022-03-15 13:52:52,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 13:52:52,906 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:52,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:52,935 INFO L225 Difference]: With dead ends: 13997 [2022-03-15 13:52:52,935 INFO L226 Difference]: Without dead ends: 12338 [2022-03-15 13:52:52,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:52:52,936 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 204 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 1349 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:52,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 1349 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:52,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12338 states. [2022-03-15 13:52:53,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12338 to 11001. [2022-03-15 13:52:53,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11001 states, 11000 states have (on average 3.3436363636363637) internal successors, (36780), 11000 states have internal predecessors, (36780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:53,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11001 states to 11001 states and 36780 transitions. [2022-03-15 13:52:53,139 INFO L78 Accepts]: Start accepts. Automaton has 11001 states and 36780 transitions. Word has length 92 [2022-03-15 13:52:53,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:53,139 INFO L470 AbstractCegarLoop]: Abstraction has 11001 states and 36780 transitions. [2022-03-15 13:52:53,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:53,140 INFO L276 IsEmpty]: Start isEmpty. Operand 11001 states and 36780 transitions. [2022-03-15 13:52:53,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:53,157 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:53,157 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:52:53,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-03-15 13:52:53,158 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:53,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:53,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1834135916, now seen corresponding path program 15 times [2022-03-15 13:52:53,158 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:53,158 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275699543] [2022-03-15 13:52:53,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:53,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:53,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:53,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:53,226 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:53,226 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275699543] [2022-03-15 13:52:53,226 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275699543] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:53,226 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:53,227 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:53,227 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004984815] [2022-03-15 13:52:53,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:53,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:53,227 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:53,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:53,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:53,227 INFO L87 Difference]: Start difference. First operand 11001 states and 36780 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:53,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:53,508 INFO L93 Difference]: Finished difference Result 14711 states and 49220 transitions. [2022-03-15 13:52:53,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 13:52:53,508 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:53,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:53,546 INFO L225 Difference]: With dead ends: 14711 [2022-03-15 13:52:53,546 INFO L226 Difference]: Without dead ends: 13039 [2022-03-15 13:52:53,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-03-15 13:52:53,547 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 297 mSDsluCounter, 1646 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:53,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [297 Valid, 1780 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:53,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13039 states. [2022-03-15 13:52:53,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13039 to 11000. [2022-03-15 13:52:53,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11000 states, 10999 states have (on average 3.339485407764342) internal successors, (36731), 10999 states have internal predecessors, (36731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:53,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11000 states to 11000 states and 36731 transitions. [2022-03-15 13:52:53,789 INFO L78 Accepts]: Start accepts. Automaton has 11000 states and 36731 transitions. Word has length 92 [2022-03-15 13:52:53,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:53,789 INFO L470 AbstractCegarLoop]: Abstraction has 11000 states and 36731 transitions. [2022-03-15 13:52:53,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:53,789 INFO L276 IsEmpty]: Start isEmpty. Operand 11000 states and 36731 transitions. [2022-03-15 13:52:53,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:53,809 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:53,809 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] [2022-03-15 13:52:53,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-15 13:52:53,810 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:53,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:53,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1287477024, now seen corresponding path program 16 times [2022-03-15 13:52:53,810 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:53,810 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141332350] [2022-03-15 13:52:53,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:53,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:53,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:53,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:53,881 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:53,881 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141332350] [2022-03-15 13:52:53,881 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141332350] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:53,881 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:53,881 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:53,881 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341708654] [2022-03-15 13:52:53,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:53,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:53,882 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:53,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:53,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:53,882 INFO L87 Difference]: Start difference. First operand 11000 states and 36731 