/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 08:35:29,964 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 08:35:29,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 08:35:30,023 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 08:35:30,023 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 08:35:30,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 08:35:30,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 08:35:30,040 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 08:35:30,043 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 08:35:30,049 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 08:35:30,051 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 08:35:30,053 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 08:35:30,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 08:35:30,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 08:35:30,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 08:35:30,061 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 08:35:30,062 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 08:35:30,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 08:35:30,081 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 08:35:30,087 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 08:35:30,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 08:35:30,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 08:35:30,095 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 08:35:30,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 08:35:30,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 08:35:30,099 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 08:35:30,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 08:35:30,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 08:35:30,101 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 08:35:30,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 08:35:30,103 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 08:35:30,104 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 08:35:30,105 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 08:35:30,105 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 08:35:30,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 08:35:30,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 08:35:30,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 08:35:30,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 08:35:30,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 08:35:30,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 08:35:30,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 08:35:30,111 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 08:35:30,137 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 08:35:30,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 08:35:30,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 08:35:30,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 08:35:30,139 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 08:35:30,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 08:35:30,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 08:35:30,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 08:35:30,140 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 08:35:30,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 08:35:30,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 08:35:30,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 08:35:30,141 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 08:35:30,141 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 08:35:30,141 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 08:35:30,142 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 08:35:30,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 08:35:30,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:35:30,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 08:35:30,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 08:35:30,143 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 08:35:30,143 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 08:35:30,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 08:35:30,143 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 08:35:30,143 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 08:35:30,144 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 08:35:30,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 08:35:30,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 08:35:30,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 08:35:30,541 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 08:35:30,541 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 08:35:30,542 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2020-12-22 08:35:30,633 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d91dce88/e02e34fea81343d7b5aac1c7fe194d93/FLAGb60593af5 [2020-12-22 08:35:31,403 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 08:35:31,404 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2020-12-22 08:35:31,420 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d91dce88/e02e34fea81343d7b5aac1c7fe194d93/FLAGb60593af5 [2020-12-22 08:35:31,680 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d91dce88/e02e34fea81343d7b5aac1c7fe194d93 [2020-12-22 08:35:31,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 08:35:31,685 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 08:35:31,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 08:35:31,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 08:35:31,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 08:35:31,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:35:31" (1/1) ... [2020-12-22 08:35:31,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38ae8024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:35:31, skipping insertion in model container [2020-12-22 08:35:31,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:35:31" (1/1) ... [2020-12-22 08:35:31,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 08:35:31,764 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 08:35:32,006 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[7141,7154] [2020-12-22 08:35:32,041 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[10048,10061] [2020-12-22 08:35:32,052 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[11139,11152] [2020-12-22 08:35:32,060 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[11745,11758] [2020-12-22 08:35:32,073 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[13164,13177] [2020-12-22 08:35:32,082 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[13770,13783] [2020-12-22 08:35:32,090 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14741,14754] [2020-12-22 08:35:32,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:35:32,177 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 08:35:32,232 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[7141,7154] [2020-12-22 08:35:32,256 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[10048,10061] [2020-12-22 08:35:32,277 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[11139,11152] [2020-12-22 08:35:32,291 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[11745,11758] [2020-12-22 08:35:32,312 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[13164,13177] [2020-12-22 08:35:32,328 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[13770,13783] [2020-12-22 08:35:32,345 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14741,14754] [2020-12-22 08:35:32,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:35:32,517 INFO L208 MainTranslator]: Completed translation [2020-12-22 08:35:32,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:35:32 WrapperNode [2020-12-22 08:35:32,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 08:35:32,519 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 08:35:32,519 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 08:35:32,519 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 08:35:32,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:35:32" (1/1) ... [2020-12-22 08:35:32,546 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:35:32" (1/1) ... [2020-12-22 08:35:32,615 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 08:35:32,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 08:35:32,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 08:35:32,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 08:35:32,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:35:32" (1/1) ... [2020-12-22 08:35:32,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:35:32" (1/1) ... [2020-12-22 08:35:32,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:35:32" (1/1) ... [2020-12-22 08:35:32,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:35:32" (1/1) ... [2020-12-22 08:35:32,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:35:32" (1/1) ... [2020-12-22 08:35:32,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:35:32" (1/1) ... [2020-12-22 08:35:32,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:35:32" (1/1) ... [2020-12-22 08:35:32,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 08:35:32,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 08:35:32,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 08:35:32,705 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 08:35:32,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:35:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:35:32,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 08:35:32,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 08:35:32,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 08:35:32,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 08:35:34,108 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 08:35:34,108 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 08:35:34,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:35:34 BoogieIcfgContainer [2020-12-22 08:35:34,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 08:35:34,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 08:35:34,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 08:35:34,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 08:35:34,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:35:31" (1/3) ... [2020-12-22 08:35:34,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13139544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:35:34, skipping insertion in model container [2020-12-22 08:35:34,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:35:32" (2/3) ... [2020-12-22 08:35:34,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13139544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:35:34, skipping insertion in model container [2020-12-22 08:35:34,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:35:34" (3/3) ... [2020-12-22 08:35:34,121 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2020-12-22 08:35:34,128 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 08:35:34,133 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-12-22 08:35:34,151 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-12-22 08:35:34,182 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 08:35:34,182 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 08:35:34,182 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 08:35:34,182 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 08:35:34,183 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 08:35:34,183 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 08:35:34,183 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 08:35:34,183 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 08:35:34,208 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-12-22 08:35:34,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-22 08:35:34,219 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:35:34,220 INFO L422 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] [2020-12-22 08:35:34,221 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:35:34,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:35:34,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1485336045, now seen corresponding path program 1 times [2020-12-22 08:35:34,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:35:34,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444732845] [2020-12-22 08:35:34,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:35:34,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:35:34,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:35:34,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444732845] [2020-12-22 08:35:34,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:35:34,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:35:34,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390315114] [2020-12-22 08:35:34,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:35:34,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:35:34,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:35:34,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:35:34,741 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-12-22 08:35:35,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:35:35,183 INFO L93 Difference]: Finished difference Result 423 states and 706 transitions. [2020-12-22 08:35:35,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:35:35,186 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2020-12-22 08:35:35,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:35:35,202 INFO L225 Difference]: With dead ends: 423 [2020-12-22 08:35:35,202 INFO L226 Difference]: Without dead ends: 259 [2020-12-22 08:35:35,207 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:35:35,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-12-22 08:35:35,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 235. [2020-12-22 08:35:35,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-12-22 08:35:35,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 306 transitions. [2020-12-22 08:35:35,332 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 306 transitions. Word has length 47 [2020-12-22 08:35:35,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:35:35,334 INFO L481 AbstractCegarLoop]: Abstraction has 235 states and 306 transitions. [2020-12-22 08:35:35,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:35:35,334 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 306 transitions. [2020-12-22 08:35:35,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-22 08:35:35,342 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:35:35,342 INFO L422 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] [2020-12-22 08:35:35,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 08:35:35,343 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:35:35,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:35:35,344 INFO L82 PathProgramCache]: Analyzing trace with hash 200422799, now seen corresponding path program 1 times [2020-12-22 08:35:35,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:35:35,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188733302] [2020-12-22 