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:54,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:54,137 INFO L93 Difference]: Finished difference Result 14454 states and 48370 transitions. [2022-03-15 13:52:54,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:52:54,138 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:54,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:54,167 INFO L225 Difference]: With dead ends: 14454 [2022-03-15 13:52:54,167 INFO L226 Difference]: Without dead ends: 13017 [2022-03-15 13:52:54,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:52:54,168 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 236 mSDsluCounter, 1602 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 1733 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:54,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 1733 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:54,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13017 states. [2022-03-15 13:52:54,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13017 to 11047. [2022-03-15 13:52:54,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11047 states, 11046 states have (on average 3.336411370631903) internal successors, (36854), 11046 states have internal predecessors, (36854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:54,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11047 states to 11047 states and 36854 transitions. [2022-03-15 13:52:54,361 INFO L78 Accepts]: Start accepts. Automaton has 11047 states and 36854 transitions. Word has length 92 [2022-03-15 13:52:54,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:54,361 INFO L470 AbstractCegarLoop]: Abstraction has 11047 states and 36854 transitions. [2022-03-15 13:52:54,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:54,361 INFO L276 IsEmpty]: Start isEmpty. Operand 11047 states and 36854 transitions. [2022-03-15 13:52:54,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:54,379 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:54,379 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] [2022-03-15 13:52:54,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-03-15 13:52:54,379 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:54,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:54,380 INFO L85 PathProgramCache]: Analyzing trace with hash 88727878, now seen corresponding path program 17 times [2022-03-15 13:52:54,380 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:54,380 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410630121] [2022-03-15 13:52:54,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:54,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:54,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:54,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:54,447 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:54,447 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410630121] [2022-03-15 13:52:54,447 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410630121] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:54,447 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:54,447 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:54,447 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441687709] [2022-03-15 13:52:54,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:54,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:54,448 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:54,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:54,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:54,448 INFO L87 Difference]: Start difference. First operand 11047 states and 36854 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:54,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:54,691 INFO L93 Difference]: Finished difference Result 14175 states and 47356 transitions. [2022-03-15 13:52:54,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:52:54,692 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:54,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:54,721 INFO L225 Difference]: With dead ends: 14175 [2022-03-15 13:52:54,721 INFO L226 Difference]: Without dead ends: 12641 [2022-03-15 13:52:54,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-03-15 13:52:54,722 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 191 mSDsluCounter, 1506 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:54,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 1638 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:54,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12641 states. [2022-03-15 13:52:54,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12641 to 10953. [2022-03-15 13:52:54,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10953 states, 10952 states have (on average 3.3382943754565377) internal successors, (36561), 10952 states have internal predecessors, (36561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:54,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10953 states to 10953 states and 36561 transitions. [2022-03-15 13:52:54,920 INFO L78 Accepts]: Start accepts. Automaton has 10953 states and 36561 transitions. Word has length 92 [2022-03-15 13:52:54,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:54,920 INFO L470 AbstractCegarLoop]: Abstraction has 10953 states and 36561 transitions. [2022-03-15 13:52:54,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:54,921 INFO L276 IsEmpty]: Start isEmpty. Operand 10953 states and 36561 transitions. [2022-03-15 13:52:55,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:55,043 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:55,044 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] [2022-03-15 13:52:55,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-03-15 13:52:55,044 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:55,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:55,044 INFO L85 PathProgramCache]: Analyzing trace with hash 857509902, now seen corresponding path program 18 times [2022-03-15 13:52:55,044 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:55,044 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579507514] [2022-03-15 13:52:55,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:55,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:55,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:55,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:55,109 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:55,109 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579507514] [2022-03-15 13:52:55,109 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579507514] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:55,109 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:55,109 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:55,109 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133424956] [2022-03-15 13:52:55,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:55,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:55,110 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:55,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:55,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:55,110 