08:35:35,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:35:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:35:35,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:35:35,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188733302] [2020-12-22 08:35:35,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:35:35,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:35:35,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591946341] [2020-12-22 08:35:35,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:35:35,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:35:35,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:35:35,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:35:35,550 INFO L87 Difference]: Start difference. First operand 235 states and 306 transitions. Second operand 5 states. [2020-12-22 08:35:35,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:35:35,808 INFO L93 Difference]: Finished difference Result 418 states and 557 transitions. [2020-12-22 08:35:35,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:35:35,809 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2020-12-22 08:35:35,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:35:35,811 INFO L225 Difference]: With dead ends: 418 [2020-12-22 08:35:35,811 INFO L226 Difference]: Without dead ends: 225 [2020-12-22 08:35:35,814 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:35:35,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-12-22 08:35:35,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2020-12-22 08:35:35,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-12-22 08:35:35,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 292 transitions. [2020-12-22 08:35:35,832 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 292 transitions. Word has length 48 [2020-12-22 08:35:35,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:35:35,833 INFO L481 AbstractCegarLoop]: Abstraction has 225 states and 292 transitions. [2020-12-22 08:35:35,833 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:35:35,833 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 292 transitions. [2020-12-22 08:35:35,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-22 08:35:35,835 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:35:35,835 INFO L422 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] [2020-12-22 08:35:35,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 08:35:35,836 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:35:35,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:35:35,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1089931239, now seen corresponding path program 1 times [2020-12-22 08:35:35,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:35:35,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980230084] [2020-12-22 08:35:35,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:35:35,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:35:35,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:35:35,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980230084] [2020-12-22 08:35:35,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:35:35,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:35:35,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594027428] [2020-12-22 08:35:35,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:35:35,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:35:35,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:35:35,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:35:35,997 INFO L87 Difference]: Start difference. First operand 225 states and 292 transitions. Second operand 5 states. [2020-12-22 08:35:36,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:35:36,172 INFO L93 Difference]: Finished difference Result 408 states and 541 transitions. [2020-12-22 08:35:36,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:35:36,173 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 49 [2020-12-22 08:35:36,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:35:36,175 INFO L225 Difference]: With dead ends: 408 [2020-12-22 08:35:36,175 INFO L226 Difference]: Without dead ends: 217 [2020-12-22 08:35:36,176 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:35:36,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-12-22 08:35:36,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-12-22 08:35:36,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-12-22 08:35:36,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 281 transitions. [2020-12-22 08:35:36,195 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 281 transitions. Word has length 49 [2020-12-22 08:35:36,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:35:36,195 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 281 transitions. [2020-12-22 08:35:36,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:35:36,196 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 281 transitions. [2020-12-22 08:35:36,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-22 08:35:36,197 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:35:36,198 INFO L422 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] [2020-12-22 08:35:36,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 08:35:36,198 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:35:36,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:35:36,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1243075504, now seen corresponding path program 1 times [2020-12-22 08:35:36,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:35:36,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784632743] [2020-12-22 08:35:36,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:35:36,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:35:36,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:35:36,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784632743] [2020-12-22 08:35:36,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:35:36,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:35:36,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127684174] [2020-12-22 08:35:36,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:35:36,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:35:36,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:35:36,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:35:36,381 INFO L87 Difference]: Start difference. First operand 217 states and 281 transitions. Second operand 9 states. [2020-12-22 08:35:37,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:35:37,115 INFO L93 Difference]: Finished difference Result 532 states and 728 transitions. [2020-12-22 08:35:37,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:35:37,116 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2020-12-22 08:35:37,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:35:37,120 INFO L225 Difference]: With dead ends: 532 [2020-12-22 08:35:37,120 INFO L226 Difference]: Without dead ends: 527 [2020-12-22 08:35:37,121 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:35:37,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2020-12-22 08:35:37,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 217. [2020-12-22 08:35:37,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-12-22 08:35:37,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 280 transitions. [2020-12-22 08:35:37,144 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 280 transitions. Word has length 50 [2020-12-22 08:35:37,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:35:37,145 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 280 transitions. [2020-12-22 08:35:37,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:35:37,145 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 280 transitions. [2020-12-22 08:35:37,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-22 08:35:37,147 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:35:37,147 INFO L422 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] [2020-12-22 08:35:37,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 08:35:37,148 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:35:37,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:35:37,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1139694690, now seen corresponding path program 1 times [2020-12-22 08:35:37,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:35:37,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179729978] [2020-12-22 08:35:37,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:35:37,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:35:37,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:35:37,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179729978] [2020-12-22 08:35:37,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:35:37,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:35:37,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105164704] [2020-12-22 08:35:37,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:35:37,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:35:37,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:35:37,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:35:37,343 INFO L87 Difference]: Start difference. First operand 217 states and 280 transitions. Second operand 9 states. [2020-12-22 08:35:38,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:35:38,348 INFO L93 Difference]: Finished difference Result 624 states and 861 transitions. [2020-12-22 08:35:38,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:35:38,349 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2020-12-22 08:35:38,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:35:38,353 INFO L225 Difference]: With dead ends: 624 [2020-12-22 08:35:38,353 INFO L226 Difference]: Without dead ends: 523 [2020-12-22 08:35:38,355 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:35:38,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2020-12-22 08:35:38,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 217. [2020-12-22 08:35:38,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-12-22 08:35:38,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 279 transitions. [2020-12-22 08:35:38,379 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 279 transitions. Word has length 50 [2020-12-22 08:35:38,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:35:38,380 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 279 transitions. [2020-12-22 08:35:38,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:35:38,380 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 279 transitions. [2020-12-22 08:35:38,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-22 08:35:38,381 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:35:38,381 INFO L422 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] [2020-12-22 08:35:38,381 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 08:35:38,382 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:35:38,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:35:38,382 INFO L82 PathProgramCache]: Analyzing trace with hash 134088220, now seen corresponding path program 1 times [2020-12-22 08:35:38,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:35:38,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795655888] [2020-12-22 08:35:38,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:35:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:35:38,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:35:38,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795655888] [2020-12-22 08:35:38,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:35:38,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 08:35:38,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419483545] [2020-12-22 08:35:38,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 08:35:38,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:35:38,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 08:35:38,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:35:38,565 INFO L87 Difference]: Start difference. First operand 217 states and 279 transitions. Second operand 8 states. [2020-12-22 08:35:39,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:35:39,022 INFO L93 Difference]: Finished difference Result 461 states and 610 transitions. [2020-12-22 08:35:39,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 08:35:39,022 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 50 [2020-12-22 08:35:39,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:35:39,026 INFO L225 Difference]: With dead ends: 461 [2020-12-22 08:35:39,027 INFO L226 Difference]: Without dead ends: 337 [2020-12-22 08:35:39,028 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-12-22 08:35:39,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-12-22 08:35:39,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 217. [2020-12-22 08:35:39,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-12-22 08:35:39,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 278 transitions. [2020-12-22 08:35:39,060 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 278 transitions. Word has length 50 [2020-12-22 08:35:39,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:35:39,061 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 278 transitions. [2020-12-22 08:35:39,061 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 08:35:39,065 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 278 transitions. [2020-12-22 08:35:39,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-22 08:35:39,065 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:35:39,066 INFO L422 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] [2020-12-22 08:35:39,066 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 08:35:39,066 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:35:39,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:35:39,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1263855603, now seen corresponding path program 1 times [2020-12-22 08:35:39,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:35:39,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241035529] [2020-12-22 08:35:39,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:35:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:35:39,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:35:39,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241035529] [2020-12-22 08:35:39,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:35:39,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-12-22 08:35:39,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282615699] [2020-12-22 08:35:39,699 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-22 08:35:39,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:35:39,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-22 08:35:39,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2020-12-22 08:35:39,700 INFO L87 Difference]: Start difference. First operand 217 states and 278 transitions. Second operand 19 states. [2020-12-22 08:35:39,906 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2020-12-22 08:35:40,471 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-12-22 08:35:40,889 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-12-22 08:35:41,138 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-12-22 08:35:42,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:35:42,146 INFO L93 Difference]: Finished difference Result 470 states and 632 transitions. [2020-12-22 08:35:42,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-12-22 08:35:42,147 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 52 [2020-12-22 08:35:42,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:35:42,150 INFO L225 Difference]: With dead ends: 470 [2020-12-22 08:35:42,150 INFO L226 Difference]: Without dead ends: 382 [2020-12-22 08:35:42,152 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=240, Invalid=950, Unknown=0, NotChecked=0, Total=1190 [2020-12-22 08:35:42,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2020-12-22 08:35:42,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 223. [2020-12-22 08:35:42,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-12-22 08:35:42,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 286 transitions. [2020-12-22 08:35:42,178 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 286 transitions. Word has length 52 [2020-12-22 08:35:42,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:35:42,178 INFO L481 AbstractCegarLoop]: Abstraction has 223 states and 286 transitions. [2020-12-22 08:35:42,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-22 08:35:42,179 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 286 transitions. [2020-12-22 08:35:42,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-22 08:35:42,180 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:35:42,180 INFO L422 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] [2020-12-22 08:35:42,180 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 08:35:42,180 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:35:42,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:35:42,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1250594545, now seen corresponding path program 1 times [2020-12-22 08:35:42,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:35:42,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159902711] [2020-12-22 08:35:42,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:35:42,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:35:42,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:35:42,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159902711] [2020-12-22 08:35:42,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:35:42,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-12-22 08:35:42,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379785061] [2020-12-22 08:35:42,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-22 08:35:42,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:35:42,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-22 08:35:42,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2020-12-22 08:35:42,840 INFO L87 Difference]: Start difference. First operand 223 states and 286 transitions. Second operand 19 states. [2020-12-22 08:35:43,148 WARN L197 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2020-12-22 08:35:43,762 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-12-22 08:35:43,973 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2020-12-22 08:35:44,580 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-12-22 08:35:45,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:35:45,951 INFO L93 Difference]: Finished difference Result 501 states and 683 transitions. [2020-12-22 08:35:45,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-12-22 08:35:45,952 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 52 [2020-12-22 08:35:45,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:35:45,956 INFO L225 Difference]: With dead ends: 501 [2020-12-22 08:35:45,956 INFO L226 Difference]: Without dead ends: 495 [2020-12-22 08:35:45,957 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-12-22 08:35:45,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2020-12-22 08:35:45,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 223. [2020-12-22 08:35:45,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-12-22 08:35:45,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 285 transitions. [2020-12-22 08:35:45,983 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 285 transitions. Word has length 52 [2020-12-22 08:35:45,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:35:45,984 INFO L481 AbstractCegarLoop]: Abstraction has 223 states and 285 transitions. [2020-12-22 08:35:45,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-22 08:35:45,985 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 285 transitions. [2020-12-22 08:35:45,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-22 08:35:45,986 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:35:45,986 INFO L422 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] [2020-12-22 08:35:45,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 08:35:45,986 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:35:45,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:35:45,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1783814727, now seen corresponding path program 1 times [2020-12-22 08:35:45,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:35:45,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331099593] [2020-12-22 08:35:45,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:35:46,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:35:46,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:35:46,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331099593] [2020-12-22 08:35:46,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:35:46,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:35:46,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475834227] [2020-12-22 08:35:46,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 08:35:46,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:35:46,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 08:35:46,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-12-22 08:35:46,390 INFO L87 Difference]: Start difference. First operand 223 states and 285 transitions. Second operand 10 states. [2020-12-22 08:35:46,892 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 27 [2020-12-22 08:35:47,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:35:47,271 INFO L93 Difference]: Finished difference Result 611 states and 839 transitions. [2020-12-22 08:35:47,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-22 08:35:47,272 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 52 [2020-12-22 08:35:47,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:35:47,275 INFO L225 Difference]: With dead ends: 611 [2020-12-22 08:35:47,276 INFO L226 Difference]: Without dead ends: 488 [2020-12-22 08:35:47,277 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2020-12-22 08:35:47,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2020-12-22 08:35:47,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 184. [2020-12-22 08:35:47,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-12-22 08:35:47,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 239 transitions. [2020-12-22 08:35:47,305 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 239 transitions. Word has length 52 [2020-12-22 08:35:47,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:35:47,306 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 239 transitions. [2020-12-22 08:35:47,306 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 08:35:47,306 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 239 transitions. [2020-12-22 08:35:47,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-22 08:35:47,307 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:35:47,307 INFO L422 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] [2020-12-22 08:35:47,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 08:35:47,307 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:35:47,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:35:47,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1706910886, now seen corresponding path program 1 times [2020-12-22 08:35:47,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:35:47,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842677064] [2020-12-22 08:35:47,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:35:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:35:47,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:35:47,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842677064] [2020-12-22 08:35:47,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:35:47,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-12-22 08:35:47,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062628659] [2020-12-22 08:35:47,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-22 08:35:47,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:35:47,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-22 08:35:47,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2020-12-22 08:35:47,889 INFO L87 Difference]: Start difference. First operand 184 states and 239 transitions. Second operand 19 states. [2020-12-22 08:35:49,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:35:49,319 INFO L93 Difference]: Finished difference Result 211 states and 266 transitions. [2020-12-22 08:35:49,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-22 08:35:49,320 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 52 [2020-12-22 08:35:49,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:35:49,322 INFO L225 Difference]: With dead ends: 211 [2020-12-22 08:35:49,322 INFO L226 Difference]: Without dead ends: 207 [2020-12-22 08:35:49,323 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=250, Invalid=1082, Unknown=0, NotChecked=0, Total=1332 [2020-12-22 08:35:49,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2020-12-22 08:35:49,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 188. [2020-12-22 08:35:49,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-12-22 08:35:49,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 245 transitions. [2020-12-22 08:35:49,354 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 245 transitions. Word has length 52 [2020-12-22 08:35:49,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:35:49,355 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 245 transitions. [2020-12-22 08:35:49,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-22 08:35:49,355 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 245 transitions. [2020-12-22 08:35:49,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-22 08:35:49,356 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:35:49,356 INFO L422 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] [2020-12-22 08:35:49,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 08:35:49,356 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:35:49,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:35:49,357 INFO L82 PathProgramCache]: Analyzing trace with hash -987220198, now seen corresponding path program 1 times [2020-12-22 08:35:49,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:35:49,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684908677] [2020-12-22 08:35:49,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:35:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:35:49,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:35:49,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684908677] [2020-12-22 08:35:49,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:35:49,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-12-22 08:35:49,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171434586] [2020-12-22 08:35:49,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-22 08:35:49,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:35:49,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-22 08:35:49,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-12-22 08:35:49,814 INFO L87 Difference]: Start difference. First operand 188 states and 245 transitions. Second operand 13 states. [2020-12-22 08:35:50,343 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2020-12-22 08:35:50,504 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2020-12-22 08:35:50,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:35:50,814 INFO L93 Difference]: Finished difference Result 304 states and 408 transitions. [2020-12-22 08:35:50,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 08:35:50,814 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 53 [2020-12-22 08:35:50,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:35:50,816 INFO L225 Difference]: With dead ends: 304 [2020-12-22 08:35:50,817 INFO L226 Difference]: Without dead ends: 284 [2020-12-22 08:35:50,817 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2020-12-22 08:35:50,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-12-22 08:35:50,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 168. [2020-12-22 08:35:50,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-12-22 08:35:50,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 220 transitions. [2020-12-22 08:35:50,843 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 220 transitions. Word has length 53 [2020-12-22 08:35:50,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:35:50,843 INFO L481 AbstractCegarLoop]: Abstraction has 168 states and 220 transitions. [2020-12-22 08:35:50,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-22 08:35:50,843 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 220 transitions. [2020-12-22 08:35:50,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-22 08:35:50,844 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:35:50,844 INFO L422 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] [2020-12-22 08:35:50,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 08:35:50,845 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:35:50,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:35:50,845 INFO L82 PathProgramCache]: Analyzing trace with hash 339917441, now seen corresponding path program 1 times [2020-12-22 08:35:50,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:35:50,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90106328] [2020-12-22 08:35:50,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:35:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:35:50,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:35:50,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90106328] [2020-12-22 08:35:50,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:35:50,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 08:35:50,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249629325] [2020-12-22 08:35:50,999 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 08:35:50,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:35:51,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 08:35:51,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-12-22 08:35:51,000 INFO L87 Difference]: Start difference. First operand 168 states and 220 transitions. Second operand 10 states. [2020-12-22 08:35:51,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:35:51,901 INFO L93 Difference]: Finished difference Result 446 states and 614 transitions. [2020-12-22 