INFO L87 Difference]: Start difference. First operand 10953 states and 36561 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:55,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:55,378 INFO L93 Difference]: Finished difference Result 14561 states and 48611 transitions. [2022-03-15 13:52:55,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-15 13:52:55,378 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:55,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:55,409 INFO L225 Difference]: With dead ends: 14561 [2022-03-15 13:52:55,409 INFO L226 Difference]: Without dead ends: 12883 [2022-03-15 13:52:55,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-15 13:52:55,409 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 256 mSDsluCounter, 1614 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:55,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [256 Valid, 1744 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:55,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12883 states. [2022-03-15 13:52:55,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12883 to 10952. [2022-03-15 13:52:55,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10952 states, 10951 states have (on average 3.334124737466898) internal successors, (36512), 10951 states have internal predecessors, (36512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:55,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10952 states to 10952 states and 36512 transitions. [2022-03-15 13:52:55,614 INFO L78 Accepts]: Start accepts. Automaton has 10952 states and 36512 transitions. Word has length 92 [2022-03-15 13:52:55,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:55,614 INFO L470 AbstractCegarLoop]: Abstraction has 10952 states and 36512 transitions. [2022-03-15 13:52:55,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:55,614 INFO L276 IsEmpty]: Start isEmpty. Operand 10952 states and 36512 transitions. [2022-03-15 13:52:55,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:55,632 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:55,632 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] [2022-03-15 13:52:55,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-03-15 13:52:55,632 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:55,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:55,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1797398106, now seen corresponding path program 19 times [2022-03-15 13:52:55,633 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:55,633 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186029021] [2022-03-15 13:52:55,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:55,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:55,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:55,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:55,698 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:55,698 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186029021] [2022-03-15 13:52:55,698 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186029021] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:55,698 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:55,698 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:55,698 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323131194] [2022-03-15 13:52:55,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:55,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:55,698 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:55,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:55,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:55,698 INFO L87 Difference]: Start difference. First operand 10952 states and 36512 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:55,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:55,922 INFO L93 Difference]: Finished difference Result 13959 states and 46547 transitions. [2022-03-15 13:52:55,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 13:52:55,922 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:55,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:55,953 INFO L225 Difference]: With dead ends: 13959 [2022-03-15 13:52:55,953 INFO L226 Difference]: Without dead ends: 12522 [2022-03-15 13:52:55,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-03-15 13:52:55,953 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 228 mSDsluCounter, 1328 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:55,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 1468 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:55,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12522 states. [2022-03-15 13:52:56,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12522 to 10951. [2022-03-15 13:52:56,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10951 states, 10950 states have (on average 3.3299543378995433) internal successors, (36463), 10950 states have internal predecessors, (36463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:56,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10951 states to 10951 states and 36463 transitions. [2022-03-15 13:52:56,165 INFO L78 Accepts]: Start accepts. Automaton has 10951 states and 36463 transitions. Word has length 92 [2022-03-15 13:52:56,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:56,165 INFO L470 AbstractCegarLoop]: Abstraction has 10951 states and 36463 transitions. [2022-03-15 13:52:56,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:56,165 INFO L276 IsEmpty]: Start isEmpty. Operand 10951 states and 36463 transitions. [2022-03-15 13:52:56,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:56,183 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:56,183 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] [2022-03-15 13:52:56,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-03-15 13:52:56,183 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:56,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:56,183 INFO L85 PathProgramCache]: Analyzing trace with hash -421193204, now seen corresponding path program 20 times [2022-03-15 13:52:56,183 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:56,183 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300641430] [2022-03-15 13:52:56,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:56,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:56,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:56,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:56,254 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:56,254 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300641430] [2022-03-15 13:52:56,255 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300641430] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:56,255 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:56,255 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:52:56,255 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431316131] [2022-03-15 13:52:56,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:56,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:52:56,255 