08:35:51,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-22 08:35:51,902 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 53 [2020-12-22 08:35:51,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:35:51,904 INFO L225 Difference]: With dead ends: 446 [2020-12-22 08:35:51,904 INFO L226 Difference]: Without dead ends: 344 [2020-12-22 08:35:51,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2020-12-22 08:35:51,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2020-12-22 08:35:51,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 168. [2020-12-22 08:35:51,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-12-22 08:35:51,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 219 transitions. [2020-12-22 08:35:51,931 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 219 transitions. Word has length 53 [2020-12-22 08:35:51,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:35:51,932 INFO L481 AbstractCegarLoop]: Abstraction has 168 states and 219 transitions. [2020-12-22 08:35:51,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 08:35:51,932 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 219 transitions. [2020-12-22 08:35:51,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-22 08:35:51,933 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:35:51,933 INFO L422 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] [2020-12-22 08:35:51,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 08:35:51,933 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:35:51,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:35:51,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1175492289, now seen corresponding path program 1 times [2020-12-22 08:35:51,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:35:51,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471325637] [2020-12-22 08:35:51,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:35:51,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:35:52,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:35:52,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471325637] [2020-12-22 08:35:52,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:35:52,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:35:52,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874089390] [2020-12-22 08:35:52,047 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:35:52,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:35:52,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:35:52,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:35:52,048 INFO L87 Difference]: Start difference. First operand 168 states and 219 transitions. Second operand 9 states. [2020-12-22 08:35:52,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:35:52,518 INFO L93 Difference]: Finished difference Result 317 states and 433 transitions. [2020-12-22 08:35:52,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 08:35:52,518 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 54 [2020-12-22 08:35:52,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:35:52,520 INFO L225 Difference]: With dead ends: 317 [2020-12-22 08:35:52,520 INFO L226 Difference]: Without dead ends: 215 [2020-12-22 08:35:52,521 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-12-22 08:35:52,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2020-12-22 08:35:52,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 168. [2020-12-22 08:35:52,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-12-22 08:35:52,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 218 transitions. [2020-12-22 08:35:52,550 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 218 transitions. Word has length 54 [2020-12-22 08:35:52,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:35:52,550 INFO L481 AbstractCegarLoop]: Abstraction has 168 states and 218 transitions. [2020-12-22 08:35:52,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:35:52,550 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 218 transitions. [2020-12-22 08:35:52,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-22 08:35:52,551 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:35:52,551 INFO L422 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] [2020-12-22 08:35:52,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 08:35:52,552 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:35:52,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:35:52,552 INFO L82 PathProgramCache]: Analyzing trace with hash -824240014, now seen corresponding path program 1 times [2020-12-22 08:35:52,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:35:52,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369055017] [2020-12-22 08:35:52,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:35:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:35:53,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:35:53,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369055017] [2020-12-22 08:35:53,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:35:53,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-22 08:35:53,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101139199] [2020-12-22 08:35:53,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-22 08:35:53,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:35:53,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-22 08:35:53,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-12-22 08:35:53,068 INFO L87 Difference]: Start difference. First operand 168 states and 218 transitions. Second operand 18 states. [2020-12-22 08:35:53,233 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2020-12-22 08:35:53,790 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-12-22 08:35:54,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:35:54,801 INFO L93 Difference]: Finished difference Result 362 states and 498 transitions. [2020-12-22 08:35:54,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-22 08:35:54,802 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 55 [2020-12-22 08:35:54,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:35:54,804 INFO L225 Difference]: With dead ends: 362 [2020-12-22 08:35:54,804 INFO L226 Difference]: Without dead ends: 356 [2020-12-22 08:35:54,805 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=200, Invalid=856, Unknown=0, NotChecked=0, Total=1056 [2020-12-22 08:35:54,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2020-12-22 08:35:54,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 174. [2020-12-22 08:35:54,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-12-22 08:35:54,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 226 transitions. [2020-12-22 08:35:54,848 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 226 transitions. Word has length 55 [2020-12-22 08:35:54,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:35:54,848 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 226 transitions. [2020-12-22 08:35:54,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-22 08:35:54,848 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 226 transitions. [2020-12-22 08:35:54,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-22 08:35:54,849 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:35:54,849 INFO L422 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] [2020-12-22 08:35:54,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 08:35:54,850 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:35:54,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:35:54,850 INFO L82 PathProgramCache]: Analyzing trace with hash -995695438, now seen corresponding path program 1 times [2020-12-22 08:35:54,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:35:54,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224024278] [2020-12-22 08:35:54,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:35:54,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:35:55,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:35:55,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224024278] [2020-12-22 08:35:55,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:35:55,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-12-22 08:35:55,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622268809] [2020-12-22 08:35:55,395 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-22 08:35:55,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:35:55,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-22 08:35:55,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-12-22 08:35:55,396 INFO L87 Difference]: Start difference. First operand 174 states and 226 transitions. Second operand 14 states. [2020-12-22 08:35:55,939 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2020-12-22 08:35:56,080 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 36 [2020-12-22 08:35:57,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:35:57,489 INFO L93 Difference]: Finished difference Result 646 states and 908 transitions. [2020-12-22 08:35:57,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-22 08:35:57,490 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 56 [2020-12-22 08:35:57,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:35:57,493 INFO L225 Difference]: With dead ends: 646 [2020-12-22 08:35:57,493 INFO L226 Difference]: Without dead ends: 640 [2020-12-22 08:35:57,497 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=159, Invalid=543, Unknown=0, NotChecked=0, Total=702 [2020-12-22 08:35:57,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2020-12-22 08:35:57,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 180. [2020-12-22 08:35:57,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-12-22 08:35:57,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 234 transitions. [2020-12-22 08:35:57,537 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 234 transitions. Word has length 56 [2020-12-22 08:35:57,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:35:57,537 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 234 transitions. [2020-12-22 08:35:57,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-22 08:35:57,537 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 234 transitions. [2020-12-22 08:35:57,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-22 08:35:57,538 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:35:57,538 INFO L422 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] [2020-12-22 08:35:57,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 08:35:57,538 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:35:57,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:35:57,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1326812170, now seen corresponding path program 1 times [2020-12-22 08:35:57,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:35:57,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935845567] [2020-12-22 08:35:57,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:35:57,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:35:57,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:35:57,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935845567] [2020-12-22 08:35:57,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:35:57,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:35:57,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506723837] [2020-12-22 08:35:57,899 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:35:57,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:35:57,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:35:57,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:35:57,902 INFO L87 Difference]: Start difference. First operand 180 states and 234 transitions. Second operand 11 states. [2020-12-22 08:35:58,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:35:58,849 INFO L93 Difference]: Finished difference Result 474 states and 654 transitions. [2020-12-22 08:35:58,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 08:35:58,849 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2020-12-22 08:35:58,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:35:58,852 INFO L225 Difference]: With dead ends: 474 [2020-12-22 08:35:58,852 INFO L226 Difference]: Without dead ends: 468 [2020-12-22 08:35:58,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2020-12-22 08:35:58,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2020-12-22 08:35:58,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 162. [2020-12-22 08:35:58,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-12-22 08:35:58,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 211 transitions. [2020-12-22 08:35:58,891 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 211 transitions. Word has length 56 [2020-12-22 08:35:58,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:35:58,891 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 211 transitions. [2020-12-22 08:35:58,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:35:58,891 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 211 transitions. [2020-12-22 08:35:58,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-12-22 08:35:58,892 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:35:58,892 INFO L422 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] [2020-12-22 08:35:58,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 08:35:58,893 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:35:58,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:35:58,893 INFO L82 PathProgramCache]: Analyzing trace with hash 2042294308, now seen corresponding path program 1 times [2020-12-22 08:35:58,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:35:58,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677293599] [2020-12-22 08:35:58,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:35:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:35:58,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:35:58,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677293599] [2020-12-22 08:35:58,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:35:58,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:35:58,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287855662] [2020-12-22 08:35:58,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:35:58,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:35:58,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:35:58,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:35:58,947 INFO L87 Difference]: Start difference. First operand 162 states and 211 transitions. Second operand 3 states. [2020-12-22 08:35:59,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:35:59,028 INFO L93 Difference]: Finished difference Result 322 states and 447 transitions. [2020-12-22 08:35:59,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:35:59,029 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-12-22 08:35:59,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:35:59,030 INFO L225 Difference]: With dead ends: 322 [2020-12-22 08:35:59,030 INFO L226 Difference]: Without dead ends: 238 [2020-12-22 08:35:59,031 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:35:59,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-12-22 08:35:59,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 