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:56,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:52:56,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:52:56,255 INFO L87 Difference]: Start difference. First operand 10951 states and 36463 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:56,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:56,499 INFO L93 Difference]: Finished difference Result 13371 states and 44473 transitions. [2022-03-15 13:52:56,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 13:52:56,500 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:56,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:56,524 INFO L225 Difference]: With dead ends: 13371 [2022-03-15 13:52:56,524 INFO L226 Difference]: Without dead ends: 11134 [2022-03-15 13:52:56,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2022-03-15 13:52:56,525 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 202 mSDsluCounter, 1580 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 1703 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:56,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 1703 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:52:56,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11134 states. [2022-03-15 13:52:56,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11134 to 9811. [2022-03-15 13:52:56,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9811 states, 9810 states have (on average 3.3493374108053007) internal successors, (32857), 9810 states have internal predecessors, (32857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:56,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9811 states to 9811 states and 32857 transitions. [2022-03-15 13:52:56,691 INFO L78 Accepts]: Start accepts. Automaton has 9811 states and 32857 transitions. Word has length 92 [2022-03-15 13:52:56,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:56,691 INFO L470 AbstractCegarLoop]: Abstraction has 9811 states and 32857 transitions. [2022-03-15 13:52:56,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:56,692 INFO L276 IsEmpty]: Start isEmpty. Operand 9811 states and 32857 transitions. [2022-03-15 13:52:56,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:56,707 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:56,707 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] [2022-03-15 13:52:56,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-03-15 13:52:56,707 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:56,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:56,708 INFO L85 PathProgramCache]: Analyzing trace with hash 847164500, now seen corresponding path program 1 times [2022-03-15 13:52:56,708 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:56,708 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727581261] [2022-03-15 13:52:56,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:56,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:56,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:56,748 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:56,748 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727581261] [2022-03-15 13:52:56,748 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727581261] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:56,748 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:56,749 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 13:52:56,749 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891160306] [2022-03-15 13:52:56,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:56,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 13:52:56,749 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:56,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 13:52:56,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-15 13:52:56,749 INFO L87 Difference]: Start difference. First operand 9811 states and 32857 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:56,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:56,864 INFO L93 Difference]: Finished difference Result 12494 states and 41514 transitions. [2022-03-15 13:52:56,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 13:52:56,865 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:56,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:56,878 INFO L225 Difference]: With dead ends: 12494 [2022-03-15 13:52:56,878 INFO L226 Difference]: Without dead ends: 6451 [2022-03-15 13:52:56,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-03-15 13:52:56,879 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 100 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:56,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 1044 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:52:56,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6451 states. [2022-03-15 13:52:56,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6451 to 6451. [2022-03-15 13:52:56,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6451 states, 6450 states have (on average 3.293953488372093) internal successors, (21246), 6450 states have internal predecessors, (21246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:56,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6451 states to 6451 states and 21246 transitions. [2022-03-15 13:52:56,976 INFO L78 Accepts]: Start accepts. Automaton has 6451 states and 21246 transitions. Word has length 92 [2022-03-15 13:52:56,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:56,977 INFO L470 AbstractCegarLoop]: Abstraction has 6451 states and 21246 transitions. [2022-03-15 13:52:56,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:56,977 INFO L276 IsEmpty]: Start isEmpty. Operand 6451 states and 21246 transitions. [2022-03-15 13:52:56,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-15 13:52:56,987 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:52:56,987 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] [2022-03-15 13:52:56,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-03-15 13:52:56,987 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 13:52:56,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:52:56,987 INFO L85 PathProgramCache]: Analyzing trace with hash 866310292, now seen corresponding path program 1 times [2022-03-15 13:52:56,987 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:52:56,988 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097225678] [2022-03-15 13:52:56,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:52:56,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:52:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:52:57,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:52:57,025 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:52:57,025 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097225678] [2022-03-15 13:52:57,025 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097225678] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:52:57,025 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:52:57,025 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 13:52:57,025 