236. [2020-12-22 08:35:59,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-12-22 08:35:59,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 318 transitions. [2020-12-22 08:35:59,084 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 318 transitions. Word has length 73 [2020-12-22 08:35:59,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:35:59,084 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 318 transitions. [2020-12-22 08:35:59,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:35:59,084 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 318 transitions. [2020-12-22 08:35:59,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-22 08:35:59,085 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:35:59,085 INFO L422 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] [2020-12-22 08:35:59,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 08:35:59,086 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:35:59,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:35:59,086 INFO L82 PathProgramCache]: Analyzing trace with hash -786943772, now seen corresponding path program 1 times [2020-12-22 08:35:59,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:35:59,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720266033] [2020-12-22 08:35:59,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:35:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:35:59,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:35:59,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720266033] [2020-12-22 08:35:59,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:35:59,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:35:59,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515418217] [2020-12-22 08:35:59,178 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:35:59,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:35:59,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:35:59,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:35:59,179 INFO L87 Difference]: Start difference. First operand 236 states and 318 transitions. Second operand 5 states. [2020-12-22 08:35:59,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:35:59,455 INFO L93 Difference]: Finished difference Result 766 states and 1100 transitions. [2020-12-22 08:35:59,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:35:59,456 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 75 [2020-12-22 08:35:59,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:35:59,459 INFO L225 Difference]: With dead ends: 766 [2020-12-22 08:35:59,459 INFO L226 Difference]: Without dead ends: 608 [2020-12-22 08:35:59,460 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:35:59,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2020-12-22 08:35:59,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 318. [2020-12-22 08:35:59,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-12-22 08:35:59,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 441 transitions. [2020-12-22 08:35:59,558 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 441 transitions. Word has length 75 [2020-12-22 08:35:59,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:35:59,558 INFO L481 AbstractCegarLoop]: Abstraction has 318 states and 441 transitions. [2020-12-22 08:35:59,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:35:59,559 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 441 transitions. [2020-12-22 08:35:59,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-22 08:35:59,560 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:35:59,560 INFO L422 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] [2020-12-22 08:35:59,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 08:35:59,561 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:35:59,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:35:59,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1322322984, now seen corresponding path program 1 times [2020-12-22 08:35:59,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:35:59,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219106314] [2020-12-22 08:35:59,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:35:59,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:35:59,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:35:59,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219106314] [2020-12-22 08:35:59,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:35:59,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:35:59,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425605642] [2020-12-22 08:35:59,646 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:35:59,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:35:59,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:35:59,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:35:59,647 INFO L87 Difference]: Start difference. First operand 318 states and 441 transitions. Second operand 5 states. [2020-12-22 08:35:59,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:35:59,931 INFO L93 Difference]: Finished difference Result 808 states and 1163 transitions. [2020-12-22 08:35:59,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:35:59,932 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 75 [2020-12-22 08:35:59,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:35:59,937 INFO L225 Difference]: With dead ends: 808 [2020-12-22 08:35:59,937 INFO L226 Difference]: Without dead ends: 650 [2020-12-22 08:35:59,938 INFO L677 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 [2020-12-22 08:35:59,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2020-12-22 08:36:00,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 482. [2020-12-22 08:36:00,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-12-22 08:36:00,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 687 transitions. [2020-12-22 08:36:00,094 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 687 transitions. Word has length 75 [2020-12-22 08:36:00,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:00,094 INFO L481 AbstractCegarLoop]: Abstraction has 482 states and 687 transitions. [2020-12-22 08:36:00,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:36:00,094 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 687 transitions. [2020-12-22 08:36:00,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-22 08:36:00,095 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:00,096 INFO L422 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] [2020-12-22 08:36:00,096 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 08:36:00,096 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:00,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:00,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1446907099, now seen corresponding path program 1 times [2020-12-22 08:36:00,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:00,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093718477] [2020-12-22 08:36:00,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:00,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:00,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:00,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093718477] [2020-12-22 08:36:00,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:00,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:36:00,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510557390] [2020-12-22 08:36:00,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:36:00,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:00,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:36:00,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:36:00,154 INFO L87 Difference]: Start difference. First operand 482 states and 687 transitions. Second operand 3 states. [2020-12-22 08:36:00,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:00,437 INFO L93 Difference]: Finished difference Result 1134 states and 1659 transitions. [2020-12-22 08:36:00,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:36:00,437 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-12-22 08:36:00,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:00,441 INFO L225 Difference]: With dead ends: 1134 [2020-12-22 08:36:00,441 INFO L226 Difference]: Without dead ends: 730 [2020-12-22 08:36:00,442 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:36:00,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2020-12-22 08:36:00,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 728. [2020-12-22 08:36:00,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 728 states. [2020-12-22 08:36:00,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 1040 transitions. [2020-12-22 08:36:00,688 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 1040 transitions. Word has length 75 [2020-12-22 08:36:00,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:00,689 INFO L481 AbstractCegarLoop]: Abstraction has 728 states and 1040 transitions. [2020-12-22 08:36:00,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:36:00,689 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 1040 transitions. [2020-12-22 08:36:00,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-22 08:36:00,690 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:00,691 INFO L422 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] [2020-12-22 08:36:00,691 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 08:36:00,691 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:00,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:00,691 INFO L82 PathProgramCache]: Analyzing trace with hash 2078767204, now seen corresponding path program 1 times [2020-12-22 08:36:00,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:00,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89660212] [2020-12-22 08:36:00,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:00,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:00,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89660212] [2020-12-22 08:36:00,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:00,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:36:00,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584142844] [2020-12-22 08:36:00,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:36:00,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:00,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:36:00,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:36:00,737 INFO L87 Difference]: Start difference. First operand 728 states and 1040 transitions. Second operand 3 states. [2020-12-22 08:36:01,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:01,304 INFO L93 Difference]: Finished difference Result 1930 states and 2786 transitions. [2020-12-22 08:36:01,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:36:01,305 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-12-22 08:36:01,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:01,314 INFO L225 Difference]: With dead ends: 1930 [2020-12-22 08:36:01,314 INFO L226 Difference]: Without dead ends: 1280 [2020-12-22 08:36:01,317 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:36:01,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1280 states. [2020-12-22 08:36:01,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1280 to 1278. [2020-12-22 08:36:01,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1278 states. [2020-12-22 08:36:01,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1802 transitions. [2020-12-22 08:36:01,833 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1802 transitions. Word has length 75 [2020-12-22 08:36:01,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:01,833 INFO L481 AbstractCegarLoop]: Abstraction has 1278 states and 1802 transitions. [2020-12-22 08:36:01,833 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:36:01,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1802 transitions. [2020-12-22 08:36:01,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-22 08:36:01,835 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:01,835 INFO L422 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] [2020-12-22 08:36:01,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-22 08:36:01,835 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:01,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:01,836 INFO L82 PathProgramCache]: Analyzing trace with hash 95104542, now seen corresponding path program 1 times [2020-12-22 08:36:01,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:01,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543054053] [2020-12-22 08:36:01,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:01,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:01,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:01,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543054053] [2020-12-22 08:36:01,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:01,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:36:01,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17627787] [2020-12-22 08:36:01,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:36:01,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:01,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:36:01,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:36:01,950 INFO L87 Difference]: Start difference. First operand 1278 states and 1802 transitions. Second operand 5 states. [2020-12-22 08:36:02,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:02,593 INFO L93 Difference]: Finished difference Result 2524 states and 3586 transitions. [2020-12-22 08:36:02,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:36:02,596 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 75 [2020-12-22 08:36:02,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:02,606 INFO L225 Difference]: With dead ends: 2524 [2020-12-22 08:36:02,606 INFO L226 Difference]: Without dead ends: 2080 [2020-12-22 08:36:02,608 INFO L677 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 [2020-12-22 08:36:02,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2080 states. [2020-12-22 08:36:03,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2080 to 1580. [2020-12-22 08:36:03,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1580 states. [2020-12-22 08:36:03,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 2234 transitions. [2020-12-22 08:36:03,105 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 2234 transitions. Word has length 75 [2020-12-22 08:36:03,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:03,105 INFO L481 AbstractCegarLoop]: Abstraction has 1580 states and 2234 transitions. [2020-12-22 08:36:03,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:36:03,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 2234 transitions. [2020-12-22 08:36:03,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-22 08:36:03,107 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:03,107 INFO L422 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] [2020-12-22 08:36:03,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-22 08:36:03,108 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:03,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:03,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1963614716, now seen corresponding path program 1 times [2020-12-22 08:36:03,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:03,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545541962] [2020-12-22 08:36:03,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:03,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:03,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545541962] [2020-12-22 08:36:03,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:03,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:36:03,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763096500] [2020-12-22 08:36:03,161 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:36:03,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:03,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:36:03,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:36:03,162 INFO L87 Difference]: Start difference. First operand 1580 states and 2234 transitions. Second operand 3 states. [2020-12-22 08:36:04,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:04,349 INFO L93 Difference]: Finished difference Result 4024 states and 5703 transitions. [2020-12-22 08:36:04,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:36:04,350 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-12-22 08:36:04,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:04,362 INFO L225 Difference]: With dead ends: 4024 [2020-12-22 08:36:04,362 INFO L226 Difference]: Without dead ends: 2522 [2020-12-22 08:36:04,365 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:36:04,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2522 states. [2020-12-22 08:36:05,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2522 to 2368. [2020-12-22 08:36:05,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2368 states. [2020-12-22 08:36:05,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2368 states to 2368 states and 3306 transitions. [2020-12-22 08:36:05,095 INFO L78 Accepts]: Start accepts. Automaton has 2368 states and 3306 transitions. Word has length 76 [2020-12-22 08:36:05,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:05,095 INFO L481 AbstractCegarLoop]: Abstraction has 2368 states and 3306 transitions. [2020-12-22 08:36:05,095 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:36:05,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2368 states and 3306 transitions. [2020-12-22 08:36:05,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 08:36:05,097 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:05,097 INFO L422 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] [2020-12-22 08:36:05,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-22 08:36:05,097 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:05,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:05,098 INFO L82 PathProgramCache]: Analyzing trace with hash -628172474, now seen corresponding path program 1 times [2020-12-22 08:36:05,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:05,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975008514] [2020-12-22 08:36:05,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:05,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:05,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975008514] [2020-12-22 08:36:05,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:05,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:36:05,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684539217] [2020-12-22 08:36:05,151 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:36:05,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:05,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:36:05,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:36:05,152 INFO L87 Difference]: Start difference. First operand 2368 states and 3306 transitions. Second operand 3 states. [2020-12-22 08:36:06,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:06,444 INFO L93 Difference]: Finished difference Result 6708 states and 9328 transitions. [2020-12-22 08:36:06,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:36:06,444 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2020-12-22 08:36:06,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:06,460 INFO L225 Difference]: With dead ends: 6708 [2020-12-22 08:36:06,460 INFO L226 Difference]: Without dead ends: 4418 [2020-12-22 08:36:06,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:36:06,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4418 states. [2020-12-22 08:36:07,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4418 to 4176. [2020-12-22 08:36:07,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4176 states. [2020-12-22 08:36:07,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4176 states to 4176 states and 5746 transitions. [2020-12-22 08:36:07,806 INFO L78 Accepts]: Start accepts. Automaton has 4176 states and 5746 transitions. Word has length 77 [2020-12-22 08:36:07,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:07,807 INFO L481 AbstractCegarLoop]: Abstraction has 4176 states and 5746 transitions. [2020-12-22 08:36:07,807 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:36:07,807 INFO L276 IsEmpty]: Start isEmpty. Operand 4176 states and 5746 transitions. [2020-12-22 08:36:07,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 08:36:07,808 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:07,808 INFO L422 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] [2020-12-22 08:36:07,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-22 08:36:07,808 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:07,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:07,809 INFO L82 PathProgramCache]: Analyzing trace with hash -763788569, now seen corresponding path program 1 times [2020-12-22 08:36:07,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:07,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301910475] [2020-12-22 08:36:07,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:07,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:07,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:07,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301910475] [2020-12-22 08:36:07,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:07,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:36:07,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118191962] [2020-12-22 08:36:07,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:36:07,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:07,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:36:07,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:36:07,861 INFO L87 Difference]: Start difference. First operand 4176 states and 5746 transitions. Second operand 3 states. [2020-12-22 08:36:10,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:10,176 INFO L93 Difference]: Finished difference Result 11892 states and 16228 transitions. [2020-12-22 08:36:10,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:36:10,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-12-22 08:36:10,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:10,205 INFO L225 Difference]: With dead ends: 11892 [2020-12-22 08:36:10,205 INFO L226 Difference]: Without dead ends: 7794 [2020-12-22 08:36:10,211 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:36:10,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7794 states. [2020-12-22 08:36:12,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7794 to 7312. [2020-12-22 08:36:12,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7312 states. [2020-12-22 08:36:12,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7312 states to 7312 states and 9846 transitions. [2020-12-22 08:36:12,159 INFO L78 Accepts]: Start accepts. Automaton has 7312 states and 9846 transitions. Word has length 78 [2020-12-22 08:36:12,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:12,159 INFO L481 AbstractCegarLoop]: Abstraction has 7312 states and 9846 transitions. [2020-12-22 08:36:12,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:36:12,159 INFO L276 IsEmpty]: Start isEmpty. Operand 7312 states and 9846 transitions. [2020-12-22 08:36:12,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:36:12,160 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:12,160 INFO L422 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] [2020-12-22 08:36:12,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-22 08:36:12,161 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:12,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:12,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1461539563, now seen corresponding path program 1 times [2020-12-22 08:36:12,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:12,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001472826] [2020-12-22 08:36:12,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:12,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:12,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001472826] [2020-12-22 08:36:12,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:12,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 08:36:12,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371619392] [2020-12-22 08:36:12,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:36:12,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:12,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:36:12,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:36:12,241 INFO L87 Difference]: Start difference. First operand 7312 states and 9846 transitions. Second operand 6 states. [2020-12-22 08:36:15,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:15,319 INFO L93 Difference]: Finished difference Result 11200 states and 14982 transitions. [2020-12-22 08:36:15,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 08:36:15,320 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2020-12-22 08:36:15,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:15,346 INFO L225 Difference]: With dead ends: 11200 [2020-12-22 08:36:15,346 INFO L226 Difference]: Without dead ends: 11198 [2020-12-22 08:36:15,349 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:36:15,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11198 states. [2020-12-22 08:36:17,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11198 to 7504. [2020-12-22 08:36:17,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7504 states. [2020-12-22 08:36:17,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7504 states to 7504 states and 9958 transitions. [2020-12-22 08:36:17,562 INFO L78 Accepts]: Start accepts. Automaton has 7504 states and 9958 transitions. Word has length 79 [2020-12-22 08:36:17,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:17,562 INFO L481 AbstractCegarLoop]: Abstraction has 7504 states and 9958 transitions. [2020-12-22 08:36:17,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:36:17,562 INFO L276 IsEmpty]: Start isEmpty. Operand 7504 states and 9958 transitions. [2020-12-22 08:36:17,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:36:17,563 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:17,563 INFO L422 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] [2020-12-22 08:36:17,563 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-22 08:36:17,564 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:17,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:17,564 INFO L82 PathProgramCache]: Analyzing trace with hash 965347417, now seen corresponding path program 1 times [2020-12-22 08:36:17,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:17,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97855148] [2020-12-22 08:36:17,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:17,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:17,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:17,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97855148] [2020-12-22 08:36:17,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:17,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:36:17,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862535962] [2020-12-22 08:36:17,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:36:17,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:17,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:36:17,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:36:17,615 INFO L87 Difference]: Start difference. First operand 7504 states and 9958 transitions. Second operand 3 states. [2020-12-22 08:36:19,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:19,667 INFO L93 Difference]: Finished difference Result 15140 states and 20124 transitions. [2020-12-22 08:36:19,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:36:19,667 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2020-12-22 08:36:19,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:19,683 INFO L225 Difference]: With dead ends: 15140 [2020-12-22 08:36:19,683 INFO L226 Difference]: Without dead ends: 7714 [2020-12-22 08:36:19,692 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:36:19,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7714 states. [2020-12-22 08:36:21,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7714 to 7712. [2020-12-22 08:36:21,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7712 states. [2020-12-22 08:36:21,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7712 states to 7712 states and 10098 transitions. [2020-12-22 08:36:21,746 INFO L78 Accepts]: Start accepts. Automaton has 7712 states and 10098 transitions. Word has length 79 [2020-12-22 08:36:21,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:21,747 INFO L481 AbstractCegarLoop]: Abstraction has 7712 states and 10098 transitions. [2020-12-22 08:36:21,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:36:21,747 INFO L276 IsEmpty]: Start isEmpty. Operand 7712 states and 10098 transitions. [2020-12-22 08:36:21,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-22 08:36:21,749 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:21,749 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:21,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-22 08:36:21,750 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:21,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:21,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1381911094, now seen corresponding path program 1 times [2020-12-22 08:36:21,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:21,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894011381] [2020-12-22 08:36:21,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:21,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:22,026 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:22,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894011381] [2020-12-22 08:36:22,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276655543] [2020-12-22 08:36:22,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 08:36:22,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:22,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 08:36:22,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 08:36:22,526 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 08:36:22,599 