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543379429] [2022-03-15 13:52:57,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:52:57,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 13:52:57,025 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:52:57,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 13:52:57,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-15 13:52:57,026 INFO L87 Difference]: Start difference. First operand 6451 states and 21246 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:57,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:52:57,108 INFO L93 Difference]: Finished difference Result 6442 states and 21237 transitions. [2022-03-15 13:52:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 13:52:57,108 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-15 13:52:57,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:52:57,108 INFO L225 Difference]: With dead ends: 6442 [2022-03-15 13:52:57,108 INFO L226 Difference]: Without dead ends: 0 [2022-03-15 13:52:57,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-03-15 13:52:57,108 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 100 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:52:57,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 946 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:52:57,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-15 13:52:57,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-15 13:52:57,109 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) [2022-03-15 13:52:57,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-15 13:52:57,109 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 92 [2022-03-15 13:52:57,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:52:57,109 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-15 13:52:57,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:52:57,109 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-15 13:52:57,109 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-15 13:52:57,111 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-03-15 13:52:57,111 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-15 13:52:57,111 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-15 13:52:57,111 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-15 13:52:57,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-03-15 13:52:57,113 INFO L732 BasicCegarLoop]: Path program histogram: [20, 20, 12, 10, 8, 7, 1, 1, 1] [2022-03-15 13:52:57,115 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 13:52:57,115 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 13:52:57,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 01:52:57 BasicIcfg [2022-03-15 13:52:57,116 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 13:52:57,116 INFO L158 Benchmark]: Toolchain (without parser) took 68970.19ms. Allocated memory was 218.1MB in the beginning and 7.8GB in the end (delta: 7.5GB). Free memory was 172.4MB in the beginning and 4.2GB in the end (delta: -4.0GB). Peak memory consumption was 3.5GB. Max. memory is 8.0GB. [2022-03-15 13:52:57,116 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 218.1MB. Free memory is still 188.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 13:52:57,116 INFO L158 Benchmark]: CACSL2BoogieTranslator took 191.58ms. Allocated memory is still 218.1MB. Free memory was 172.2MB in the beginning and 193.4MB in the end (delta: -21.2MB). Peak memory consumption was 10.0MB. Max. memory is 8.0GB. [2022-03-15 13:52:57,117 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.32ms. Allocated memory is still 218.1MB. Free memory was 193.4MB in the beginning and 191.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 13:52:57,117 INFO L158 Benchmark]: Boogie Preprocessor took 15.59ms. Allocated memory is still 218.1MB. Free memory was 191.7MB in the beginning and 190.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 13:52:57,117 INFO L158 Benchmark]: RCFGBuilder took 268.84ms. Allocated memory is still 218.1MB. Free memory was 190.6MB in the beginning and 177.7MB in the end (delta: 12.9MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-03-15 13:52:57,117 INFO L158 Benchmark]: TraceAbstraction took 68468.97ms. Allocated memory was 218.1MB in the beginning and 7.8GB in the end (delta: 7.5GB). Free memory was 177.0MB in the beginning and 4.2GB in the end (delta: -4.0GB). Peak memory consumption was 3.5GB. Max. memory is 8.0GB. [2022-03-15 13:52:57,117 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 218.1MB. Free memory is still 188.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 191.58ms. Allocated memory is still 218.1MB. Free memory was 172.2MB in the beginning and 193.4MB in the end (delta: -21.2MB). Peak memory consumption was 10.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.32ms. Allocated memory is still 218.1MB. Free memory was 193.4MB in the beginning and 191.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.59ms. Allocated memory is still 218.1MB. Free memory was 191.7MB in the beginning and 190.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 268.84ms. Allocated memory is still 218.1MB. Free memory was 190.6MB in the beginning and 177.7MB in the end (delta: 12.9MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 68468.97ms. Allocated memory was 218.1MB in the beginning and 7.8GB in the end (delta: 7.5GB). Free memory was 177.0MB in the beginning and 4.2GB in the end (delta: -4.0GB). Peak memory consumption was 3.5GB. 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: 77]: 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, 156 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 68.4s, OverallIterations: 80, TraceHistogramMax: 1, PathProgramHistogramMax: 20, EmptinessCheckTime: 2.7s, AutomataDifference: 27.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19400 SdHoareTripleChecker+Valid, 7.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19400 mSDsluCounter, 86779 SdHoareTripleChecker+Invalid, 5.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 73998 mSDsCounter, 359 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13218 IncrementalHoareTripleChecker+Invalid, 13577 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 359 mSolverCounterUnsat, 17288 mSDtfsCounter, 13218 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1722 GetRequests, 685 SyntacticMatches, 0 SemanticMatches, 1037 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3642 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16772occurred in iteration=5, InterpolantAutomatonStates: 998, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 29.9s AutomataMinimizationTime, 80 MinimizatonAttempts, 567941 StatesRemovedByMinimization, 78 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 7282 NumberOfCodeBlocks, 7282 NumberOfCodeBlocksAsserted, 80 NumberOfCheckSat, 7202 ConstructedInterpolants, 0 QuantifiedInterpolants, 34692 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 80 InterpolantComputations, 80 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! [2022-03-15 13:52:57,147 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...