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 08:36:22,739 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-22 08:36:23,029 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:36:23,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 08:36:23,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 17 [2020-12-22 08:36:23,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581044912] [2020-12-22 08:36:23,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-22 08:36:23,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:23,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-22 08:36:23,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2020-12-22 08:36:23,032 INFO L87 Difference]: Start difference. First operand 7712 states and 10098 transitions. Second operand 18 states. [2020-12-22 08:36:25,383 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2020-12-22 08:36:28,355 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2020-12-22 08:36:28,546 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-12-22 08:36:30,429 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 35 [2020-12-22 08:36:30,904 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2020-12-22 08:36:48,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:48,540 INFO L93 Difference]: Finished difference Result 66656 states and 85795 transitions. [2020-12-22 08:36:48,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2020-12-22 08:36:48,543 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 101 [2020-12-22 08:36:48,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:48,681 INFO L225 Difference]: With dead ends: 66656 [2020-12-22 08:36:48,681 INFO L226 Difference]: Without dead ends: 59022 [2020-12-22 08:36:48,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2651 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=1537, Invalid=6653, Unknown=0, NotChecked=0, Total=8190 [2020-12-22 08:36:48,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59022 states. [2020-12-22 08:36:54,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59022 to 16490. [2020-12-22 08:36:54,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16490 states. [2020-12-22 08:36:54,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16490 states to 16490 states and 21452 transitions. [2020-12-22 08:36:54,685 INFO L78 Accepts]: Start accepts. Automaton has 16490 states and 21452 transitions. Word has length 101 [2020-12-22 08:36:54,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:36:54,685 INFO L481 AbstractCegarLoop]: Abstraction has 16490 states and 21452 transitions. [2020-12-22 08:36:54,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-22 08:36:54,685 INFO L276 IsEmpty]: Start isEmpty. Operand 16490 states and 21452 transitions. [2020-12-22 08:36:54,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-12-22 08:36:54,690 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:36:54,690 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:36:54,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-12-22 08:36:54,904 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:36:54,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:36:54,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1466079819, now seen corresponding path program 1 times [2020-12-22 08:36:54,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:36:54,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392844156] [2020-12-22 08:36:54,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:36:54,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:36:54,960 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-22 08:36:54,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392844156] [2020-12-22 08:36:54,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:36:54,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:36:54,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390507885] [2020-12-22 08:36:54,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:36:54,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:36:54,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:36:54,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:36:54,967 INFO L87 Difference]: Start difference. First operand 16490 states and 21452 transitions. Second operand 3 states. [2020-12-22 08:36:59,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:36:59,920 INFO L93 Difference]: Finished difference Result 31508 states and 41189 transitions. [2020-12-22 08:36:59,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:36:59,921 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2020-12-22 08:36:59,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:36:59,952 INFO L225 Difference]: With dead ends: 31508 [2020-12-22 08:36:59,952 INFO L226 Difference]: Without dead ends: 15110 [2020-12-22 08:36:59,973 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:36:59,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15110 states. [2020-12-22 08:37:04,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15110 to 15110. [2020-12-22 08:37:04,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15110 states. [2020-12-22 08:37:04,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15110 states to 15110 states and 19588 transitions. [2020-12-22 08:37:04,887 INFO L78 Accepts]: Start accepts. Automaton has 15110 states and 19588 transitions. Word has length 102 [2020-12-22 08:37:04,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:37:04,888 INFO L481 AbstractCegarLoop]: Abstraction has 15110 states and 19588 transitions. [2020-12-22 08:37:04,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:37:04,888 INFO L276 IsEmpty]: Start isEmpty. Operand 15110 states and 19588 transitions. [2020-12-22 08:37:04,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-12-22 08:37:04,892 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:37:04,892 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:37:04,892 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-12-22 08:37:04,892 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:37:04,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:37:04,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1423038550, now seen corresponding path program 1 times [2020-12-22 08:37:04,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:37:04,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421279034] [2020-12-22 08:37:04,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:37:04,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:37:05,100 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-22 08:37:05,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421279034] [2020-12-22 08:37:05,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:37:05,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:37:05,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786878291] [2020-12-22 08:37:05,102 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:37:05,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:37:05,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:37:05,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:37:05,103 INFO L87 Difference]: Start difference. First operand 15110 states and 19588 transitions. Second operand 11 states. [2020-12-22 08:37:29,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:37:29,122 INFO L93 Difference]: Finished difference Result 85046 states and 109232 transitions. [2020-12-22 08:37:29,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:37:29,123 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 102 [2020-12-22 08:37:29,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:37:29,244 INFO L225 Difference]: With dead ends: 85046 [2020-12-22 08:37:29,244 INFO L226 Difference]: Without dead ends: 70016 [2020-12-22 08:37:29,276 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:37:29,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70016 states. [2020-12-22 08:37:35,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70016 to 15118. [2020-12-22 08:37:35,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15118 states. [2020-12-22 08:37:35,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15118 states to 15118 states and 19596 transitions. [2020-12-22 08:37:35,131 INFO L78 Accepts]: Start accepts. Automaton has 15118 states and 19596 transitions. Word has length 102 [2020-12-22 08:37:35,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:37:35,132 INFO L481 AbstractCegarLoop]: Abstraction has 15118 states and 19596 transitions. [2020-12-22 08:37:35,132 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:37:35,132 INFO L276 IsEmpty]: Start isEmpty. Operand 15118 states and 19596 transitions. [2020-12-22 08:37:35,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-12-22 08:37:35,179 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:37:35,180 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:37:35,180 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-22 08:37:35,180 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:37:35,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:37:35,181 INFO L82 PathProgramCache]: Analyzing trace with hash -76770222, now seen corresponding path program 1 times [2020-12-22 08:37:35,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:37:35,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244662648] [2020-12-22 08:37:35,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:37:35,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:37:35,873 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:37:35,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244662648] [2020-12-22 08:37:35,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207641622] [2020-12-22 08:37:35,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 08:37:36,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:37:36,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-22 08:37:36,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 08:37:36,191 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 08:37:36,251 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 08:37:36,418 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 08:37:36,793 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 29 [2020-12-22 08:37:37,094 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:37:37,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 08:37:37,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 10] total 27 [2020-12-22 08:37:37,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407544608] [2020-12-22 08:37:37,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-12-22 08:37:37,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:37:37,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-12-22 08:37:37,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=628, Unknown=0, NotChecked=0, Total=702 [2020-12-22 08:37:37,097 INFO L87 Difference]: Start difference. First operand 15118 states and 19596 transitions. Second operand 27 states. [2020-12-22 08:37:37,718 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-12-22 08:37:38,183 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2020-12-22 08:37:38,382 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2020-12-22 08:37:38,653 WARN L197 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2020-12-22 08:37:38,901 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 49 [2020-12-22 08:37:39,076 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2020-12-22 08:37:39,364 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2020-12-22 08:37:39,778 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2020-12-22 08:37:39,969 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2020-12-22 08:37:40,361 WARN L197 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2020-12-22 08:37:40,543 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2020-12-22 08:37:40,986 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2020-12-22 08:37:41,197 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2020-12-22 08:37:41,390 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2020-12-22 08:37:41,654 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2020-12-22 08:37:41,961 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2020-12-22 08:37:42,181 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2020-12-22 08:37:42,762 WARN L197 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2020-12-22 08:37:43,187 WARN L197 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 82 [2020-12-22 08:37:43,449 WARN L197 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2020-12-22 08:37:43,957 WARN L197 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 78 [2020-12-22 08:37:44,323 WARN L197 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2020-12-22 08:37:44,499 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 36 [2020-12-22 08:37:44,907 WARN L197 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 69 [2020-12-22 08:37:45,141 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2020-12-22 08:37:45,633 WARN L197 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 80 [2020-12-22 08:37:46,081 WARN L197 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 72 [2020-12-22 08:37:46,521 WARN L197 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 76 [2020-12-22 08:37:47,141 WARN L197 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 77 [2020-12-22 08:37:47,341 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2020-12-22 08:37:47,796 WARN L197 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 65 [2020-12-22 08:37:48,056 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-12-22 08:37:48,256 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 36 [2020-12-22 08:37:48,804 WARN L197 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 71 [2020-12-22 08:37:49,313 WARN L197 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 82 [2020-12-22 08:37:49,726 WARN L197 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 69 [2020-12-22 08:37:50,053 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 33 [2020-12-22 08:37:50,489 WARN L197 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2020-12-22 08:37:51,054 WARN L197 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 75 [2020-12-22 08:37:51,719 WARN L197 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 80 [2020-12-22 08:37:52,181 WARN L197 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 71 [2020-12-22 08:37:52,666 WARN L197 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 66 [2020-12-22 08:37:53,343 WARN L197 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2020-12-22 08:37:53,772 WARN L197 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 71 [2020-12-22 08:37:54,287 WARN L197 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 68 [2020-12-22 08:37:54,512 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2020-12-22 08:37:54,954 WARN L197 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2020-12-22 08:37:55,135 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 29 [2020-12-22 08:37:55,774 WARN L197 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 74 [2020-12-22 08:37:56,258 WARN L197 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 59 [2020-12-22 08:37:57,593 WARN L197 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 76 [2020-12-22 08:37:58,074 WARN L197 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 76 [2020-12-22 08:37:58,733 WARN L197 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 67 [2020-12-22 08:37:59,472 WARN L197 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 67 [2020-12-22 08:37:59,893 WARN L197 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2020-12-22 08:38:00,356 WARN L197 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 64 [2020-12-22 08:38:01,273 WARN L197 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2020-12-22 08:38:01,723 WARN L197 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2020-12-22 08:38:02,185 WARN L197 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 70 [2020-12-22 08:38:02,625 WARN L197 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 73 [2020-12-22 08:38:03,172 WARN L197 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 71 [2020-12-22 08:38:03,615 WARN L197 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 55 [2020-12-22 08:38:04,713 WARN L197 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 84 [2020-12-22 08:38:05,148 WARN L197 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 84 [2020-12-22 08:38:05,563 WARN L197 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2020-12-22 08:38:06,052 WARN L197 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2020-12-22 08:38:06,560 WARN L197 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2020-12-22 08:38:06,961 WARN L197 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2020-12-22 08:38:07,392 WARN L197 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2020-12-22 08:38:07,595 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 41 [2020-12-22 08:38:08,033 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2020-12-22 08:38:08,367 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2020-12-22 08:38:08,660 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2020-12-22 08:38:08,959 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 39 [2020-12-22 08:38:09,995 WARN L197 SmtUtils]: Spent 824.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 86 [2020-12-22 08:38:10,581 WARN L197 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 86 [2020-12-22 08:38:11,457 WARN L197 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 86 [2020-12-22 08:38:11,956 WARN L197 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 83 [2020-12-22 08:38:12,920 WARN L197 SmtUtils]: Spent 878.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 87 [2020-12-22 08:38:13,297 WARN L197 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2020-12-22 08:38:14,384 WARN L197 SmtUtils]: Spent 966.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 87 [2020-12-22 08:38:14,760 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2020-12-22 08:38:15,352 WARN L197 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 72 [2020-12-22 08:38:15,678 WARN L197 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2020-12-22 08:38:16,048 WARN L197 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2020-12-22 08:38:16,802 WARN L197 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 77 [2020-12-22 08:38:17,261 WARN L197 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 77 [2020-12-22 08:38:17,607 WARN L197 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2020-12-22 08:38:18,001 WARN L197 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2020-12-22 08:38:18,914 WARN L197 SmtUtils]: Spent 819.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 84 [2020-12-22 08:38:19,309 WARN L197 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 71 [2020-12-22 08:38:19,688 WARN L197 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2020-12-22 08:38:20,051 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2020-12-22 08:38:20,304 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2020-12-22 08:38:20,564 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2020-12-22 08:38:21,104 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2020-12-22 08:38:21,380 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2020-12-22 08:38:21,633 WARN L197 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-12-22 08:38:22,757 WARN L197 SmtUtils]: Spent 854.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 94 [2020-12-22 08:38:23,149 WARN L197 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2020-12-22 08:38:24,243 WARN L197 SmtUtils]: Spent 903.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 91 [2020-12-22 08:38:24,616 WARN L197 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 79 [2020-12-22 08:38:25,245 WARN L197 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 81 [2020-12-22 08:38:25,485 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2020-12-22 08:38:25,792 WARN L197 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-12-22 08:38:26,716 WARN L197 SmtUtils]: Spent 801.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 78 [2020-12-22 08:38:27,040 WARN L197 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2020-12-22 08:38:27,942 WARN L197 SmtUtils]: Spent 769.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 78 [2020-12-22 08:38:28,260 WARN L197 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2020-12-22 08:38:29,371 WARN L197 SmtUtils]: Spent 949.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 85 [2020-12-22 08:38:29,727 WARN L197 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2020-12-22 08:38:30,651 WARN L197 SmtUtils]: Spent 786.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 80 [2020-12-22 08:38:31,182 WARN L197 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 80 [2020-12-22 08:38:32,090 WARN L197 SmtUtils]: Spent 736.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 83 [2020-12-22 08:38:33,322 WARN L197 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 125 DAG size of output: 91 [2020-12-22 08:38:34,508 WARN L197 SmtUtils]: Spent 968.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 75 [2020-12-22 08:38:35,116 WARN L197 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2020-12-22 08:38:35,451 WARN L197 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2020-12-22 08:38:35,660 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-12-22 08:38:36,071 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2020-12-22 08:38:36,398 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-12-22 08:38:38,205 WARN L197 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 114 DAG size of output: 88 [2020-12-22 08:38:38,659 WARN L197 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 76 [2020-12-22 08:38:40,284 WARN L197 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 108 DAG size of output: 82 [2020-12-22 08:38:42,259 WARN L197 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 51 [2020-12-22 08:38:42,943 WARN L197 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 72 [2020-12-22 08:38:43,543 WARN L197 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2020-12-22 08:38:43,965 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2020-12-22 08:38:44,339 WARN L197 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 46 [2020-12-22 08:38:45,743 WARN L197 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2020-12-22 08:38:46,196 WARN L197 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2020-12-22 08:38:46,721 WARN L197 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2020-12-22 08:38:47,285 WARN L197 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2020-12-22 08:38:47,921 WARN L197 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 65 [2020-12-22 08:38:48,386 WARN L197 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2020-12-22 08:38:48,928 WARN L197 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 62 [2020-12-22 08:38:49,344 WARN L197 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2020-12-22 08:38:49,834 WARN L197 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2020-12-22 08:38:50,273 WARN L197 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 58 [2020-12-22 08:38:50,702 WARN L197 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-12-22 08:38:51,043 WARN L197 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2020-12-22 08:38:51,332 WARN L197 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-12-22 08:38:51,566 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2020-12-22 08:38:52,176 WARN L197 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2020-12-22 08:38:52,627 WARN L197 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2020-12-22 08:38:53,520 WARN L197 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 79 [2020-12-22 08:38:53,842 WARN L197 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2020-12-22 08:38:54,603 WARN L197 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 83 [2020-12-22 08:38:55,336 WARN L197 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 75 [2020-12-22 08:38:55,703 WARN L197 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2020-12-22 08:38:55,968 WARN L197 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2020-12-22 08:38:56,403 WARN L197 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2020-12-22 08:38:56,647 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2020-12-22 08:38:56,941 WARN L197 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-12-22 08:38:57,389 WARN L197 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 62 [2020-12-22 08:38:57,664 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2020-12-22 08:38:58,090 WARN L197 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 59 [2020-12-22 08:38:58,371 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2020-12-22 08:38:58,553 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-12-22 08:38:58,883 WARN L197 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2020-12-22 08:38:59,297 WARN L197 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 46 [2020-12-22 08:38:59,763 WARN L197 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2020-12-22 08:39:00,301 WARN L197 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2020-12-22 08:39:00,689 WARN L197 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 58 [2020-12-22 08:39:01,213 WARN L197 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 51 [2020-12-22 08:39:01,640 WARN L197 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 50 [2020-12-22 08:39:02,098 WARN L197 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 48 [2020-12-22 08:39:02,389 WARN L197 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2020-12-22 08:39:03,031 WARN L197 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 80 [2020-12-22 08:39:03,411 WARN L197 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2020-12-22 08:39:03,933 WARN L197 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 66 [2020-12-22 08:39:04,413 WARN L197 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-12-22 08:39:04,896 WARN L197 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 63 [2020-12-22 08:39:05,186 WARN L197 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2020-12-22 08:39:05,385 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2020-12-22 08:39:05,673 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2020-12-22 08:39:05,941 WARN L197 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2020-12-22 08:39:06,328 WARN L197 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2020-12-22 08:39:06,639 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 39 [2020-12-22 08:39:07,096 WARN L197 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2020-12-22 08:39:08,645 WARN L197 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 98 DAG size of output: 72 [2020-12-22 08:39:09,092 WARN L197 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-12-22 08:39:09,870 WARN L197 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2020-12-22 08:39:10,353 WARN L197 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2020-12-22 08:39:11,733 WARN L197 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 94 DAG size of output: 68 [2020-12-22 08:39:12,181 WARN L197 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2020-12-22 08:39:12,922 WARN L197 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2020-12-22 08:39:13,315 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 41 [2020-12-22 08:39:13,933 WARN L197 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 53 [2020-12-22 08:39:14,502 WARN L197 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2020-12-22 08:39:15,101 WARN L197 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 48 [2020-12-22 08:39:15,759 WARN L197 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2020-12-22 08:39:16,310 WARN L197 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2020-12-22 08:39:16,873 WARN L197 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2020-12-22 08:39:17,456 WARN L197 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 45 [2020-12-22 08:39:18,131 WARN L197 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2020-12-22 08:39:18,699 WARN L197 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2020-12-22 08:39:19,084 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2020-12-22 08:39:19,401 WARN L197 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-12-22 08:39:19,783 WARN L197 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2020-12-22 08:39:20,065 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 27 [2020-12-22 08:39:20,347 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 23 [2020-12-22 08:39:20,739 WARN L197 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-12-22 08:39:21,151 WARN L197 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 36 [2020-12-22 08:39:22,920 WARN L197 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 112 DAG size of output: 78 [2020-12-22 08:39:23,440 WARN L197 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2020-12-22 08:39:24,070 WARN L197 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 58 [2020-12-22 08:39:24,534 WARN L197 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2020-12-22 08:39:25,184 WARN L197 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2020-12-22 08:39:26,397 WARN L197 SmtUtils]: Spent 949.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 74 [2020-12-22 08:39:26,786 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 41 [2020-12-22 08:39:27,344 WARN L197 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2020-12-22 08:39:27,662 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2020-12-22 08:39:28,423 WARN L197 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 62 [2020-12-22 08:39:29,006 WARN L197 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 44 [2020-12-22 08:39:29,429 WARN L197 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2020-12-22 08:39:30,203 WARN L197 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2020-12-22 08:39:30,626 WARN L197 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-12-22 08:39:31,346 WARN L197 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2020-12-22 08:39:31,790 WARN L197 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 41 [2020-12-22 08:39:32,112 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2020-12-22 08:39:32,420 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26